Brand gradient

Google gradient

The gradient Google'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.

#4285f4 #ea4335 #fbbc05

Open in the maker Google colors →Full brand page →Technology / search & advertising

Source: google.com
Extracted: 2 September 2026
Version: 7

Google

black text · worst 5.34:1 · AA

white 3.55 AA largeblack 5.34 AAbanding medium

Hero and button

Hero background

Open in maker →

Chroma ×0.35 so it can carry text; ink white (inkFor at the midpoint). L shifted −0.07 until the ink passes AA at the worst point (4.65:1).

white 4.65 AAblack 4.25 AA largebanding high

css

linear-gradient(135deg in oklab, #5e759b 0%, #9a625a 100%)

tailwind v4

bg-linear-to-br/oklab from-[#5e759b] to-[#9a625a]

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 −0.10 so white ink gets as close as the ±0.1 bound allows to AA on the surface and both states (worst 4.04:1). Ink is below AA (4.04:1 at the worst point) — use it for large text only, or pick a darker/lighter primary for buttons.

white 4.57 AAblack 3.26 AA largebanding high

Get started

hover

active

label ink below AA — large text only

css

linear-gradient(180deg in oklch shorter hue, #3072df 0%, #1559c4 100%)

tailwind v4

bg-linear-to-b/oklch from-[#3072df] to-[#1559c4]

Variants

Tonal ramp

Open in maker →

white 1.84 failsblack 2.72 failsbanding high

css

linear-gradient(135deg in oklch shorter hue, #94c2ff 0%, #4285f4 50%, #034cb7 100%)

tailwind v4

bg-linear-to-br/oklch from-[#94c2ff] via-[#4285f4] to-[#034cb7]

Analogous

Open in maker →

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

white 3.40 AA largeblack 5.87 AAbanding high

css

linear-gradient(135deg in oklab, #4285f4 0%, #2995c0 100%)

tailwind v4

bg-linear-to-br/oklab from-[#4285f4] to-[#2995c0]

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 3.15 AA largeblack 5.88 AAbanding medium

css

linear-gradient(135deg in oklch shorter hue, #4285f4 0%, #ae8024 100%)

tailwind v4

bg-linear-to-br/oklch from-[#4285f4] to-[#ae8024]

Triadic

Open in maker →

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

white 3.55 AA largeblack 5.32 AAbanding high

css

linear-gradient(135deg in oklab, #4285f4 0%, #f42e4b 100%)

tailwind v4

bg-linear-to-br/oklab from-[#4285f4] to-[#f42e4b]

Report — brand gradient

white ink: worst 3.55:1 at 4% (AA-large only); black ink: worst 5.34:1 at 100% (AA) → use black text.
Banding medium: ~8px bands at 1440px — add grain 15 (≈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 3.55:1 AA-large, black 5.34:1 AA */
  --brand-gradient: linear-gradient(135deg in oklab, #4285f4 0%, #ea4335 100%);
  /* hero — worst-case contrast: white 4.65:1 AA, black 4.25:1 AA-large; ink passes AA at the worst point */
  --brand-gradient-hero: linear-gradient(135deg in oklab, #5e759b 0%, #9a625a 100%);
  --brand-gradient-hero-ink: #ffffff;
  /* button — worst-case contrast: white 4.57:1 AA, black 3.26:1 AA-large */
  --brand-gradient-button: linear-gradient(180deg in oklch shorter hue, #3072df 0%, #1559c4 100%);
  --brand-gradient-button-hover: linear-gradient(180deg in oklch shorter hue, #397bea 0%, #2062ce 100%);
  --brand-gradient-button-active: linear-gradient(180deg in oklch shorter hue, #2669d5 0%, #0850ba 100%);
  --brand-gradient-button-ink: #ffffff;
  /* button ink: 4.0:1 — below AA */
}

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="#4285f4"/><stop offset="7.14%" stop-color="#5784e8"/><stop offset="14.29%" stop-color="#6883dc"/><stop offset="21.43%" stop-color="#7781d0"/><stop offset="28.57%" stop-color="#847fc4"/><stop offset="35.71%" stop-color="#907cb8"/><stop offset="42.86%" stop-color="#9c79ab"/><stop offset="50%" stop-color="#a7769f"/><stop offset="57.14%" stop-color="#b17192"/><stop offset="64.29%" stop-color="#bc6c85"/><stop offset="71.43%" stop-color="#c56778"/><stop offset="78.57%" stop-color="#cf6069"/><stop offset="85.71%" stop-color="#d8585a"/><stop offset="92.86%" stop-color="#e14f49"/><stop offset="100%" stop-color="#ea4335"/></linearGradient></defs><rect width="1440" height="600" fill="url(#bs-gradient)"/></svg>

dtcg · tokens.json

{
  "gradient": {
    "brand": {
      "$type": "gradient",
      "$value": [
        {
          "color": {
            "colorSpace": "srgb",
            "components": [
              0.259,
              0.522,
              0.957
            ],
            "hex": "#4285f4"
          },
          "position": 0
        },
        {
          "color": {
            "colorSpace": "srgb",
            "components": [
              0.918,
              0.263,
              0.208
            ],
            "hex": "#ea4335"
          },
          "position": 1
        }
      ],
      "$extensions": {
        "com.brandsweets": {
          "kind": "linear",
          "css": "linear-gradient(135deg in oklab, #4285f4 0%, #ea4335 100%)",
          "interpolation": "oklab",
          "angle": 135,
          "name": "brand",
          "contrast": {
            "white": {
              "ratio": 3.548,
              "at": 0.0446,
              "passesAA": false,
              "passesAALarge": true
            },
            "black": {
              "ratio": 5.345,
              "at": 0.9959,
              "passesAA": true,
              "passesAALarge": true
            },
            "suggestedInk": "#000000"
          }
        }
      },
      "$description": "The canonical brand gradient (--brand-gradient)."
    },
    "hero": {
      "$type": "gradient",
      "$value": [
        {
          "color": {
            "colorSpace": "srgb",
            "components": [
              0.369,
              0.459,
              0.608
            ],
            "hex": "#5e759b"
          },
          "position": 0
        },
        {
          "color": {
            "colorSpace": "srgb",
            "components": [
              0.604,
              0.384,
              0.353
            ],
            "hex": "#9a625a"
          },
          "position": 1
        }
      ],
      "$extensions": {
        "com.brandsweets": {
          "kind": "linear",
          "css": "linear-gradient(135deg in oklab, #5e759b 0%, #9a625a 100%)",
          "interpolation": "oklab",
          "angle": 135,
          "name": "hero",
          "ink": "#ffffff",
          "contrast": {
            "white": {
              "ratio": 4.653,
              "at": 0.0395,
              "passesAA": true,
              "passesAALarge": true
            },
            "black": {
              "ratio": 4.253,
              "at": 0.9841,
              "passesAA": false,
              "passesAALarge": true
            },
            "suggestedInk": "#ffffff"
          }
        }
      },
      "$description": "Low-chroma hero background with a text-safe ink (--brand-gradient-hero)."
    },
    "button": {
      "$type": "gradient",
      "$value": [
        {
          "color": {
            "colorSpace": "srgb",
            "components": [
              0.188,
              0.447,
              0.875
            ],
            "hex": "#3072df"
          },
          "position": 0
        },
        {
          "color": {
            "colorSpace": "srgb",
            "components": [
              0.082,
              0.349,
              0.769
            ],
            "hex": "#1559c4"
          },
          "position": 1
        }
      ],
      "$extensions": {
        "com.brandsweets": {
          "kind": "linear",
          "css": "linear-gradient(180deg in oklch shorter hue, #3072df 0%, #1559c4 100%)",
          "interpolation": "oklch",
          "hue": "shorter",
          "angle": 180,
          "name": "button",
          "ink": "#ffffff",
          "states": {
            "hover": "linear-gradient(180deg in oklch shorter hue, #397bea 0%, #2062ce 100%)",
            "active": "linear-gradient(180deg in oklch shorter hue, #2669d5 0%, #0850ba 100%)"
          },
          "contrast": {
            "white": {
              "ratio": 4.567,
              "at": 0,
              "passesAA": true,
              "passesAALarge": true
            },
            "black": {
              "ratio": 3.258,
              "at": 0.9841,
              "passesAA": false,
              "passesAALarge": true
            },
            "suggestedInk": "#ffffff"
          }
        }
      },
      "$description": "Button / CTA surface with hover and active states (--brand-gradient-button)."
    }
  }
}

Colours

#4285f4 #ea4335 #fbbc05

mcpConnect your agent — Google'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 google-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.

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