Brand gradient

PlanetScale gradient

The gradient PlanetScale'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.

Extracted
Version
5
Verified from the live site at planetscale.com on 2 September 2026 (version 5).
PlanetScale
black text · worst 2.98:1 · fails
white 1.76 failsblack 2.98 failsbanding high

Hero and button

Aa

Hero background

Open in maker →

Chroma ×0.35 so it can carry text; ink white (inkFor at the midpoint). L shifted −0.27 until the ink passes AA at the worst point (4.61:1).

white 4.61 AAblack 1.13 failsbanding high
css
linear-gradient(135deg in oklch shorter hue, #8b6f64 0%, #683321 50%, #2d0305 100%)
tailwind v4
bg-linear-to-br/oklch from-[#8b6f64] via-[#683321] to-[#2d0305]
Aa

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 3.80:1). Ink is below AA (3.80:1 at the worst point) — use it for large text only, or pick a darker/lighter primary for buttons.

white 4.31 AA largeblack 3.51 AA largebanding high
Get started
hover
active
label ink below AA — large text only
css
linear-gradient(180deg in oklch shorter hue, #dd4300 0%, #be2900 100%)
tailwind v4
bg-linear-to-b/oklch from-[#dd4300] to-[#be2900]

Variants

Aa
white 1.76 failsblack 2.98 failsbanding high
css
linear-gradient(135deg in oklch shorter hue, #ffb192 0%, #f35815 50%, #ac2200 100%)
tailwind v4
bg-linear-to-br/oklch from-[#ffb192] via-[#f35815] to-[#ac2200]
Aa

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

white 3.37 AA largeblack 6.05 AAbanding high
css
linear-gradient(135deg in oklab, #f35815 0%, #fc3d74 100%)
tailwind v4
bg-linear-to-br/oklab from-[#f35815] to-[#fc3d74]
Aa

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 2.99 failsblack 6.13 AAbanding medium
css
linear-gradient(135deg in oklch shorter hue, #f35815 0%, #1aa2c2 100%)
tailwind v4
bg-linear-to-br/oklch from-[#f35815] to-[#1aa2c2]
Aa

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

white 2.88 failsblack 6.22 AAbanding medium
css
linear-gradient(135deg in oklab, #f35815 0%, #1aad72 100%)
tailwind v4
bg-linear-to-br/oklab from-[#f35815] to-[#1aad72]

Report — brand gradient

  • white ink: worst 1.76:1 at 0% (fails AA); black ink: worst 2.98:1 at 100% (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 high: ~10px bands at 1440px — add grain 21 (≈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 1.76:1, black 2.98:1 */
  --brand-gradient: linear-gradient(135deg in oklch shorter hue, #ffb192 0%, #f35815 50%, #ac2200 100%);
  /* hero — worst-case contrast: white 4.61:1 AA, black 1.13:1; ink passes AA at the worst point */
  --brand-gradient-hero: linear-gradient(135deg in oklch shorter hue, #8b6f64 0%, #683321 50%, #2d0305 100%);
  --brand-gradient-hero-ink: #ffffff;
  /* button — worst-case contrast: white 4.31:1 AA-large, black 3.51:1 AA-large */
  --brand-gradient-button: linear-gradient(180deg in oklch shorter hue, #dd4300 0%, #be2900 100%);
  --brand-gradient-button-hover: linear-gradient(180deg in oklch shorter hue, #e84e00 0%, #cb3000 100%);
  --brand-gradient-button-active: linear-gradient(180deg in oklch shorter hue, #d33800 0%, #b02400 100%);
  --brand-gradient-button-ink: #ffffff;
  /* button ink: 3.8:1 — 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="#ffb192"/><stop offset="3.57%" stop-color="#ffab8a"/><stop offset="7.14%" stop-color="#fea683"/><stop offset="10.71%" stop-color="#fea07b"/><stop offset="14.29%" stop-color="#fd9a74"/><stop offset="17.86%" stop-color="#fc946c"/><stop offset="21.43%" stop-color="#fb8e64"/><stop offset="25%" stop-color="#fb885c"/><stop offset="28.57%" stop-color="#fa8154"/><stop offset="32.14%" stop-color="#f97b4c"/><stop offset="35.71%" stop-color="#f87543"/><stop offset="39.29%" stop-color="#f76e3a"/><stop offset="42.86%" stop-color="#f66730"/><stop offset="46.43%" stop-color="#f46024"/><stop offset="50%" stop-color="#f35815"/><stop offset="53.57%" stop-color="#ee5414"/><stop offset="57.14%" stop-color="#e95012"/><stop offset="60.71%" stop-color="#e44d11"/><stop offset="64.29%" stop-color="#de490f"/><stop offset="67.86%" stop-color="#d9450e"/><stop offset="71.43%" stop-color="#d4410c"/><stop offset="75%" stop-color="#cf3e0a"/><stop offset="78.57%" stop-color="#ca3a09"/><stop offset="82.14%" stop-color="#c53607"/><stop offset="85.71%" stop-color="#c03205"/><stop offset="89.29%" stop-color="#bb2e04"/><stop offset="92.86%" stop-color="#b62a03"/><stop offset="96.43%" stop-color="#b12601"/><stop offset="100%" stop-color="#ac2200"/></linearGradient></defs><rect width="1440" height="600" fill="url(#bs-gradient)"/></svg>
dtcg · tokens.json
{
  "gradient": {
    "brand": {
      "$type": "gradient",
      "$value": [
        {
          "color": {
            "colorSpace": "srgb",
            "components": [
              1,
              0.694,
              0.573
            ],
            "hex": "#ffb192"
          },
          "position": 0
        },
        {
          "color": {
            "colorSpace": "srgb",
            "components": [
              0.953,
              0.345,
              0.082
            ],
            "hex": "#f35815"
          },
          "position": 0.5
        },
        {
          "color": {
            "colorSpace": "srgb",
            "components": [
              0.675,
              0.133,
              0
            ],
            "hex": "#ac2200"
          },
          "position": 1
        }
      ],
      "$extensions": {
        "com.brandsweets": {
          "kind": "linear",
          "css": "linear-gradient(135deg in oklch shorter hue, #ffb192 0%, #f35815 50%, #ac2200 100%)",
          "interpolation": "oklch",
          "hue": "shorter",
          "angle": 135,
          "name": "brand",
          "contrast": {
            "white": {
              "ratio": 1.756,
              "at": 0,
              "passesAA": false,
              "passesAALarge": false
            },
            "black": {
              "ratio": 2.983,
              "at": 1,
              "passesAA": false,
              "passesAALarge": false
            },
            "suggestedInk": "#000000"
          }
        }
      },
      "$description": "The canonical brand gradient (--brand-gradient)."
    },
    "hero": {
      "$type": "gradient",
      "$value": [
        {
          "color": {
            "colorSpace": "srgb",
            "components": [
              0.545,
              0.435,
              0.392
            ],
            "hex": "#8b6f64"
          },
          "position": 0
        },
        {
          "color": {
            "colorSpace": "srgb",
            "components": [
              0.408,
              0.2,
              0.129
            ],
            "hex": "#683321"
          },
          "position": 0.5
        },
        {
          "color": {
            "colorSpace": "srgb",
            "components": [
              0.176,
              0.012,
              0.02
            ],
            "hex": "#2d0305"
          },
          "position": 1
        }
      ],
      "$extensions": {
        "com.brandsweets": {
          "kind": "linear",
          "css": "linear-gradient(135deg in oklch shorter hue, #8b6f64 0%, #683321 50%, #2d0305 100%)",
          "interpolation": "oklch",
          "hue": "shorter",
          "angle": 135,
          "name": "hero",
          "ink": "#ffffff",
          "contrast": {
            "white": {
              "ratio": 4.61,
              "at": 0,
              "passesAA": true,
              "passesAALarge": true
            },
            "black": {
              "ratio": 1.127,
              "at": 1,
              "passesAA": false,
              "passesAALarge": false
            },
            "suggestedInk": "#ffffff"
          }
        }
      },
      "$description": "Low-chroma hero background with a text-safe ink (--brand-gradient-hero)."
    },
    "button": {
      "$type": "gradient",
      "$value": [
        {
          "color": {
            "colorSpace": "srgb",
            "components": [
              0.867,
              0.263,
              0
            ],
            "hex": "#dd4300"
          },
          "position": 0
        },
        {
          "color": {
            "colorSpace": "srgb",
            "components": [
              0.745,
              0.161,
              0
            ],
            "hex": "#be2900"
          },
          "position": 1
        }
      ],
      "$extensions": {
        "com.brandsweets": {
          "kind": "linear",
          "css": "linear-gradient(180deg in oklch shorter hue, #dd4300 0%, #be2900 100%)",
          "interpolation": "oklch",
          "hue": "shorter",
          "angle": 180,
          "name": "button",
          "ink": "#ffffff",
          "states": {
            "hover": "linear-gradient(180deg in oklch shorter hue, #e84e00 0%, #cb3000 100%)",
            "active": "linear-gradient(180deg in oklch shorter hue, #d33800 0%, #b02400 100%)"
          },
          "contrast": {
            "white": {
              "ratio": 4.306,
              "at": 0,
              "passesAA": false,
              "passesAALarge": true
            },
            "black": {
              "ratio": 3.507,
              "at": 0.9841,
              "passesAA": false,
              "passesAALarge": true
            },
            "suggestedInk": "#ffffff"
          }
        }
      },
      "$description": "Button / CTA surface with hover and active states (--brand-gradient-button)."
    }
  }
}

Colours

mcpConnect your agent — PlanetScale'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 planetscale-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.

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