Brand gradient

Box gradient

The gradient Box's published colour tokens imply, derived by a pure function of the palette: primary → secondary in OKLab (OKLCH shorter hue when the hues are more than 140° apart; a tonal ramp when they are within ΔE 0.15), then a hero background with an ink that passes AA at the worst point along the line, a button surface with hover and active states, and the variant contact sheet. Same inputs, same gradients, forever — which is what makes them citable; the same values are served as --brand-gradient in the brand's brand.css.

#0061d5 #48060a

Open in the maker Box colors →Full brand page →

Source: box.com
Extracted: 2 September 2026
Version: 4

Box

white text · worst 2.79:1 · fails

white 2.79 failsblack 1.72 failsbanding high

Hero and button

Hero background

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Chroma ×0.35 so it can carry text; ink white (inkFor at the midpoint). L shifted −0.13 until the ink passes AA at the worst point (4.61:1).

white 4.61 AAblack 1.18 failsbanding high

css

linear-gradient(135deg in oklch shorter hue, #5d7798 0%, #294269 50%, #0e1634 100%)

tailwind v4

bg-linear-to-br/oklch from-[#5d7798] via-[#294269] to-[#0e1634]

Button / CTA

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ΔL 0.08 top→bottom in the primary's hue (a lit surface, not a rainbow); hover L +0.03, active L −0.03. L shifted −0.02 so white ink passes AA on the surface and both states (worst 4.61:1).

white 5.26 AAblack 2.85 failsbanding high

Get started

hover

active

label ink passes AA on all three

css

linear-gradient(180deg in oklch shorter hue, #0d67dc 0%, #004ec0 100%)

tailwind v4

bg-linear-to-b/oklch from-[#0d67dc] to-[#004ec0]

Variants

Tonal ramp

Open in maker →

white 2.79 failsblack 1.72 failsbanding high

css

linear-gradient(135deg in oklch shorter hue, #509cff 0%, #0061d5 50%, #002697 100%)

tailwind v4

bg-linear-to-br/oklch from-[#509cff] via-[#0061d5] to-[#002697]

Analogous

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Partner hue from the analogous rule at the source colour's lightness.

white 5.38 AAblack 3.66 AA largebanding high

css

linear-gradient(135deg in oklab, #0061d5 0%, #007396 100%)

tailwind v4

bg-linear-to-br/oklab from-[#0061d5] to-[#007396]

Complementary

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Partner hue from the complementary rule at the source colour's lightness. ΔH 180° > 140° — interpolating in oklch (shorter hue) keeps the midpoint saturated.

white 5.62 AAblack 3.45 AA largebanding medium

css

linear-gradient(135deg in oklch shorter hue, #0061d5 0%, #8a5f00 100%)

tailwind v4

bg-linear-to-br/oklch from-[#0061d5] to-[#8a5f00]

Triadic

Open in maker →

Partner hue from the triadic rule at the source colour's lightness.

white 5.70 AAblack 3.36 AA largebanding medium

css

linear-gradient(135deg in oklab, #0061d5 0%, #c30037 100%)

tailwind v4

bg-linear-to-br/oklab from-[#0061d5] to-[#c30037]

Report — brand gradient

white ink: worst 2.79:1 at 0% (fails AA); black ink: worst 1.72:1 at 100% (fails AA) → use white text.
Neither ink passes AA at the worst point — treat as decorative or add a scrim (rgba(0,0,0,.35) typically lifts white ink past 4:1).
Banding high: ~12px bands at 1440px — add grain 24 (≈2% soft-light noise) or shorten the ramp.

Export

The custom properties below are byte-identical to the gradient block in brand.css; the DTCG token is what tokens.json carries.

css custom properties · brand.css

:root {
  /* Brand gradient (derived) */
  /* worst-case contrast: white 2.79:1, black 1.72:1 */
  --brand-gradient: linear-gradient(135deg in oklch shorter hue, #509cff 0%, #0061d5 50%, #002697 100%);
  /* hero — worst-case contrast: white 4.61:1 AA, black 1.18:1; ink passes AA at the worst point */
  --brand-gradient-hero: linear-gradient(135deg in oklch shorter hue, #5d7798 0%, #294269 50%, #0e1634 100%);
  --brand-gradient-hero-ink: #ffffff;
  /* button — worst-case contrast: white 5.26:1 AA, black 2.85:1 */
  --brand-gradient-button: linear-gradient(180deg in oklch shorter hue, #0d67dc 0%, #004ec0 100%);
  --brand-gradient-button-hover: linear-gradient(180deg in oklch shorter hue, #1b71e6 0%, #0057cb 100%);
  --brand-gradient-button-active: linear-gradient(180deg in oklch shorter hue, #005ed2 0%, #0044b6 100%);
  --brand-gradient-button-ink: #ffffff;
}

svg · brand gradient

<svg xmlns="http://www.w3.org/2000/svg" width="1440" height="600" viewBox="0 0 1440 600"><defs><linearGradient id="bs-gradient" gradientUnits="userSpaceOnUse" x1="210" y1="-210" x2="1230" y2="810"><stop offset="0%" stop-color="#509cff"/><stop offset="3.57%" stop-color="#4b98fc"/><stop offset="7.14%" stop-color="#4794f9"/><stop offset="10.71%" stop-color="#4290f6"/><stop offset="14.29%" stop-color="#3d8bf3"/><stop offset="17.86%" stop-color="#3887f0"/><stop offset="21.43%" stop-color="#3383ed"/><stop offset="25%" stop-color="#2e7fea"/><stop offset="28.57%" stop-color="#297be7"/><stop offset="32.14%" stop-color="#2476e4"/><stop offset="35.71%" stop-color="#1e72e1"/><stop offset="39.29%" stop-color="#186ede"/><stop offset="42.86%" stop-color="#116adb"/><stop offset="46.43%" stop-color="#0965d8"/><stop offset="50%" stop-color="#0061d5"/><stop offset="53.57%" stop-color="#005dd0"/><stop offset="57.14%" stop-color="#0059cc"/><stop offset="60.71%" stop-color="#0055c8"/><stop offset="64.29%" stop-color="#0051c3"/><stop offset="67.86%" stop-color="#004cbf"/><stop offset="71.43%" stop-color="#0048ba"/><stop offset="75%" stop-color="#0044b6"/><stop offset="78.57%" stop-color="#0040b1"/><stop offset="82.14%" stop-color="#003cad"/><stop offset="85.71%" stop-color="#0038a8"/><stop offset="89.29%" stop-color="#0033a4"/><stop offset="92.86%" stop-color="#002fa0"/><stop offset="96.43%" stop-color="#002b9b"/><stop offset="100%" stop-color="#002697"/></linearGradient></defs><rect width="1440" height="600" fill="url(#bs-gradient)"/></svg>

dtcg · tokens.json

{
  "gradient": {
    "brand": {
      "$type": "gradient",
      "$value": [
        {
          "color": {
            "colorSpace": "srgb",
            "components": [
              0.314,
              0.612,
              1
            ],
            "hex": "#509cff"
          },
          "position": 0
        },
        {
          "color": {
            "colorSpace": "srgb",
            "components": [
              0,
              0.38,
              0.835
            ],
            "hex": "#0061d5"
          },
          "position": 0.5
        },
        {
          "color": {
            "colorSpace": "srgb",
            "components": [
              0,
              0.149,
              0.592
            ],
            "hex": "#002697"
          },
          "position": 1
        }
      ],
      "$extensions": {
        "com.brandsweets": {
          "kind": "linear",
          "css": "linear-gradient(135deg in oklch shorter hue, #509cff 0%, #0061d5 50%, #002697 100%)",
          "interpolation": "oklch",
          "hue": "shorter",
          "angle": 135,
          "name": "brand",
          "contrast": {
            "white": {
              "ratio": 2.785,
              "at": 0,
              "passesAA": false,
              "passesAALarge": false
            },
            "black": {
              "ratio": 1.724,
              "at": 1,
              "passesAA": false,
              "passesAALarge": false
            },
            "suggestedInk": "#ffffff"
          }
        }
      },
      "$description": "The canonical brand gradient (--brand-gradient)."
    },
    "hero": {
      "$type": "gradient",
      "$value": [
        {
          "color": {
            "colorSpace": "srgb",
            "components": [
              0.365,
              0.467,
              0.596
            ],
            "hex": "#5d7798"
          },
          "position": 0
        },
        {
          "color": {
            "colorSpace": "srgb",
            "components": [
              0.161,
              0.259,
              0.412
            ],
            "hex": "#294269"
          },
          "position": 0.5
        },
        {
          "color": {
            "colorSpace": "srgb",
            "components": [
              0.055,
              0.086,
              0.204
            ],
            "hex": "#0e1634"
          },
          "position": 1
        }
      ],
      "$extensions": {
        "com.brandsweets": {
          "kind": "linear",
          "css": "linear-gradient(135deg in oklch shorter hue, #5d7798 0%, #294269 50%, #0e1634 100%)",
          "interpolation": "oklch",
          "hue": "shorter",
          "angle": 135,
          "name": "hero",
          "ink": "#ffffff",
          "contrast": {
            "white": {
              "ratio": 4.608,
              "at": 0,
              "passesAA": true,
              "passesAALarge": true
            },
            "black": {
              "ratio": 1.183,
              "at": 1,
              "passesAA": false,
              "passesAALarge": false
            },
            "suggestedInk": "#ffffff"
          }
        }
      },
      "$description": "Low-chroma hero background with a text-safe ink (--brand-gradient-hero)."
    },
    "button": {
      "$type": "gradient",
      "$value": [
        {
          "color": {
            "colorSpace": "srgb",
            "components": [
              0.051,
              0.404,
              0.863
            ],
            "hex": "#0d67dc"
          },
          "position": 0
        },
        {
          "color": {
            "colorSpace": "srgb",
            "components": [
              0,
              0.306,
              0.753
            ],
            "hex": "#004ec0"
          },
          "position": 1
        }
      ],
      "$extensions": {
        "com.brandsweets": {
          "kind": "linear",
          "css": "linear-gradient(180deg in oklch shorter hue, #0d67dc 0%, #004ec0 100%)",
          "interpolation": "oklch",
          "hue": "shorter",
          "angle": 180,
          "name": "button",
          "ink": "#ffffff",
          "states": {
            "hover": "linear-gradient(180deg in oklch shorter hue, #1b71e6 0%, #0057cb 100%)",
            "active": "linear-gradient(180deg in oklch shorter hue, #005ed2 0%, #0044b6 100%)"
          },
          "contrast": {
            "white": {
              "ratio": 5.262,
              "at": 0,
              "passesAA": true,
              "passesAALarge": true
            },
            "black": {
              "ratio": 2.851,
              "at": 0.9841,
              "passesAA": false,
              "passesAALarge": false
            },
            "suggestedInk": "#ffffff"
          }
        }
      },
      "$description": "Button / CTA surface with hover and active states (--brand-gradient-button)."
    }
  }
}

Colours

#0061d5 #48060a

mcpConnect your agent — Box's gradients on demand

live endpoint

Point any MCP client at the shared gradients endpoint and your agent gets the same engine as this page — make_gradient returns CSS with the interpolation space, Tailwind v4, SVG, a PNG URL, a DTCG token and the contrast report in one call; brand_gradients derives the whole contact sheet from a brand or a palette. Read-only, no key. Every gradient is a /gradients/new/… link: open it, refine, paste it back.

endpointhttps://mcp.brandsweets.com/gradients/mcp

claude mcp add --transport http brandsweets-gradients https://mcp.brandsweets.com/gradients/mcp

try this prompt

›brand_gradients for box-com — give me the hero CSS and the ink that passes AA, then a version in oklch

Want the agent to remember your picks and write them into a living brand? Create a free BrandSweets workspace.

Box and its marks belong to their owner. This page uses the name nominatively to describe gradients derived from the brand's published colour values; it does not reproduce logos or other brand assets, and it is not affiliated with or endorsed by Box. Owner of this brand? Request a correction or removal → Machine-readable: gradients.md