#6641eb

At a glance

Every number on this page in one read: what #6641eb is made of, how bright it looks, and which way it leans.

Design tokens

The same ramp in the four formats a team actually needs. Paste one and the whole palette lands with it.

:root {
  --brand-50: #F5F3FC;
  --brand-100: #EAE6F9;
  --brand-200: #D1C6F5;
  --brand-300: #AD99F4;
  --brand-400: #8467EF;
  --brand-500: #6641eb;
  --brand-600: #4317DE;
  --brand-700: #3713B9;
  --brand-800: #2C1094;
  --brand-900: #24106B;
  --brand-950: #160A43;
  --brand: #6641eb;
  --brand-ink: #ffffff;
  --brand-surface: #F6F4FA;
  --brand-border: #CAC0ED;
  --brand-hover: #4C21E8;
  --brand-pressed: #3E16CF;
}
@media (prefers-color-scheme: dark) {
  :root {
    --brand-surface: #171424;
    --brand-ink: #D9D3EE;
  }
}

theme: {
  extend: {
    colors: {
      brand: {
        50: '#F5F3FC',
        100: '#EAE6F9',
        200: '#D1C6F5',
        300: '#AD99F4',
        400: '#8467EF',
        500: '#6641eb',
        600: '#4317DE',
        700: '#3713B9',
        800: '#2C1094',
        900: '#24106B',
        950: '#160A43',
        DEFAULT: '#6641eb',
      },
    },
  },
}

$brand: (
  '50': #F5F3FC,
  '100': #EAE6F9,
  '200': #D1C6F5,
  '300': #AD99F4,
  '400': #8467EF,
  '500': #6641eb,
  '600': #4317DE,
  '700': #3713B9,
  '800': #2C1094,
  '900': #24106B,
  '950': #160A43,
);
$brand-base: #6641eb;
$brand-ink: #ffffff;

@function brand($step) { @return map-get($brand, $step); }

{
  "color": {
    "brand": {
      "50": { "$value": "#F5F3FC", "$type": "color" },
      "100": { "$value": "#EAE6F9", "$type": "color" },
      "200": { "$value": "#D1C6F5", "$type": "color" },
      "300": { "$value": "#AD99F4", "$type": "color" },
      "400": { "$value": "#8467EF", "$type": "color" },
      "500": { "$value": "#6641eb", "$type": "color" },
      "600": { "$value": "#4317DE", "$type": "color" },
      "700": { "$value": "#3713B9", "$type": "color" },
      "800": { "$value": "#2C1094", "$type": "color" },
      "900": { "$value": "#24106B", "$type": "color" },
      "950": { "$value": "#160A43", "$type": "color" }
    },
    "brandInk": { "$value": "#ffffff", "$type": "color" }
  }
}

Best text color

Only one of black and white can be right. This is the one, with the number that proves it.

Make it accessible

A contrast checker tells you that you failed. This tells you what to ship instead — same hue, same saturation, lightness moved only as far as WCAG demands.

Accessibility — WCAG contrast

Contrast is symmetric, so each row covers both directions: #6641eb as text on that neutral, and that neutral as text on #6641eb.

Roughly one man in twelve has some form of colour vision deficiency. If any of the three panels above is hard to tell apart from a neighbouring colour in your palette, add a shape, an icon or a label so the meaning does not rest on hue alone.

Color scale — 50 to 950

A Tailwind-shaped ramp built around this exact hex. #6641eb is pinned to step 500; the rest hold its hue and let saturation ease off at the extremes so the pale end never turns neon.

:root {
  --brand-50: oklch(0.97 0.060 284.7);
  --brand-100: oklch(0.94 0.095 284.7);
  --brand-200: oklch(0.88 0.143 284.7);
  --brand-300: oklch(0.80 0.186 284.7);
  --brand-400: oklch(0.72 0.219 284.7);
  --brand-500: oklch(0.64 0.238 284.7);
  --brand-600: oklch(0.56 0.238 284.7);
  --brand-700: oklch(0.48 0.224 284.7);
  --brand-800: oklch(0.40 0.200 284.7);
  --brand-900: oklch(0.32 0.167 284.7);
  --brand-950: oklch(0.24 0.131 284.7);
}

Colors that work with #6641eb

Not a palette — a role sheet. Each swatch answers one question you will hit while building the component.

In real components

The same eight roles, wired into the interface patterns you will actually build with them. Every state below is a computed value, not a mock-up.

How to use #6641eb

Derived from its contrast, chroma and lightness — not from taste.

Meaning and mood

What a colour in this family tends to signal, and how this particular chroma and lightness change the reading.

Similar colors

One move away from this hex in each direction. Every swatch is its own page.

Color relationships

The wheel positions with their names attached, so you can grab the one you actually need.

Transparency

What each alpha value actually composites to. The top row is #6641eb over white; the bottom row is the same alpha over a checkerboard, so you can see what survives on a photo or a video.

rgba(102, 65, 235, 0.5)
rgb(102 65 235 / 50%)
#6641eb80
hsl(253 81% 59% / 50%)
color-mix(in srgb, #6641eb 50%, transparent)

Gradients from #6641eb

Six recipes, each built from this hex and shown with the exact CSS that produced it.

background: linear-gradient(135deg, #9378F1, #6641eb 45%, #230C73);

background: linear-gradient(120deg, #6641eb, #E225E8);

background: linear-gradient(90deg, #6641eb, #C6EB41);

background: radial-gradient(120% 120% at 20% 0%, #A994F4 0%, #6641eb 45%, #230C73 100%);

background: linear-gradient(180deg, #F6F4FA, #ffffff);

background: radial-gradient(60% 60% at 15% 20%, #6F9EF0 0%, transparent 60%), radial-gradient(55% 55% at 85% 15%, #D15DEE 0%, transparent 60%), radial-gradient(70% 70% at 50% 95%, #230C73 0%, transparent 65%), #6641eb;

Nearest named colors

Ranked with CIEDE2000 across all 139 CSS keywords. Under ΔE 2 the eye stops telling them apart; over ΔE 10 they are plainly different colors.

#6641eb in the real world

Where a color in this family tends to land, and the interface roles it is usually asked to play.

Explore nearby colors

Small, deliberate steps away from this hex — useful when you are hunting for the version of a colour that finally feels right.