Brand gradient

Kraken gradient

The gradient Kraken'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.

#331469 #5c29be #00adfe

Open in the maker Kraken colors →Full brand page →crypto

Source: kraken.com
Extracted: 2 September 2026
Version: 3

Kraken

white text · worst 8.35:1 · AA

white 8.35 AAblack 1.45 failsbanding high

Hero and button

Hero background

Open in maker →

Chroma ×0.35 so it can carry text; ink white (inkFor at the midpoint). Passes AA for that ink at the worst point (7.68:1) without adjusting L.

white 7.68 AAblack 1.50 failsbanding high

css

linear-gradient(135deg in oklab, #2e2843 0%, #554d7b 100%)

tailwind v4

bg-linear-to-br/oklab from-[#2e2843] to-[#554d7b]

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 11.15:1).

white 12.55 AAblack 1.28 failsbanding high

Get started

hover

active

label ink passes AA on all three

css

linear-gradient(180deg in oklch shorter hue, #3d2175 0%, #2a055d 100%)

tailwind v4

bg-linear-to-b/oklch from-[#3d2175] to-[#2a055d]

Variants

Tonal ramp

Open in maker →

white 6.99 AAblack 1.04 failsbanding high

css

linear-gradient(135deg in oklch shorter hue, #614aa1 0%, #331469 50%, #090023 100%)

tailwind v4

bg-linear-to-br/oklch from-[#614aa1] via-[#331469] to-[#090023]

Analogous

Open in maker →

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

white 13.96 AAblack 1.44 failsbanding high

css

linear-gradient(135deg in oklab, #331469 0%, #082768 100%)

tailwind v4

bg-linear-to-br/oklab from-[#331469] to-[#082768]

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 13.56 AAblack 1.44 failsbanding high

css

linear-gradient(135deg in oklch shorter hue, #331469 0%, #2e300c 100%)

tailwind v4

bg-linear-to-br/oklch from-[#331469] to-[#2e300c]

Triadic

Open in maker →

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

white 13.95 AAblack 1.44 failsbanding high

css

linear-gradient(135deg in oklab, #331469 0%, #45230b 100%)

tailwind v4

bg-linear-to-br/oklab from-[#331469] to-[#45230b]

Report — brand gradient

white ink: worst 8.35:1 at 100% (AA); black ink: worst 1.45:1 at 0% (fails AA) → use white text.
Banding high: ~17px bands at 1440px — add grain 35 (≈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 8.35:1 AA, black 1.45:1 */
  --brand-gradient: linear-gradient(135deg in oklab, #331469 0%, #5c29be 100%);
  /* hero — worst-case contrast: white 7.68:1 AA, black 1.50:1; ink passes AA at the worst point */
  --brand-gradient-hero: linear-gradient(135deg in oklab, #2e2843 0%, #554d7b 100%);
  --brand-gradient-hero-ink: #ffffff;
  /* button — worst-case contrast: white 12.55:1 AA, black 1.28:1 */
  --brand-gradient-button: linear-gradient(180deg in oklch shorter hue, #3d2175 0%, #2a055d 100%);
  --brand-gradient-button-hover: linear-gradient(180deg in oklch shorter hue, #442a7f 0%, #311066 100%);
  --brand-gradient-button-active: linear-gradient(180deg in oklch shorter hue, #35176c 0%, #230054 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="#331469"/><stop offset="7.14%" stop-color="#36156f"/><stop offset="14.29%" stop-color="#391775"/><stop offset="21.43%" stop-color="#3b187a"/><stop offset="28.57%" stop-color="#3e1a80"/><stop offset="35.71%" stop-color="#411b86"/><stop offset="42.86%" stop-color="#441d8c"/><stop offset="50%" stop-color="#471e92"/><stop offset="57.14%" stop-color="#4a2098"/><stop offset="64.29%" stop-color="#4d219f"/><stop offset="71.43%" stop-color="#5023a5"/><stop offset="78.57%" stop-color="#5324ab"/><stop offset="85.71%" stop-color="#5626b1"/><stop offset="92.86%" stop-color="#5927b8"/><stop offset="100%" stop-color="#5c29be"/></linearGradient></defs><rect width="1440" height="600" fill="url(#bs-gradient)"/></svg>

dtcg · tokens.json

{
  "gradient": {
    "brand": {
      "$type": "gradient",
      "$value": [
        {
          "color": {
            "colorSpace": "srgb",
            "components": [
              0.2,
              0.078,
              0.412
            ],
            "hex": "#331469"
          },
          "position": 0
        },
        {
          "color": {
            "colorSpace": "srgb",
            "components": [
              0.361,
              0.161,
              0.745
            ],
            "hex": "#5c29be"
          },
          "position": 1
        }
      ],
      "$extensions": {
        "com.brandsweets": {
          "kind": "linear",
          "css": "linear-gradient(135deg in oklab, #331469 0%, #5c29be 100%)",
          "interpolation": "oklab",
          "angle": 135,
          "name": "brand",
          "contrast": {
            "white": {
              "ratio": 8.347,
              "at": 1,
              "passesAA": true,
              "passesAALarge": true
            },
            "black": {
              "ratio": 1.445,
              "at": 0,
              "passesAA": false,
              "passesAALarge": false
            },
            "suggestedInk": "#ffffff"
          }
        }
      },
      "$description": "The canonical brand gradient (--brand-gradient)."
    },
    "hero": {
      "$type": "gradient",
      "$value": [
        {
          "color": {
            "colorSpace": "srgb",
            "components": [
              0.18,
              0.157,
              0.263
            ],
            "hex": "#2e2843"
          },
          "position": 0
        },
        {
          "color": {
            "colorSpace": "srgb",
            "components": [
              0.333,
              0.302,
              0.482
            ],
            "hex": "#554d7b"
          },
          "position": 1
        }
      ],
      "$extensions": {
        "com.brandsweets": {
          "kind": "linear",
          "css": "linear-gradient(135deg in oklab, #2e2843 0%, #554d7b 100%)",
          "interpolation": "oklab",
          "angle": 135,
          "name": "hero",
          "ink": "#ffffff",
          "contrast": {
            "white": {
              "ratio": 7.682,
              "at": 1,
              "passesAA": true,
              "passesAALarge": true
            },
            "black": {
              "ratio": 1.501,
              "at": 0,
              "passesAA": false,
              "passesAALarge": false
            },
            "suggestedInk": "#ffffff"
          }
        }
      },
      "$description": "Low-chroma hero background with a text-safe ink (--brand-gradient-hero)."
    },
    "button": {
      "$type": "gradient",
      "$value": [
        {
          "color": {
            "colorSpace": "srgb",
            "components": [
              0.239,
              0.129,
              0.459
            ],
            "hex": "#3d2175"
          },
          "position": 0
        },
        {
          "color": {
            "colorSpace": "srgb",
            "components": [
              0.165,
              0.02,
              0.365
            ],
            "hex": "#2a055d"
          },
          "position": 1
        }
      ],
      "$extensions": {
        "com.brandsweets": {
          "kind": "linear",
          "css": "linear-gradient(180deg in oklch shorter hue, #3d2175 0%, #2a055d 100%)",
          "interpolation": "oklch",
          "hue": "shorter",
          "angle": 180,
          "name": "button",
          "ink": "#ffffff",
          "states": {
            "hover": "linear-gradient(180deg in oklch shorter hue, #442a7f 0%, #311066 100%)",
            "active": "linear-gradient(180deg in oklch shorter hue, #35176c 0%, #230054 100%)"
          },
          "contrast": {
            "white": {
              "ratio": 12.554,
              "at": 0,
              "passesAA": true,
              "passesAALarge": true
            },
            "black": {
              "ratio": 1.278,
              "at": 0.9841,
              "passesAA": false,
              "passesAALarge": false
            },
            "suggestedInk": "#ffffff"
          }
        }
      },
      "$description": "Button / CTA surface with hover and active states (--brand-gradient-button)."
    }
  }
}

Colours

#331469 #5c29be #00adfe

mcpConnect your agent — Kraken'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 kraken-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.

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