Brand gradient

MetaMask gradient

The gradient MetaMask'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.

#0a0a0a #3d065f #e5ffc3

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

Source: metamask.io
Extracted: 2 September 2026
Version: 3

MetaMask

white text · worst 15.11:1 · AA

white 15.11 AAblack 1.06 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 (14.46:1) without adjusting L.

white 14.46 AAblack 1.06 failsbanding high

css

linear-gradient(135deg in oklab, #0a0a0a 0%, #31243e 100%)

tailwind v4

bg-linear-to-br/oklab from-[#0a0a0a] to-[#31243e]

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 17.58:1).

white 18.58 AAblack 1.02 failsbanding high

Get started

hover

active

label ink passes AA on all three

css

linear-gradient(180deg in oklch shorter hue, #131313 0%, #040404 100%)

tailwind v4

bg-linear-to-b/oklch from-[#131313] to-[#040404]

Variants

Tonal ramp

Open in maker →

white 12.45 AAblack 1.00 failsbanding high

css

linear-gradient(135deg in oklch shorter hue, #343434 0%, #0a0a0a 50%, #000000 100%)

tailwind v4

bg-linear-to-br/oklch from-[#343434] via-[#0a0a0a] to-[#000000]

Analogous

Open in maker →

Primary #0a0a0a is achromatic — harmony rotates #3d065f instead. Partner hue from the analogous rule at the source colour's lightness.

white 15.04 AAblack 1.38 failsbanding high

css

linear-gradient(135deg in oklab, #3d065f 0%, #20097b 100%)

tailwind v4

bg-linear-to-br/oklab from-[#3d065f] to-[#20097b]

Complementary

Open in maker →

Primary #0a0a0a is achromatic — harmony rotates #3d065f instead. 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 13.86 AAblack 1.39 failsbanding high

css

linear-gradient(135deg in oklch shorter hue, #3d065f 0%, #223103 100%)

tailwind v4

bg-linear-to-br/oklch from-[#3d065f] to-[#223103]

Triadic

Open in maker →

Primary #0a0a0a is achromatic — harmony rotates #3d065f instead. Partner hue from the triadic rule at the source colour's lightness.

white 14.34 AAblack 1.39 failsbanding high

css

linear-gradient(135deg in oklab, #3d065f 0%, #3e2403 100%)

tailwind v4

bg-linear-to-br/oklab from-[#3d065f] to-[#3e2403]

Report — brand gradient

white ink: worst 15.11:1 at 100% (AA); black ink: worst 1.06:1 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 15.11:1 AA, black 1.06:1 */
  --brand-gradient: linear-gradient(135deg in oklab, #0a0a0a 0%, #3d065f 100%);
  /* hero — worst-case contrast: white 14.46:1 AA, black 1.06:1; ink passes AA at the worst point */
  --brand-gradient-hero: linear-gradient(135deg in oklab, #0a0a0a 0%, #31243e 100%);
  --brand-gradient-hero-ink: #ffffff;
  /* button — worst-case contrast: white 18.58:1 AA, black 1.02:1 */
  --brand-gradient-button: linear-gradient(180deg in oklch shorter hue, #131313 0%, #040404 100%);
  --brand-gradient-button-hover: linear-gradient(180deg in oklch shorter hue, #191919 0%, #080808 100%);
  --brand-gradient-button-active: linear-gradient(180deg in oklch shorter hue, #0c0c0c 0%, #010101 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="#0a0a0a"/><stop offset="7.14%" stop-color="#0d0b10"/><stop offset="14.29%" stop-color="#110c15"/><stop offset="21.43%" stop-color="#140d1b"/><stop offset="28.57%" stop-color="#170e21"/><stop offset="35.71%" stop-color="#1b0e26"/><stop offset="42.86%" stop-color="#1e0e2c"/><stop offset="50%" stop-color="#220e32"/><stop offset="57.14%" stop-color="#260e39"/><stop offset="64.29%" stop-color="#2a0e3f"/><stop offset="71.43%" stop-color="#2d0d45"/><stop offset="78.57%" stop-color="#310c4b"/><stop offset="85.71%" stop-color="#350b52"/><stop offset="92.86%" stop-color="#390958"/><stop offset="100%" stop-color="#3d065f"/></linearGradient></defs><rect width="1440" height="600" fill="url(#bs-gradient)"/></svg>

dtcg · tokens.json

{
  "gradient": {
    "brand": {
      "$type": "gradient",
      "$value": [
        {
          "color": {
            "colorSpace": "srgb",
            "components": [
              0.039,
              0.039,
              0.039
            ],
            "hex": "#0a0a0a"
          },
          "position": 0
        },
        {
          "color": {
            "colorSpace": "srgb",
            "components": [
              0.239,
              0.024,
              0.373
            ],
            "hex": "#3d065f"
          },
          "position": 1
        }
      ],
      "$extensions": {
        "com.brandsweets": {
          "kind": "linear",
          "css": "linear-gradient(135deg in oklab, #0a0a0a 0%, #3d065f 100%)",
          "interpolation": "oklab",
          "angle": 135,
          "name": "brand",
          "contrast": {
            "white": {
              "ratio": 15.111,
              "at": 1,
              "passesAA": true,
              "passesAALarge": true
            },
            "black": {
              "ratio": 1.061,
              "at": 0,
              "passesAA": false,
              "passesAALarge": false
            },
            "suggestedInk": "#ffffff"
          }
        }
      },
      "$description": "The canonical brand gradient (--brand-gradient)."
    },
    "hero": {
      "$type": "gradient",
      "$value": [
        {
          "color": {
            "colorSpace": "srgb",
            "components": [
              0.039,
              0.039,
              0.039
            ],
            "hex": "#0a0a0a"
          },
          "position": 0
        },
        {
          "color": {
            "colorSpace": "srgb",
            "components": [
              0.192,
              0.141,
              0.243
            ],
            "hex": "#31243e"
          },
          "position": 1
        }
      ],
      "$extensions": {
        "com.brandsweets": {
          "kind": "linear",
          "css": "linear-gradient(135deg in oklab, #0a0a0a 0%, #31243e 100%)",
          "interpolation": "oklab",
          "angle": 135,
          "name": "hero",
          "ink": "#ffffff",
          "contrast": {
            "white": {
              "ratio": 14.458,
              "at": 1,
              "passesAA": true,
              "passesAALarge": true
            },
            "black": {
              "ratio": 1.061,
              "at": 0,
              "passesAA": false,
              "passesAALarge": false
            },
            "suggestedInk": "#ffffff"
          }
        }
      },
      "$description": "Low-chroma hero background with a text-safe ink (--brand-gradient-hero)."
    },
    "button": {
      "$type": "gradient",
      "$value": [
        {
          "color": {
            "colorSpace": "srgb",
            "components": [
              0.075,
              0.075,
              0.075
            ],
            "hex": "#131313"
          },
          "position": 0
        },
        {
          "color": {
            "colorSpace": "srgb",
            "components": [
              0.016,
              0.016,
              0.016
            ],
            "hex": "#040404"
          },
          "position": 1
        }
      ],
      "$extensions": {
        "com.brandsweets": {
          "kind": "linear",
          "css": "linear-gradient(180deg in oklch shorter hue, #131313 0%, #040404 100%)",
          "interpolation": "oklch",
          "hue": "shorter",
          "angle": 180,
          "name": "button",
          "ink": "#ffffff",
          "states": {
            "hover": "linear-gradient(180deg in oklch shorter hue, #191919 0%, #080808 100%)",
            "active": "linear-gradient(180deg in oklch shorter hue, #0c0c0c 0%, #010101 100%)"
          },
          "contrast": {
            "white": {
              "ratio": 18.58,
              "at": 0,
              "passesAA": true,
              "passesAALarge": true
            },
            "black": {
              "ratio": 1.024,
              "at": 0.9524,
              "passesAA": false,
              "passesAALarge": false
            },
            "suggestedInk": "#ffffff"
          }
        }
      },
      "$description": "Button / CTA surface with hover and active states (--brand-gradient-button)."
    }
  }
}

Colours

#0a0a0a #3d065f #e5ffc3

mcpConnect your agent — MetaMask'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 metamask-io — 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.

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