Brand gradient

Mistral AI gradient

The gradient Mistral AI'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.

#54b4fc #ffaf01 #b9daff

Open in the maker Mistral AI colors →Full brand page →

Source: mistral.ai
Extracted: 2 September 2026
Version: 6

Mistral AI

black text · worst 9.31:1 · AA

white 1.84 failsblack 9.31 AAbanding medium

Hero and button

Hero background

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Chroma ×0.35 so it can carry text; ink black (inkFor at the midpoint). Passes AA for that ink at the worst point (9.26:1) without adjusting L.

white 1.82 failsblack 9.26 AAbanding high

css

linear-gradient(135deg in oklch shorter hue, #92b0c9 0%, #d8bc97 100%)

tailwind v4

bg-linear-to-br/oklch from-[#92b0c9] to-[#d8bc97]

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. Black ink passes AA on the surface and both states (worst 7.20:1).

white 1.98 failsblack 8.02 AAbanding high

Get started

hover

active

label ink passes AA on all three

css

linear-gradient(180deg in oklch shorter hue, #62c1ff 0%, #46a7ee 100%)

tailwind v4

bg-linear-to-b/oklch from-[#62c1ff] to-[#46a7ee]

Variants

Tonal ramp

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white 1.26 failsblack 4.60 AAbanding high

css

linear-gradient(135deg in oklch shorter hue, #c3ebff 0%, #54b4fc 50%, #027bc0 100%)

tailwind v4

bg-linear-to-br/oklch from-[#c3ebff] via-[#54b4fc] to-[#027bc0]

Analogous

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

white 2.19 failsblack 9.29 AAbanding high

css

linear-gradient(135deg in oklab, #54b4fc 0%, #1fbfdc 100%)

tailwind v4

bg-linear-to-br/oklab from-[#54b4fc] to-[#1fbfdc]

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 2.25 failsblack 8.54 AAbanding medium

css

linear-gradient(135deg in oklch shorter hue, #54b4fc 0%, #f1921b 100%)

tailwind v4

bg-linear-to-br/oklch from-[#54b4fc] to-[#f1921b]

Triadic

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

white 2.25 failsblack 8.49 AAbanding high

css

linear-gradient(135deg in oklab, #54b4fc 0%, #fc7ca0 100%)

tailwind v4

bg-linear-to-br/oklab from-[#54b4fc] to-[#fc7ca0]

Report — brand gradient

white ink: worst 1.84:1 at 95% (fails AA); black ink: worst 9.31:1 at 0% (AA) → use black text.
Banding medium: ~6px bands at 1440px — add grain 9 (≈1% soft-light noise) or shorten the ramp.
6/64 samples left sRGB by more than 5% and were gamut-mapped (oklch shorter); expect slight hue drift there.

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 1.84:1, black 9.31:1 AA */
  --brand-gradient: linear-gradient(135deg in oklch shorter hue, #54b4fc 0%, #ffaf01 100%);
  /* hero — worst-case contrast: white 1.82:1, black 9.26:1 AA; ink passes AA at the worst point */
  --brand-gradient-hero: linear-gradient(135deg in oklch shorter hue, #92b0c9 0%, #d8bc97 100%);
  --brand-gradient-hero-ink: #000000;
  /* button — worst-case contrast: white 1.98:1, black 8.02:1 AA */
  --brand-gradient-button: linear-gradient(180deg in oklch shorter hue, #62c1ff 0%, #46a7ee 100%);
  --brand-gradient-button-hover: linear-gradient(180deg in oklch shorter hue, #76caff 0%, #51b1f9 100%);
  --brand-gradient-button-active: linear-gradient(180deg in oklch shorter hue, #57b7ff 0%, #3b9ee4 100%);
  --brand-gradient-button-ink: #000000;
}

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="#54b4fc"/><stop offset="7.14%" stop-color="#30bcf6"/><stop offset="14.29%" stop-color="#00c2ed"/><stop offset="21.43%" stop-color="#00c9e0"/><stop offset="28.57%" stop-color="#00cdd0"/><stop offset="35.71%" stop-color="#00d1be"/><stop offset="42.86%" stop-color="#00d3a9"/><stop offset="50%" stop-color="#43d494"/><stop offset="57.14%" stop-color="#69d37c"/><stop offset="64.29%" stop-color="#89d064"/><stop offset="71.43%" stop-color="#a6cc4a"/><stop offset="78.57%" stop-color="#c0c62e"/><stop offset="85.71%" stop-color="#d8bf06"/><stop offset="92.86%" stop-color="#edb700"/><stop offset="100%" stop-color="#ffaf01"/></linearGradient></defs><rect width="1440" height="600" fill="url(#bs-gradient)"/></svg>

dtcg · tokens.json

{
  "gradient": {
    "brand": {
      "$type": "gradient",
      "$value": [
        {
          "color": {
            "colorSpace": "srgb",
            "components": [
              0.329,
              0.706,
              0.988
            ],
            "hex": "#54b4fc"
          },
          "position": 0
        },
        {
          "color": {
            "colorSpace": "srgb",
            "components": [
              1,
              0.686,
              0.004
            ],
            "hex": "#ffaf01"
          },
          "position": 1
        }
      ],
      "$extensions": {
        "com.brandsweets": {
          "kind": "linear",
          "css": "linear-gradient(135deg in oklch shorter hue, #54b4fc 0%, #ffaf01 100%)",
          "interpolation": "oklch",
          "hue": "shorter",
          "angle": 135,
          "name": "brand",
          "contrast": {
            "white": {
              "ratio": 1.839,
              "at": 0.9524,
              "passesAA": false,
              "passesAALarge": false
            },
            "black": {
              "ratio": 9.311,
              "at": 0,
              "passesAA": true,
              "passesAALarge": true
            },
            "suggestedInk": "#000000"
          }
        }
      },
      "$description": "The canonical brand gradient (--brand-gradient)."
    },
    "hero": {
      "$type": "gradient",
      "$value": [
        {
          "color": {
            "colorSpace": "srgb",
            "components": [
              0.573,
              0.69,
              0.788
            ],
            "hex": "#92b0c9"
          },
          "position": 0
        },
        {
          "color": {
            "colorSpace": "srgb",
            "components": [
              0.847,
              0.737,
              0.592
            ],
            "hex": "#d8bc97"
          },
          "position": 1
        }
      ],
      "$extensions": {
        "com.brandsweets": {
          "kind": "linear",
          "css": "linear-gradient(135deg in oklch shorter hue, #92b0c9 0%, #d8bc97 100%)",
          "interpolation": "oklch",
          "hue": "shorter",
          "angle": 135,
          "name": "hero",
          "ink": "#000000",
          "contrast": {
            "white": {
              "ratio": 1.817,
              "at": 1,
              "passesAA": false,
              "passesAALarge": false
            },
            "black": {
              "ratio": 9.257,
              "at": 0.0097,
              "passesAA": true,
              "passesAALarge": true
            },
            "suggestedInk": "#000000"
          }
        }
      },
      "$description": "Low-chroma hero background with a text-safe ink (--brand-gradient-hero)."
    },
    "button": {
      "$type": "gradient",
      "$value": [
        {
          "color": {
            "colorSpace": "srgb",
            "components": [
              0.384,
              0.757,
              1
            ],
            "hex": "#62c1ff"
          },
          "position": 0
        },
        {
          "color": {
            "colorSpace": "srgb",
            "components": [
              0.275,
              0.655,
              0.933
            ],
            "hex": "#46a7ee"
          },
          "position": 1
        }
      ],
      "$extensions": {
        "com.brandsweets": {
          "kind": "linear",
          "css": "linear-gradient(180deg in oklch shorter hue, #62c1ff 0%, #46a7ee 100%)",
          "interpolation": "oklch",
          "hue": "shorter",
          "angle": 180,
          "name": "button",
          "ink": "#000000",
          "states": {
            "hover": "linear-gradient(180deg in oklch shorter hue, #76caff 0%, #51b1f9 100%)",
            "active": "linear-gradient(180deg in oklch shorter hue, #57b7ff 0%, #3b9ee4 100%)"
          },
          "contrast": {
            "white": {
              "ratio": 1.983,
              "at": 0,
              "passesAA": false,
              "passesAALarge": false
            },
            "black": {
              "ratio": 8.023,
              "at": 0.9841,
              "passesAA": true,
              "passesAALarge": true
            },
            "suggestedInk": "#000000"
          }
        }
      },
      "$description": "Button / CTA surface with hover and active states (--brand-gradient-button)."
    }
  }
}

Colours

#54b4fc #ffaf01 #b9daff

mcpConnect your agent — Mistral AI'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 mistral-ai — 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.

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