#b0df01

At a glance

Every number on this page in one read: what #b0df01 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: #FBFEF1;
  --brand-100: #F7FCE3;
  --brand-200: #EFFBC0;
  --brand-300: #E7FE8F;
  --brand-400: #DBFE57;
  --brand-500: #CFFE20;
  --brand-600: #C0F401;
  --brand-700: #b0df01;
  --brand-800: #80A201;
  --brand-900: #5D7505;
  --brand-950: #3A4903;
  --brand: #b0df01;
  --brand-ink: #000000;
  --brand-surface: #F9FAF4;
  --brand-border: #E3EDC0;
  --brand-hover: #94BB01;
  --brand-pressed: #789801;
}
@media (prefers-color-scheme: dark) {
  :root {
    --brand-surface: #212414;
    --brand-ink: #E8EED3;
  }
}

theme: {
  extend: {
    colors: {
      brand: {
        50: '#FBFEF1',
        100: '#F7FCE3',
        200: '#EFFBC0',
        300: '#E7FE8F',
        400: '#DBFE57',
        500: '#CFFE20',
        600: '#C0F401',
        700: '#b0df01',
        800: '#80A201',
        900: '#5D7505',
        950: '#3A4903',
        DEFAULT: '#b0df01',
      },
    },
  },
}

$brand: (
  '50': #FBFEF1,
  '100': #F7FCE3,
  '200': #EFFBC0,
  '300': #E7FE8F,
  '400': #DBFE57,
  '500': #CFFE20,
  '600': #C0F401,
  '700': #b0df01,
  '800': #80A201,
  '900': #5D7505,
  '950': #3A4903,
);
$brand-base: #b0df01;
$brand-ink: #000000;

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

{
  "color": {
    "brand": {
      "50": { "$value": "#FBFEF1", "$type": "color" },
      "100": { "$value": "#F7FCE3", "$type": "color" },
      "200": { "$value": "#EFFBC0", "$type": "color" },
      "300": { "$value": "#E7FE8F", "$type": "color" },
      "400": { "$value": "#DBFE57", "$type": "color" },
      "500": { "$value": "#CFFE20", "$type": "color" },
      "600": { "$value": "#C0F401", "$type": "color" },
      "700": { "$value": "#b0df01", "$type": "color" },
      "800": { "$value": "#80A201", "$type": "color" },
      "900": { "$value": "#5D7505", "$type": "color" },
      "950": { "$value": "#3A4903", "$type": "color" }
    },
    "brandInk": { "$value": "#000000", "$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: #b0df01 as text on that neutral, and that neutral as text on #b0df01.

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. #b0df01 is pinned to step 700; 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 0.052 123.6);
  --brand-100: oklch(0.94 0.083 123.6);
  --brand-200: oklch(0.88 0.124 123.6);
  --brand-300: oklch(0.80 0.162 123.6);
  --brand-400: oklch(0.72 0.191 123.6);
  --brand-500: oklch(0.64 0.207 123.6);
  --brand-600: oklch(0.56 0.207 123.6);
  --brand-700: oklch(0.48 0.195 123.6);
  --brand-800: oklch(0.40 0.174 123.6);
  --brand-900: oklch(0.32 0.145 123.6);
  --brand-950: oklch(0.24 0.114 123.6);
}

Colors that work with #b0df01

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 #b0df01

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 #b0df01 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(176, 223, 1, 0.5)
rgb(176 223 1 / 50%)
#b0df0180
hsl(73 99% 44% / 50%)
color-mix(in srgb, #b0df01 50%, transparent)

Gradients from #b0df01

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

background: linear-gradient(135deg, #CFFE1F, #b0df01 45%, #647F01);

background: linear-gradient(120deg, #b0df01, #08C001);

background: linear-gradient(90deg, #b0df01, #3001DF);

background: radial-gradient(120% 120% at 20% 0%, #D5FE3E 0%, #b0df01 45%, #647F01 100%);

background: linear-gradient(180deg, #F9FAF4, #ffffff);

background: radial-gradient(60% 60% at 15% 20%, #FEA715 0%, transparent 60%), radial-gradient(55% 55% at 85% 15%, #35FD01 0%, transparent 60%), radial-gradient(70% 70% at 50% 95%, #647F01 0%, transparent 65%), #b0df01;

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.

#b0df01 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.