#B1D03B#B1D03B

#B1D03B is a light, vivid yellow-green. Relative luminance 0.548; OKLCH L 80.8% C 0.172 H 120.7°. Best body text is #000000 at 11.96:1 contrast (WCAG AA passes).

Color values

HEX	#B1D03B
RGB	rgb(177, 208, 59)
HSL	hsl(72, 61%, 52%)
HSV	hsv(72, 72%, 82%)
CMYK	cmyk(14.9%, 0%, 71.6%, 18.4%)
CIE-LAB	lab(78.91, -29.85, 66.37)
CIE-LCH	lch(78.91, 72.78, 114.21°)
OKLab	oklab(80.8% -0.0879 0.1478)
OKLCH	oklch(80.8% 0.172 120.7)
XYZ	xyz(41.4775, 54.7747, 12.5243)
Luminance	0.5477 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B1D03B #5A3BD0

analogous

#D0A43B #B1D03B #67D03B

triadic

#B1D03B #3BB1D0 #D03BB1

tetradic

#B1D03B #3BD0A4 #5A3BD0 #D03B67

square

#B1D03B #3BD0A4 #5A3BD0 #D03B67

split-complementary

#B1D03B #3B67D0 #A43BD0

monochromatic

#62751C #8CA628 #B1D03B #C5DC6C #D8E89E

Accessibility & contrast

On white

1.76

#B1D03B on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.96

#B1D03B on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #B1D03B

11.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B1D03B	#FFFFFF	#000000	##000000
##B1D03B	1.00	1.76	11.96	11.96
#FFFFFF	1.76	1.00	21.00	21.00
#000000	11.96	21.00	1.00	1.00
##000000	11.96	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#DDC41F

Deuteranopia (green-blind)

#D9C448

Tritanopia (blue-blind)

#BBC5B3

Achromatopsia (no color)

#C3C3C3

Design tokens & code

CSS

--color: #b1d03b;
/* rgb */ color: rgb(177, 208, 59);
/* oklch */ color: oklch(80.8% 0.172 120.7);

Tailwind

colors: {
  custom: {
    50: '#ccde7b',
    500: '#b1d03b',
    950: '#000000',
  },
}

SCSS

$custom: #b1d03b;
$custom-light: #ccde7b;
$custom-dark: #000000;

JSON

{
  "hex": "#b1d03b",
  "rgb": {
    "r": 177,
    "g": 208,
    "b": 59
  },
  "hsl": {
    "h": 72.483,
    "s": 61.317,
    "l": 52.353
  },
  "oklch": {
    "l": 0.80801,
    "c": 0.17201,
    "h": 120.7
  },
  "luminance": 0.54775
}

Semantic roles & 50–950 ramp

primary

#B1D03B

secondary

#42327D

accent

#43E465

background

#FEFEFB

surface

#FBFCF2

border

#D4D5CC

text

#14150A

muted

#83847D

Preview Lab

Preview with #B1D03B

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →