Brand gradient
AT&T gradient
The gradient AT&T'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.
- Source
- att.com
- Extracted
- Version
- 4
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 (5.18:1) without adjusting L.
linear-gradient(135deg in oklab, #202325 0%, #567085 100%)
bg-linear-to-br/oklab from-[#202325] to-[#567085]
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. White ink passes AA on the surface and both states (worst 12.57:1).
linear-gradient(180deg in oklch shorter hue, #272d33 0%, #141a1f 100%)
bg-linear-to-b/oklch from-[#272d33] to-[#141a1f]
Variants
Tonal ramp
Open in maker →linear-gradient(135deg in oklch shorter hue, #4b5158 0%, #1d2329 50%, #000103 100%)
bg-linear-to-br/oklch from-[#4b5158] via-[#1d2329] to-[#000103]
Analogous
Open in maker →Partner hue from the analogous rule at the source colour's lightness.
linear-gradient(135deg in oklab, #1d2329 0%, #1d2325 100%)
bg-linear-to-br/oklab from-[#1d2329] to-[#1d2325]
Complementary
Open in maker →Partner hue from the complementary rule at the source colour's lightness. ΔH 179° > 140° — interpolating in oklch (shorter hue) keeps the midpoint saturated.
linear-gradient(135deg in oklch shorter hue, #1d2329 0%, #26211c 100%)
bg-linear-to-br/oklch from-[#1d2329] to-[#26211c]
Triadic
Open in maker →Partner hue from the triadic rule at the source colour's lightness.
linear-gradient(135deg in oklab, #1d2329 0%, #2b1e20 100%)
bg-linear-to-br/oklab from-[#1d2329] to-[#2b1e20]
Report — brand gradient
- white ink: worst 5.18:1 at 100% (AA); black ink: worst 1.32:1 at 0% (fails AA) → use white text.
- Banding medium: ~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.
:root {
/* Brand gradient (derived) */
/* worst-case contrast: white 5.18:1 AA, black 1.32:1 */
--brand-gradient: linear-gradient(135deg in oklab, #1d2329 0%, #0072b2 100%);
/* hero — worst-case contrast: white 5.18:1 AA, black 1.33:1; ink passes AA at the worst point */
--brand-gradient-hero: linear-gradient(135deg in oklab, #202325 0%, #567085 100%);
--brand-gradient-hero-ink: #ffffff;
/* button — worst-case contrast: white 13.91:1 AA, black 1.20:1 */
--brand-gradient-button: linear-gradient(180deg in oklch shorter hue, #272d33 0%, #141a1f 100%);
--brand-gradient-button-hover: linear-gradient(180deg in oklch shorter hue, #2e343b 0%, #1b2127 100%);
--brand-gradient-button-active: linear-gradient(180deg in oklch shorter hue, #1f252b 0%, #0d1318 100%);
--brand-gradient-button-ink: #ffffff;
}<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="#1d2329"/><stop offset="7.14%" stop-color="#1e2832"/><stop offset="14.29%" stop-color="#1f2e3b"/><stop offset="21.43%" stop-color="#203344"/><stop offset="28.57%" stop-color="#20394d"/><stop offset="35.71%" stop-color="#203e56"/><stop offset="42.86%" stop-color="#1f4460"/><stop offset="50%" stop-color="#1f496a"/><stop offset="57.14%" stop-color="#1e4f74"/><stop offset="64.29%" stop-color="#1c557e"/><stop offset="71.43%" stop-color="#1a5a88"/><stop offset="78.57%" stop-color="#166092"/><stop offset="85.71%" stop-color="#12669d"/><stop offset="92.86%" stop-color="#0a6ca7"/><stop offset="100%" stop-color="#0072b2"/></linearGradient></defs><rect width="1440" height="600" fill="url(#bs-gradient)"/></svg>
{
"gradient": {
"brand": {
"$type": "gradient",
"$value": [
{
"color": {
"colorSpace": "srgb",
"components": [
0.114,
0.137,
0.161
],
"hex": "#1d2329"
},
"position": 0
},
{
"color": {
"colorSpace": "srgb",
"components": [
0,
0.447,
0.698
],
"hex": "#0072b2"
},
"position": 1
}
],
"$extensions": {
"com.brandsweets": {
"kind": "linear",
"css": "linear-gradient(135deg in oklab, #1d2329 0%, #0072b2 100%)",
"interpolation": "oklab",
"angle": 135,
"name": "brand",
"contrast": {
"white": {
"ratio": 5.185,
"at": 1,
"passesAA": true,
"passesAALarge": true
},
"black": {
"ratio": 1.325,
"at": 0,
"passesAA": false,
"passesAALarge": false
},
"suggestedInk": "#ffffff"
}
}
},
"$description": "The canonical brand gradient (--brand-gradient)."
},
"hero": {
"$type": "gradient",
"$value": [
{
"color": {
"colorSpace": "srgb",
"components": [
0.125,
0.137,
0.145
],
"hex": "#202325"
},
"position": 0
},
{
"color": {
"colorSpace": "srgb",
"components": [
0.337,
0.439,
0.522
],
"hex": "#567085"
},
"position": 1
}
],
"$extensions": {
"com.brandsweets": {
"kind": "linear",
"css": "linear-gradient(135deg in oklab, #202325 0%, #567085 100%)",
"interpolation": "oklab",
"angle": 135,
"name": "hero",
"ink": "#ffffff",
"contrast": {
"white": {
"ratio": 5.183,
"at": 1,
"passesAA": true,
"passesAALarge": true
},
"black": {
"ratio": 1.329,
"at": 0,
"passesAA": false,
"passesAALarge": false
},
"suggestedInk": "#ffffff"
}
}
},
"$description": "Low-chroma hero background with a text-safe ink (--brand-gradient-hero)."
},
"button": {
"$type": "gradient",
"$value": [
{
"color": {
"colorSpace": "srgb",
"components": [
0.153,
0.176,
0.2
],
"hex": "#272d33"
},
"position": 0
},
{
"color": {
"colorSpace": "srgb",
"components": [
0.078,
0.102,
0.122
],
"hex": "#141a1f"
},
"position": 1
}
],
"$extensions": {
"com.brandsweets": {
"kind": "linear",
"css": "linear-gradient(180deg in oklch shorter hue, #272d33 0%, #141a1f 100%)",
"interpolation": "oklch",
"hue": "shorter",
"angle": 180,
"name": "button",
"ink": "#ffffff",
"states": {
"hover": "linear-gradient(180deg in oklch shorter hue, #2e343b 0%, #1b2127 100%)",
"active": "linear-gradient(180deg in oklch shorter hue, #1f252b 0%, #0d1318 100%)"
},
"contrast": {
"white": {
"ratio": 13.913,
"at": 0,
"passesAA": true,
"passesAALarge": true
},
"black": {
"ratio": 1.197,
"at": 0.9841,
"passesAA": false,
"passesAALarge": false
},
"suggestedInk": "#ffffff"
}
}
},
"$description": "Button / CTA surface with hover and active states (--brand-gradient-button)."
}
}
}Colours
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.
https://mcp.brandsweets.com/gradients/mcpclaude mcp add --transport http brandsweets-gradients https://mcp.brandsweets.com/gradients/mcp
›brand_gradients for att-com — give me the hero CSS and the ink that passes AA, then a version in oklch
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AT&T 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 AT&T. Owner of this brand? Request a correction or removal → Machine-readable: gradients.md