Brand gradient

Chase gradient

The gradient Chase'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.

Source
chase.com
Extracted
Version
6
Verified from the live site at chase.com on 2 September 2026 (version 6).
Chase
white text · worst 3.06:1 · AA large
white 3.06 AA largeblack 1.56 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 −0.10 until the ink passes AA at the worst point (4.53:1).

white 4.53 AAblack 1.21 failsbanding high
css
linear-gradient(135deg in oklch shorter hue, #5f789a 0%, #2c4363 50%, #0f1a2f 100%)
tailwind v4
bg-linear-to-br/oklch from-[#5f789a] via-[#2c4363] to-[#0f1a2f]
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. White ink passes AA on the surface and both states (worst 4.75:1).

white 5.45 AAblack 2.76 failsbanding high
Get started
hover
active
label ink passes AA on all three
css
linear-gradient(180deg in oklch shorter hue, #1968c8 0%, #0050ae 100%)
tailwind v4
bg-linear-to-b/oklch from-[#1968c8] to-[#0050ae]

Variants

Aa
white 3.06 AA largeblack 1.56 failsbanding high
css
linear-gradient(135deg in oklch shorter hue, #4994f8 0%, #045cbb 50%, #00257d 100%)
tailwind v4
bg-linear-to-br/oklch from-[#4994f8] via-[#045cbb] to-[#00257d]
Aa

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

white 6.12 AAblack 3.24 AA largebanding high
css
linear-gradient(135deg in oklab, #045cbb 0%, #056a88 100%)
tailwind v4
bg-linear-to-br/oklab from-[#045cbb] to-[#056a88]
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 5.69 AAblack 3.25 AA largebanding medium
css
linear-gradient(135deg in oklch shorter hue, #045cbb 0%, #805704 100%)
tailwind v4
bg-linear-to-br/oklch from-[#045cbb] to-[#805704]
Aa

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

white 6.43 AAblack 2.97 failsbanding high
css
linear-gradient(135deg in oklab, #045cbb 0%, #b20637 100%)
tailwind v4
bg-linear-to-br/oklab from-[#045cbb] to-[#b20637]

Report — brand gradient

  • white ink: worst 3.06:1 at 0% (AA-large only); black ink: worst 1.56:1 at 100% (fails AA) → use white text.
  • Body text fails AA everywhere on this gradient; large text (≥24px / 19px bold) is fine. Add a scrim or lower the chroma for body copy.
  • 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 3.06:1 AA-large, black 1.56:1 */
  --brand-gradient: linear-gradient(135deg in oklch shorter hue, #4994f8 0%, #045cbb 50%, #00257d 100%);
  /* hero — worst-case contrast: white 4.53:1 AA, black 1.21:1; ink passes AA at the worst point */
  --brand-gradient-hero: linear-gradient(135deg in oklch shorter hue, #5f789a 0%, #2c4363 50%, #0f1a2f 100%);
  --brand-gradient-hero-ink: #ffffff;
  /* button — worst-case contrast: white 5.45:1 AA, black 2.76:1 */
  --brand-gradient-button: linear-gradient(180deg in oklch shorter hue, #1968c8 0%, #0050ae 100%);
  --brand-gradient-button-hover: linear-gradient(180deg in oklch shorter hue, #2472d3 0%, #0059b8 100%);
  --brand-gradient-button-active: linear-gradient(180deg in oklch shorter hue, #0a5fbe 0%, #0047a4 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="#4994f8"/><stop offset="3.57%" stop-color="#4590f4"/><stop offset="7.14%" stop-color="#418cef"/><stop offset="10.71%" stop-color="#3d88eb"/><stop offset="14.29%" stop-color="#3984e6"/><stop offset="17.86%" stop-color="#3480e2"/><stop offset="21.43%" stop-color="#307cde"/><stop offset="25%" stop-color="#2c78d9"/><stop offset="28.57%" stop-color="#2774d5"/><stop offset="32.14%" stop-color="#2270d1"/><stop offset="35.71%" stop-color="#1e6ccc"/><stop offset="39.29%" stop-color="#1868c8"/><stop offset="42.86%" stop-color="#1364c4"/><stop offset="46.43%" stop-color="#0c60bf"/><stop offset="50%" stop-color="#045cbb"/><stop offset="53.57%" stop-color="#0358b6"/><stop offset="57.14%" stop-color="#0254b2"/><stop offset="60.71%" stop-color="#0150ae"/><stop offset="64.29%" stop-color="#014ca9"/><stop offset="67.86%" stop-color="#0048a5"/><stop offset="71.43%" stop-color="#0044a0"/><stop offset="75%" stop-color="#00409c"/><stop offset="78.57%" stop-color="#003d97"/><stop offset="82.14%" stop-color="#003993"/><stop offset="85.71%" stop-color="#00358e"/><stop offset="89.29%" stop-color="#00318a"/><stop offset="92.86%" stop-color="#002d86"/><stop offset="96.43%" stop-color="#002981"/><stop offset="100%" stop-color="#00257d"/></linearGradient></defs><rect width="1440" height="600" fill="url(#bs-gradient)"/></svg>
dtcg · tokens.json
{
  "gradient": {
    "brand": {
      "$type": "gradient",
      "$value": [
        {
          "color": {
            "colorSpace": "srgb",
            "components": [
              0.286,
              0.58,
              0.973
            ],
            "hex": "#4994f8"
          },
          "position": 0
        },
        {
          "color": {
            "colorSpace": "srgb",
            "components": [
              0.016,
              0.361,
              0.733
            ],
            "hex": "#045cbb"
          },
          "position": 0.5
        },
        {
          "color": {
            "colorSpace": "srgb",
            "components": [
              0,
              0.145,
              0.49
            ],
            "hex": "#00257d"
          },
          "position": 1
        }
      ],
      "$extensions": {
        "com.brandsweets": {
          "kind": "linear",
          "css": "linear-gradient(135deg in oklch shorter hue, #4994f8 0%, #045cbb 50%, #00257d 100%)",
          "interpolation": "oklch",
          "hue": "shorter",
          "angle": 135,
          "name": "brand",
          "contrast": {
            "white": {
              "ratio": 3.055,
              "at": 0,
              "passesAA": false,
              "passesAALarge": true
            },
            "black": {
              "ratio": 1.561,
              "at": 1,
              "passesAA": false,
              "passesAALarge": false
            },
            "suggestedInk": "#ffffff"
          }
        }
      },
      "$description": "The canonical brand gradient (--brand-gradient)."
    },
    "hero": {
      "$type": "gradient",
      "$value": [
        {
          "color": {
            "colorSpace": "srgb",
            "components": [
              0.373,
              0.471,
              0.604
            ],
            "hex": "#5f789a"
          },
          "position": 0
        },
        {
          "color": {
            "colorSpace": "srgb",
            "components": [
              0.173,
              0.263,
              0.388
            ],
            "hex": "#2c4363"
          },
          "position": 0.5
        },
        {
          "color": {
            "colorSpace": "srgb",
            "components": [
              0.059,
              0.102,
              0.184
            ],
            "hex": "#0f1a2f"
          },
          "position": 1
        }
      ],
      "$extensions": {
        "com.brandsweets": {
          "kind": "linear",
          "css": "linear-gradient(135deg in oklch shorter hue, #5f789a 0%, #2c4363 50%, #0f1a2f 100%)",
          "interpolation": "oklch",
          "hue": "shorter",
          "angle": 135,
          "name": "hero",
          "ink": "#ffffff",
          "contrast": {
            "white": {
              "ratio": 4.526,
              "at": 0,
              "passesAA": true,
              "passesAALarge": true
            },
            "black": {
              "ratio": 1.209,
              "at": 1,
              "passesAA": false,
              "passesAALarge": false
            },
            "suggestedInk": "#ffffff"
          }
        }
      },
      "$description": "Low-chroma hero background with a text-safe ink (--brand-gradient-hero)."
    },
    "button": {
      "$type": "gradient",
      "$value": [
        {
          "color": {
            "colorSpace": "srgb",
            "components": [
              0.098,
              0.408,
              0.784
            ],
            "hex": "#1968c8"
          },
          "position": 0
        },
        {
          "color": {
            "colorSpace": "srgb",
            "components": [
              0,
              0.314,
              0.682
            ],
            "hex": "#0050ae"
          },
          "position": 1
        }
      ],
      "$extensions": {
        "com.brandsweets": {
          "kind": "linear",
          "css": "linear-gradient(180deg in oklch shorter hue, #1968c8 0%, #0050ae 100%)",
          "interpolation": "oklch",
          "hue": "shorter",
          "angle": 180,
          "name": "button",
          "ink": "#ffffff",
          "states": {
            "hover": "linear-gradient(180deg in oklch shorter hue, #2472d3 0%, #0059b8 100%)",
            "active": "linear-gradient(180deg in oklch shorter hue, #0a5fbe 0%, #0047a4 100%)"
          },
          "contrast": {
            "white": {
              "ratio": 5.447,
              "at": 0,
              "passesAA": true,
              "passesAALarge": true
            },
            "black": {
              "ratio": 2.759,
              "at": 0.9841,
              "passesAA": false,
              "passesAALarge": false
            },
            "suggestedInk": "#ffffff"
          }
        }
      },
      "$description": "Button / CTA surface with hover and active states (--brand-gradient-button)."
    }
  }
}

Colours

mcpConnect your agent — Chase'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 chase-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.

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