Brand gradient

PostHog gradient

The gradient PostHog'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.

#007aff #2f80fa #f7a501

Open in the maker PostHog colors →Full brand page →

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

PostHog

black text · worst 2.46:1 · fails

white 2.02 failsblack 2.46 failsbanding high

Hero and button

Hero background

Open in maker →

Chroma ×0.35 so it can carry text; ink white (inkFor at the midpoint). L shifted −0.22 until the ink passes AA at the worst point (4.65:1).

white 4.65 AAblack 1.12 failsbanding high

css

linear-gradient(135deg in oklch shorter hue, #63768e 0%, #22416d 50%, #070e35 100%)

tailwind v4

bg-linear-to-br/oklch from-[#63768e] via-[#22416d] to-[#070e35]

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 passes AA on the surface and both states (worst 4.54:1).

white 5.14 AAblack 2.92 failsbanding high

Get started

hover

active

label ink passes AA on all three

css

linear-gradient(180deg in oklch shorter hue, #0066ea 0%, #004cce 100%)

tailwind v4

bg-linear-to-b/oklch from-[#0066ea] to-[#004cce]

Variants

Tonal ramp

Open in maker →

white 2.02 failsblack 2.46 failsbanding high

css

linear-gradient(135deg in oklch shorter hue, #80baff 0%, #007aff 50%, #0040bc 100%)

tailwind v4

bg-linear-to-br/oklch from-[#80baff] via-[#007aff] to-[#0040bc]

Analogous

Open in maker →

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

white 3.77 AA largeblack 5.21 AAbanding high

css

linear-gradient(135deg in oklab, #007aff 0%, #008eb7 100%)

tailwind v4

bg-linear-to-br/oklab from-[#007aff] to-[#008eb7]

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 4.00 AA largeblack 4.86 AAbanding medium

css

linear-gradient(135deg in oklch shorter hue, #007aff 0%, #aa7500 100%)

tailwind v4

bg-linear-to-br/oklch from-[#007aff] to-[#aa7500]

Triadic

Open in maker →

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

white 4.00 AA largeblack 4.71 AAbanding medium

css

linear-gradient(135deg in oklab, #007aff 0%, #ee0048 100%)

tailwind v4

bg-linear-to-br/oklab from-[#007aff] to-[#ee0048]

Report — brand gradient

white ink: worst 2.02:1 at 0% (fails AA); black ink: worst 2.46:1 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: ~11px bands at 1440px — add grain 22 (≈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 2.02:1, black 2.46:1 */
  --brand-gradient: linear-gradient(135deg in oklch shorter hue, #80baff 0%, #007aff 50%, #0040bc 100%);
  /* hero — worst-case contrast: white 4.65:1 AA, black 1.12:1; ink passes AA at the worst point */
  --brand-gradient-hero: linear-gradient(135deg in oklch shorter hue, #63768e 0%, #22416d 50%, #070e35 100%);
  --brand-gradient-hero-ink: #ffffff;
  /* button — worst-case contrast: white 5.14:1 AA, black 2.92:1 */
  --brand-gradient-button: linear-gradient(180deg in oklch shorter hue, #0066ea 0%, #004cce 100%);
  --brand-gradient-button-hover: linear-gradient(180deg in oklch shorter hue, #0070f4 0%, #0056d8 100%);
  --brand-gradient-button-active: linear-gradient(180deg in oklch shorter hue, #005cdf 0%, #0043c1 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="#80baff"/><stop offset="3.57%" stop-color="#79b6ff"/><stop offset="7.14%" stop-color="#72b2ff"/><stop offset="10.71%" stop-color="#6aadff"/><stop offset="14.29%" stop-color="#63a9ff"/><stop offset="17.86%" stop-color="#5ba5ff"/><stop offset="21.43%" stop-color="#54a0ff"/><stop offset="25%" stop-color="#4c9cff"/><stop offset="28.57%" stop-color="#4497ff"/><stop offset="32.14%" stop-color="#3c93ff"/><stop offset="35.71%" stop-color="#348eff"/><stop offset="39.29%" stop-color="#2b89ff"/><stop offset="42.86%" stop-color="#2084ff"/><stop offset="46.43%" stop-color="#147fff"/><stop offset="50%" stop-color="#007aff"/><stop offset="53.57%" stop-color="#0076fa"/><stop offset="57.14%" stop-color="#0072f5"/><stop offset="60.71%" stop-color="#006df0"/><stop offset="64.29%" stop-color="#0069ec"/><stop offset="67.86%" stop-color="#0065e7"/><stop offset="71.43%" stop-color="#0061e2"/><stop offset="75%" stop-color="#005ddd"/><stop offset="78.57%" stop-color="#0059d8"/><stop offset="82.14%" stop-color="#0055d4"/><stop offset="85.71%" stop-color="#0051cf"/><stop offset="89.29%" stop-color="#004cca"/><stop offset="92.86%" stop-color="#0048c5"/><stop offset="96.43%" stop-color="#0044c1"/><stop offset="100%" stop-color="#0040bc"/></linearGradient></defs><rect width="1440" height="600" fill="url(#bs-gradient)"/></svg>

dtcg · tokens.json

{
  "gradient": {
    "brand": {
      "$type": "gradient",
      "$value": [
        {
          "color": {
            "colorSpace": "srgb",
            "components": [
              0.502,
              0.729,
              1
            ],
            "hex": "#80baff"
          },
          "position": 0
        },
        {
          "color": {
            "colorSpace": "srgb",
            "components": [
              0,
              0.478,
              1
            ],
            "hex": "#007aff"
          },
          "position": 0.5
        },
        {
          "color": {
            "colorSpace": "srgb",
            "components": [
              0,
              0.251,
              0.737
            ],
            "hex": "#0040bc"
          },
          "position": 1
        }
      ],
      "$extensions": {
        "com.brandsweets": {
          "kind": "linear",
          "css": "linear-gradient(135deg in oklch shorter hue, #80baff 0%, #007aff 50%, #0040bc 100%)",
          "interpolation": "oklch",
          "hue": "shorter",
          "angle": 135,
          "name": "brand",
          "contrast": {
            "white": {
              "ratio": 2.022,
              "at": 0,
              "passesAA": false,
              "passesAALarge": false
            },
            "black": {
              "ratio": 2.46,
              "at": 1,
              "passesAA": false,
              "passesAALarge": false
            },
            "suggestedInk": "#000000"
          }
        }
      },
      "$description": "The canonical brand gradient (--brand-gradient)."
    },
    "hero": {
      "$type": "gradient",
      "$value": [
        {
          "color": {
            "colorSpace": "srgb",
            "components": [
              0.388,
              0.463,
              0.557
            ],
            "hex": "#63768e"
          },
          "position": 0
        },
        {
          "color": {
            "colorSpace": "srgb",
            "components": [
              0.133,
              0.255,
              0.427
            ],
            "hex": "#22416d"
          },
          "position": 0.5
        },
        {
          "color": {
            "colorSpace": "srgb",
            "components": [
              0.027,
              0.055,
              0.208
            ],
            "hex": "#070e35"
          },
          "position": 1
        }
      ],
      "$extensions": {
        "com.brandsweets": {
          "kind": "linear",
          "css": "linear-gradient(135deg in oklch shorter hue, #63768e 0%, #22416d 50%, #070e35 100%)",
          "interpolation": "oklch",
          "hue": "shorter",
          "angle": 135,
          "name": "hero",
          "ink": "#ffffff",
          "contrast": {
            "white": {
              "ratio": 4.654,
              "at": 0,
              "passesAA": true,
              "passesAALarge": true
            },
            "black": {
              "ratio": 1.123,
              "at": 1,
              "passesAA": false,
              "passesAALarge": false
            },
            "suggestedInk": "#ffffff"
          }
        }
      },
      "$description": "Low-chroma hero background with a text-safe ink (--brand-gradient-hero)."
    },
    "button": {
      "$type": "gradient",
      "$value": [
        {
          "color": {
            "colorSpace": "srgb",
            "components": [
              0,
              0.4,
              0.918
            ],
            "hex": "#0066ea"
          },
          "position": 0
        },
        {
          "color": {
            "colorSpace": "srgb",
            "components": [
              0,
              0.298,
              0.808
            ],
            "hex": "#004cce"
          },
          "position": 1
        }
      ],
      "$extensions": {
        "com.brandsweets": {
          "kind": "linear",
          "css": "linear-gradient(180deg in oklch shorter hue, #0066ea 0%, #004cce 100%)",
          "interpolation": "oklch",
          "hue": "shorter",
          "angle": 180,
          "name": "button",
          "ink": "#ffffff",
          "states": {
            "hover": "linear-gradient(180deg in oklch shorter hue, #0070f4 0%, #0056d8 100%)",
            "active": "linear-gradient(180deg in oklch shorter hue, #005cdf 0%, #0043c1 100%)"
          },
          "contrast": {
            "white": {
              "ratio": 5.136,
              "at": 0,
              "passesAA": true,
              "passesAALarge": true
            },
            "black": {
              "ratio": 2.925,
              "at": 0.9841,
              "passesAA": false,
              "passesAALarge": false
            },
            "suggestedInk": "#ffffff"
          }
        }
      },
      "$description": "Button / CTA surface with hover and active states (--brand-gradient-button)."
    }
  }
}

Colours

#007aff #2f80fa #f7a501

mcpConnect your agent — PostHog'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 posthog-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.

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