Brand gradient

Warner Bros. gradient

The gradient Warner Bros.'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.

#1a1a1a #3860be #fec200

Open in the maker Warner Bros. colors →Full brand page →media

Source: warnerbros.com
Extracted: 2 September 2026
Version: 4

Warner Bros.

white text · worst 5.86:1 · AA

white 5.86 AAblack 1.21 failsbanding medium

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 (5.69:1) without adjusting L.

white 5.69 AAblack 1.21 failsbanding medium

css

linear-gradient(135deg in oklab, #1a1a1a 0%, #576786 100%)

tailwind v4

bg-linear-to-br/oklab from-[#1a1a1a] to-[#576786]

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. White ink passes AA on the surface and both states (worst 14.16:1).

white 15.72 AAblack 1.11 failsbanding high

Get started

hover

active

label ink passes AA on all three

css

linear-gradient(180deg in oklch shorter hue, #232323 0%, #111111 100%)

tailwind v4

bg-linear-to-b/oklch from-[#232323] to-[#111111]

Variants

Tonal ramp

Open in maker →

white 9.29 AAblack 1.00 failsbanding medium

css

linear-gradient(135deg in oklch shorter hue, #474747 0%, #1a1a1a 50%, #000000 100%)

tailwind v4

bg-linear-to-br/oklch from-[#474747] via-[#1a1a1a] to-[#000000]

Analogous

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Primary #1a1a1a is achromatic — harmony rotates #3860be instead. Partner hue from the analogous rule at the source colour's lightness.

white 5.58 AAblack 3.57 AA largebanding high

css

linear-gradient(135deg in oklab, #3860be 0%, #426d84 100%)

tailwind v4

bg-linear-to-br/oklab from-[#3860be] to-[#426d84]

Complementary

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Primary #1a1a1a is achromatic — harmony rotates #3860be 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 5.69 AAblack 3.43 AA largebanding high

css

linear-gradient(135deg in oklch shorter hue, #3860be 0%, #77643e 100%)

tailwind v4

bg-linear-to-br/oklch from-[#3860be] to-[#77643e]

Triadic

Open in maker →

Primary #1a1a1a is achromatic — harmony rotates #3860be instead. Partner hue from the triadic rule at the source colour's lightness.

white 5.81 AAblack 3.48 AA largebanding high

css

linear-gradient(135deg in oklab, #3860be 0%, #9f4844 100%)

tailwind v4

bg-linear-to-br/oklab from-[#3860be] to-[#9f4844]

Report — brand gradient

white ink: worst 5.86:1 at 100% (AA); black ink: worst 1.21:1 at 0% (fails AA) → use white text.
Banding medium: ~9px bands at 1440px — add grain 18 (≈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 5.86:1 AA, black 1.21:1 */
  --brand-gradient: linear-gradient(135deg in oklab, #1a1a1a 0%, #3860be 100%);
  /* hero — worst-case contrast: white 5.69:1 AA, black 1.21:1; ink passes AA at the worst point */
  --brand-gradient-hero: linear-gradient(135deg in oklab, #1a1a1a 0%, #576786 100%);
  --brand-gradient-hero-ink: #ffffff;
  /* button — worst-case contrast: white 15.72:1 AA, black 1.11:1 */
  --brand-gradient-button: linear-gradient(180deg in oklch shorter hue, #232323 0%, #111111 100%);
  --brand-gradient-button-hover: linear-gradient(180deg in oklch shorter hue, #2b2b2b 0%, #181818 100%);
  --brand-gradient-button-active: linear-gradient(180deg in oklch shorter hue, #1c1c1c 0%, #0b0b0b 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="#1a1a1a"/><stop offset="7.14%" stop-color="#1c1f24"/><stop offset="14.29%" stop-color="#1f242f"/><stop offset="21.43%" stop-color="#21293a"/><stop offset="28.57%" stop-color="#232e45"/><stop offset="35.71%" stop-color="#253350"/><stop offset="42.86%" stop-color="#27385b"/><stop offset="50%" stop-color="#293d67"/><stop offset="57.14%" stop-color="#2c4273"/><stop offset="64.29%" stop-color="#2e477f"/><stop offset="71.43%" stop-color="#304c8b"/><stop offset="78.57%" stop-color="#325198"/><stop offset="85.71%" stop-color="#3456a4"/><stop offset="92.86%" stop-color="#365bb1"/><stop offset="100%" stop-color="#3860be"/></linearGradient></defs><rect width="1440" height="600" fill="url(#bs-gradient)"/></svg>

dtcg · tokens.json

{
  "gradient": {
    "brand": {
      "$type": "gradient",
      "$value": [
        {
          "color": {
            "colorSpace": "srgb",
            "components": [
              0.102,
              0.102,
              0.102
            ],
            "hex": "#1a1a1a"
          },
          "position": 0
        },
        {
          "color": {
            "colorSpace": "srgb",
            "components": [
              0.22,
              0.376,
              0.745
            ],
            "hex": "#3860be"
          },
          "position": 1
        }
      ],
      "$extensions": {
        "com.brandsweets": {
          "kind": "linear",
          "css": "linear-gradient(135deg in oklab, #1a1a1a 0%, #3860be 100%)",
          "interpolation": "oklab",
          "angle": 135,
          "name": "brand",
          "contrast": {
            "white": {
              "ratio": 5.858,
              "at": 1,
              "passesAA": true,
              "passesAALarge": true
            },
            "black": {
              "ratio": 1.207,
              "at": 0,
              "passesAA": false,
              "passesAALarge": false
            },
            "suggestedInk": "#ffffff"
          }
        }
      },
      "$description": "The canonical brand gradient (--brand-gradient)."
    },
    "hero": {
      "$type": "gradient",
      "$value": [
        {
          "color": {
            "colorSpace": "srgb",
            "components": [
              0.102,
              0.102,
              0.102
            ],
            "hex": "#1a1a1a"
          },
          "position": 0
        },
        {
          "color": {
            "colorSpace": "srgb",
            "components": [
              0.341,
              0.404,
              0.525
            ],
            "hex": "#576786"
          },
          "position": 1
        }
      ],
      "$extensions": {
        "com.brandsweets": {
          "kind": "linear",
          "css": "linear-gradient(135deg in oklab, #1a1a1a 0%, #576786 100%)",
          "interpolation": "oklab",
          "angle": 135,
          "name": "hero",
          "ink": "#ffffff",
          "contrast": {
            "white": {
              "ratio": 5.692,
              "at": 1,
              "passesAA": true,
              "passesAALarge": true
            },
            "black": {
              "ratio": 1.207,
              "at": 0,
              "passesAA": false,
              "passesAALarge": false
            },
            "suggestedInk": "#ffffff"
          }
        }
      },
      "$description": "Low-chroma hero background with a text-safe ink (--brand-gradient-hero)."
    },
    "button": {
      "$type": "gradient",
      "$value": [
        {
          "color": {
            "colorSpace": "srgb",
            "components": [
              0.137,
              0.137,
              0.137
            ],
            "hex": "#232323"
          },
          "position": 0
        },
        {
          "color": {
            "colorSpace": "srgb",
            "components": [
              0.067,
              0.067,
              0.067
            ],
            "hex": "#111111"
          },
          "position": 1
        }
      ],
      "$extensions": {
        "com.brandsweets": {
          "kind": "linear",
          "css": "linear-gradient(180deg in oklch shorter hue, #232323 0%, #111111 100%)",
          "interpolation": "oklch",
          "hue": "shorter",
          "angle": 180,
          "name": "button",
          "ink": "#ffffff",
          "states": {
            "hover": "linear-gradient(180deg in oklch shorter hue, #2b2b2b 0%, #181818 100%)",
            "active": "linear-gradient(180deg in oklch shorter hue, #1c1c1c 0%, #0b0b0b 100%)"
          },
          "contrast": {
            "white": {
              "ratio": 15.717,
              "at": 0,
              "passesAA": true,
              "passesAALarge": true
            },
            "black": {
              "ratio": 1.112,
              "at": 0.9841,
              "passesAA": false,
              "passesAALarge": false
            },
            "suggestedInk": "#ffffff"
          }
        }
      },
      "$description": "Button / CTA surface with hover and active states (--brand-gradient-button)."
    }
  }
}

Colours

#1a1a1a #3860be #fec200

mcpConnect your agent — Warner Bros.'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 warnerbros-com — give me the hero CSS and the ink that passes AA, then a version in oklch

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