Brand gradient

Deno gradient

The gradient Deno'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.

#6639ba #70ffaf

Open in the maker Deno colors →Full brand page →

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

Deno

black text · worst 2.86:1 · fails

white 1.26 failsblack 2.86 failsbanding medium

Hero and button

Hero background

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Chroma ×0.35 so it can carry text; ink black (inkFor at the midpoint). L shifted +0.09 until the ink passes AA at the worst point (4.59:1).

white 1.08 failsblack 4.59 AAbanding medium

css

linear-gradient(135deg in oklab, #797099 0%, #dbffe9 100%)

tailwind v4

bg-linear-to-br/oklab from-[#797099] to-[#dbffe9]

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 5.40:1).

white 6.17 AAblack 2.39 failsbanding high

Get started

hover

active

label ink passes AA on all three

css

linear-gradient(180deg in oklch shorter hue, #7146c7 0%, #5b2bad 100%)

tailwind v4

bg-linear-to-b/oklch from-[#7146c7] to-[#5b2bad]

Variants

Tonal ramp

Open in maker →

white 3.41 AA largeblack 1.46 failsbanding high

css

linear-gradient(135deg in oklch shorter hue, #9973f8 0%, #6639ba 50%, #38007d 100%)

tailwind v4

bg-linear-to-br/oklch from-[#9973f8] via-[#6639ba] to-[#38007d]

Analogous

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

white 7.00 AAblack 2.85 failsbanding high

css

linear-gradient(135deg in oklab, #6639ba 0%, #1f4fc6 100%)

tailwind v4

bg-linear-to-br/oklab from-[#6639ba] to-[#1f4fc6]

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 6.55 AAblack 2.83 failsbanding high

css

linear-gradient(135deg in oklch shorter hue, #6639ba 0%, #5c612a 100%)

tailwind v4

bg-linear-to-br/oklch from-[#6639ba] to-[#5c612a]

Triadic

Open in maker →

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

white 6.90 AAblack 2.85 failsbanding high

css

linear-gradient(135deg in oklab, #6639ba 0%, #814d29 100%)

tailwind v4

bg-linear-to-br/oklab from-[#6639ba] to-[#814d29]

Report — brand gradient

white ink: worst 1.26:1 at 100% (fails AA); black ink: worst 2.86:1 at 0% (fails AA) → use black text.
Neither ink passes AA at the worst point — treat as decorative or add a scrim (rgba(0,0,0,.35) typically lifts white ink past 4:1).
Banding medium: ~7px bands at 1440px — add grain 14 (≈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 1.26:1, black 2.86:1 */
  --brand-gradient: linear-gradient(135deg in oklab, #6639ba 0%, #70ffaf 100%);
  /* hero — worst-case contrast: white 1.08:1, black 4.59:1 AA; ink passes AA at the worst point */
  --brand-gradient-hero: linear-gradient(135deg in oklab, #797099 0%, #dbffe9 100%);
  --brand-gradient-hero-ink: #000000;
  /* button — worst-case contrast: white 6.17:1 AA, black 2.39:1 */
  --brand-gradient-button: linear-gradient(180deg in oklch shorter hue, #7146c7 0%, #5b2bad 100%);
  --brand-gradient-button-hover: linear-gradient(180deg in oklch shorter hue, #7950d2 0%, #6336b7 100%);
  --brand-gradient-button-active: linear-gradient(180deg in oklch shorter hue, #693cbd 0%, #5420a3 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="#6639ba"/><stop offset="7.14%" stop-color="#684bbb"/><stop offset="14.29%" stop-color="#6b5bbc"/><stop offset="21.43%" stop-color="#6d6abd"/><stop offset="28.57%" stop-color="#6e79be"/><stop offset="35.71%" stop-color="#7087be"/><stop offset="42.86%" stop-color="#7194be"/><stop offset="50%" stop-color="#72a2be"/><stop offset="57.14%" stop-color="#73afbd"/><stop offset="64.29%" stop-color="#73bcbc"/><stop offset="71.43%" stop-color="#73caba"/><stop offset="78.57%" stop-color="#73d7b8"/><stop offset="85.71%" stop-color="#72e4b6"/><stop offset="92.86%" stop-color="#71f2b3"/><stop offset="100%" stop-color="#70ffaf"/></linearGradient></defs><rect width="1440" height="600" fill="url(#bs-gradient)"/></svg>

dtcg · tokens.json

{
  "gradient": {
    "brand": {
      "$type": "gradient",
      "$value": [
        {
          "color": {
            "colorSpace": "srgb",
            "components": [
              0.4,
              0.224,
              0.729
            ],
            "hex": "#6639ba"
          },
          "position": 0
        },
        {
          "color": {
            "colorSpace": "srgb",
            "components": [
              0.439,
              1,
              0.686
            ],
            "hex": "#70ffaf"
          },
          "position": 1
        }
      ],
      "$extensions": {
        "com.brandsweets": {
          "kind": "linear",
          "css": "linear-gradient(135deg in oklab, #6639ba 0%, #70ffaf 100%)",
          "interpolation": "oklab",
          "angle": 135,
          "name": "brand",
          "contrast": {
            "white": {
              "ratio": 1.264,
              "at": 1,
              "passesAA": false,
              "passesAALarge": false
            },
            "black": {
              "ratio": 2.859,
              "at": 0,
              "passesAA": false,
              "passesAALarge": false
            },
            "suggestedInk": "#000000"
          }
        }
      },
      "$description": "The canonical brand gradient (--brand-gradient)."
    },
    "hero": {
      "$type": "gradient",
      "$value": [
        {
          "color": {
            "colorSpace": "srgb",
            "components": [
              0.475,
              0.439,
              0.6
            ],
            "hex": "#797099"
          },
          "position": 0
        },
        {
          "color": {
            "colorSpace": "srgb",
            "components": [
              0.859,
              1,
              0.914
            ],
            "hex": "#dbffe9"
          },
          "position": 1
        }
      ],
      "$extensions": {
        "com.brandsweets": {
          "kind": "linear",
          "css": "linear-gradient(135deg in oklab, #797099 0%, #dbffe9 100%)",
          "interpolation": "oklab",
          "angle": 135,
          "name": "hero",
          "ink": "#000000",
          "contrast": {
            "white": {
              "ratio": 1.077,
              "at": 1,
              "passesAA": false,
              "passesAALarge": false
            },
            "black": {
              "ratio": 4.591,
              "at": 0,
              "passesAA": true,
              "passesAALarge": true
            },
            "suggestedInk": "#000000"
          }
        }
      },
      "$description": "Low-chroma hero background with a text-safe ink (--brand-gradient-hero)."
    },
    "button": {
      "$type": "gradient",
      "$value": [
        {
          "color": {
            "colorSpace": "srgb",
            "components": [
              0.443,
              0.275,
              0.78
            ],
            "hex": "#7146c7"
          },
          "position": 0
        },
        {
          "color": {
            "colorSpace": "srgb",
            "components": [
              0.357,
              0.169,
              0.678
            ],
            "hex": "#5b2bad"
          },
          "position": 1
        }
      ],
      "$extensions": {
        "com.brandsweets": {
          "kind": "linear",
          "css": "linear-gradient(180deg in oklch shorter hue, #7146c7 0%, #5b2bad 100%)",
          "interpolation": "oklch",
          "hue": "shorter",
          "angle": 180,
          "name": "button",
          "ink": "#ffffff",
          "states": {
            "hover": "linear-gradient(180deg in oklch shorter hue, #7950d2 0%, #6336b7 100%)",
            "active": "linear-gradient(180deg in oklch shorter hue, #693cbd 0%, #5420a3 100%)"
          },
          "contrast": {
            "white": {
              "ratio": 6.171,
              "at": 0,
              "passesAA": true,
              "passesAALarge": true
            },
            "black": {
              "ratio": 2.394,
              "at": 0.9841,
              "passesAA": false,
              "passesAALarge": false
            },
            "suggestedInk": "#ffffff"
          }
        }
      },
      "$description": "Button / CTA surface with hover and active states (--brand-gradient-button)."
    }
  }
}

Colours

#6639ba #70ffaf

mcpConnect your agent — Deno'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 deno-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.

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