Brand gradient

Dropbox gradient

The gradient Dropbox'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.

Extracted
Version
8
Verified from the live site at dropbox.com on 2 September 2026 (version 8).
Dropbox
white text · worst 2.43:1 · fails
white 2.43 failsblack 1.88 failsbanding high

Hero and button

Aa

Hero background

Open in maker →

Chroma ×0.35 so it can carry text; ink white (inkFor at the midpoint). L shifted −0.17 until the ink passes AA at the worst point (4.68:1).

white 4.68 AAblack 1.13 failsbanding high
css
linear-gradient(135deg in oklch shorter hue, #627594 0%, #234072 50%, #080d3c 100%)
tailwind v4
bg-linear-to-br/oklch from-[#627594] via-[#234072] to-[#080d3c]
Aa

Button / CTA

Open in maker →

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 −0.04 so white ink passes AA on the surface and both states (worst 4.59:1).

white 5.06 AAblack 2.95 failsbanding high
Get started
hover
active
label ink passes AA on all three
css
linear-gradient(180deg in oklch shorter hue, #0061ff 0%, #0045e2 100%)
tailwind v4
bg-linear-to-b/oklch from-[#0061ff] to-[#0045e2]

Variants

Aa
white 2.43 failsblack 1.88 failsbanding high
css
linear-gradient(135deg in oklch shorter hue, #6fa7ff 0%, #0061ff 50%, #0018bf 100%)
tailwind v4
bg-linear-to-br/oklch from-[#6fa7ff] via-[#0061ff] to-[#0018bf]
Aa

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

white 4.65 AAblack 4.14 AA largebanding high
css
linear-gradient(135deg in oklab, #0061ff 0%, #007da8 100%)
tailwind v4
bg-linear-to-br/oklab from-[#0061ff] to-[#007da8]
Aa

Complementary

Open in maker →

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 4.86 AAblack 3.93 AA largebanding medium
css
linear-gradient(135deg in oklch shorter hue, #0061ff 0%, #946a00 100%)
tailwind v4
bg-linear-to-br/oklch from-[#0061ff] to-[#946a00]
Aa

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

white 4.99 AAblack 3.89 AA largebanding medium
css
linear-gradient(135deg in oklab, #0061ff 0%, #d60032 100%)
tailwind v4
bg-linear-to-br/oklab from-[#0061ff] to-[#d60032]

Report — brand gradient

  • white ink: worst 2.43:1 at 0% (fails AA); black ink: worst 1.88:1 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: ~10px bands at 1440px — add grain 20 (≈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 2.43:1, black 1.88:1 */
  --brand-gradient: linear-gradient(135deg in oklch shorter hue, #6fa7ff 0%, #0061ff 50%, #0018bf 100%);
  /* hero — worst-case contrast: white 4.68:1 AA, black 1.13:1; ink passes AA at the worst point */
  --brand-gradient-hero: linear-gradient(135deg in oklch shorter hue, #627594 0%, #234072 50%, #080d3c 100%);
  --brand-gradient-hero-ink: #ffffff;
  /* button — worst-case contrast: white 5.06:1 AA, black 2.95:1 */
  --brand-gradient-button: linear-gradient(180deg in oklch shorter hue, #0061ff 0%, #0045e2 100%);
  --brand-gradient-button-hover: linear-gradient(180deg in oklch shorter hue, #116bff 0%, #004fed 100%);
  --brand-gradient-button-active: linear-gradient(180deg in oklch shorter hue, #0057f4 0%, #0039d8 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="#6fa7ff"/><stop offset="3.57%" stop-color="#68a3ff"/><stop offset="7.14%" stop-color="#629eff"/><stop offset="10.71%" stop-color="#5b9aff"/><stop offset="14.29%" stop-color="#5495ff"/><stop offset="17.86%" stop-color="#4d90ff"/><stop offset="21.43%" stop-color="#468cff"/><stop offset="25%" stop-color="#3f87ff"/><stop offset="28.57%" stop-color="#3882ff"/><stop offset="32.14%" stop-color="#317dff"/><stop offset="35.71%" stop-color="#2978ff"/><stop offset="39.29%" stop-color="#2172ff"/><stop offset="42.86%" stop-color="#186dff"/><stop offset="46.43%" stop-color="#0e67ff"/><stop offset="50%" stop-color="#0061ff"/><stop offset="53.57%" stop-color="#005dfa"/><stop offset="57.14%" stop-color="#0058f6"/><stop offset="60.71%" stop-color="#0053f1"/><stop offset="64.29%" stop-color="#004fec"/><stop offset="67.86%" stop-color="#004ae8"/><stop offset="71.43%" stop-color="#0045e3"/><stop offset="75%" stop-color="#0041df"/><stop offset="78.57%" stop-color="#003cda"/><stop offset="82.14%" stop-color="#0036d6"/><stop offset="85.71%" stop-color="#0031d1"/><stop offset="89.29%" stop-color="#002ccd"/><stop offset="92.86%" stop-color="#0026c8"/><stop offset="96.43%" stop-color="#001fc3"/><stop offset="100%" stop-color="#0018bf"/></linearGradient></defs><rect width="1440" height="600" fill="url(#bs-gradient)"/></svg>
dtcg · tokens.json
{
  "gradient": {
    "brand": {
      "$type": "gradient",
      "$value": [
        {
          "color": {
            "colorSpace": "srgb",
            "components": [
              0.435,
              0.655,
              1
            ],
            "hex": "#6fa7ff"
          },
          "position": 0
        },
        {
          "color": {
            "colorSpace": "srgb",
            "components": [
              0,
              0.38,
              1
            ],
            "hex": "#0061ff"
          },
          "position": 0.5
        },
        {
          "color": {
            "colorSpace": "srgb",
            "components": [
              0,
              0.094,
              0.749
            ],
            "hex": "#0018bf"
          },
          "position": 1
        }
      ],
      "$extensions": {
        "com.brandsweets": {
          "kind": "linear",
          "css": "linear-gradient(135deg in oklch shorter hue, #6fa7ff 0%, #0061ff 50%, #0018bf 100%)",
          "interpolation": "oklch",
          "hue": "shorter",
          "angle": 135,
          "name": "brand",
          "contrast": {
            "white": {
              "ratio": 2.428,
              "at": 0,
              "passesAA": false,
              "passesAALarge": false
            },
            "black": {
              "ratio": 1.883,
              "at": 1,
              "passesAA": false,
              "passesAALarge": false
            },
            "suggestedInk": "#ffffff"
          }
        }
      },
      "$description": "The canonical brand gradient (--brand-gradient)."
    },
    "hero": {
      "$type": "gradient",
      "$value": [
        {
          "color": {
            "colorSpace": "srgb",
            "components": [
              0.384,
              0.459,
              0.58
            ],
            "hex": "#627594"
          },
          "position": 0
        },
        {
          "color": {
            "colorSpace": "srgb",
            "components": [
              0.137,
              0.251,
              0.447
            ],
            "hex": "#234072"
          },
          "position": 0.5
        },
        {
          "color": {
            "colorSpace": "srgb",
            "components": [
              0.031,
              0.051,
              0.235
            ],
            "hex": "#080d3c"
          },
          "position": 1
        }
      ],
      "$extensions": {
        "com.brandsweets": {
          "kind": "linear",
          "css": "linear-gradient(135deg in oklch shorter hue, #627594 0%, #234072 50%, #080d3c 100%)",
          "interpolation": "oklch",
          "hue": "shorter",
          "angle": 135,
          "name": "hero",
          "ink": "#ffffff",
          "contrast": {
            "white": {
              "ratio": 4.676,
              "at": 0,
              "passesAA": true,
              "passesAALarge": true
            },
            "black": {
              "ratio": 1.133,
              "at": 1,
              "passesAA": false,
              "passesAALarge": false
            },
            "suggestedInk": "#ffffff"
          }
        }
      },
      "$description": "Low-chroma hero background with a text-safe ink (--brand-gradient-hero)."
    },
    "button": {
      "$type": "gradient",
      "$value": [
        {
          "color": {
            "colorSpace": "srgb",
            "components": [
              0,
              0.38,
              1
            ],
            "hex": "#0061ff"
          },
          "position": 0
        },
        {
          "color": {
            "colorSpace": "srgb",
            "components": [
              0,
              0.271,
              0.886
            ],
            "hex": "#0045e2"
          },
          "position": 1
        }
      ],
      "$extensions": {
        "com.brandsweets": {
          "kind": "linear",
          "css": "linear-gradient(180deg in oklch shorter hue, #0061ff 0%, #0045e2 100%)",
          "interpolation": "oklch",
          "hue": "shorter",
          "angle": 180,
          "name": "button",
          "ink": "#ffffff",
          "states": {
            "hover": "linear-gradient(180deg in oklch shorter hue, #116bff 0%, #004fed 100%)",
            "active": "linear-gradient(180deg in oklch shorter hue, #0057f4 0%, #0039d8 100%)"
          },
          "contrast": {
            "white": {
              "ratio": 5.056,
              "at": 0,
              "passesAA": true,
              "passesAALarge": true
            },
            "black": {
              "ratio": 2.949,
              "at": 0.9841,
              "passesAA": false,
              "passesAALarge": false
            },
            "suggestedInk": "#ffffff"
          }
        }
      },
      "$description": "Button / CTA surface with hover and active states (--brand-gradient-button)."
    }
  }
}

Colours

mcpConnect your agent — Dropbox'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 dropbox-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.

Dropbox 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 Dropbox. Owner of this brand? Request a correction or removal → Machine-readable: gradients.md