#B1D039#B1D039

#B1D039 is a light, vivid yellow-green. Relative luminance 0.548; OKLCH L 80.8% C 0.173 H 120.7°. Best body text is #000000 at 11.95:1 contrast (WCAG AA passes).

Color values

HEX	#B1D039
RGB	rgb(177, 208, 57)
HSL	hsl(72, 62%, 52%)
HSV	hsv(72, 73%, 82%)
CMYK	cmyk(14.9%, 0%, 72.6%, 18.4%)
CIE-LAB	lab(78.90, -29.95, 67.05)
CIE-LCH	lch(78.90, 73.44, 114.07°)
OKLab	oklab(80.79% -0.0884 0.149)
OKLCH	oklch(80.79% 0.173 120.7)
XYZ	xyz(41.4266, 54.7544, 12.2563)
Luminance	0.5475 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B1D039 #5839D0

analogous

#D0A439 #B1D039 #66D039

triadic

#B1D039 #39B1D0 #D039B1

tetradic

#B1D039 #39D0A4 #5839D0 #D03966

square

#B1D039 #39D0A4 #5839D0 #D03966

split-complementary

#B1D039 #3966D0 #A439D0

monochromatic

#61731B #8BA527 #B1D039 #C4DC6A #D8E79C

Accessibility & contrast

On white

1.76

#B1D039 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.95

#B1D039 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #B1D039

11.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B1D039	#FFFFFF	#000000	##000000
##B1D039	1.00	1.76	11.95	11.95
#FFFFFF	1.76	1.00	21.00	21.00
#000000	11.95	21.00	1.00	1.00
##000000	11.95	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#DDC41B

Deuteranopia (green-blind)

#D9C446

Tritanopia (blue-blind)

#BBC5B3

Achromatopsia (no color)

#C3C3C3

Design tokens & code

CSS

--color: #b1d039;
/* rgb */ color: rgb(177, 208, 57);
/* oklch */ color: oklch(80.8% 0.173 120.7);

Tailwind

colors: {
  custom: {
    50: '#ccde7a',
    500: '#b1d039',
    950: '#000000',
  },
}

SCSS

$custom: #b1d039;
$custom-light: #ccde7a;
$custom-dark: #000000;

JSON

{
  "hex": "#b1d039",
  "rgb": {
    "r": 177,
    "g": 208,
    "b": 57
  },
  "hsl": {
    "h": 72.318,
    "s": 61.633,
    "l": 51.961
  },
  "oklch": {
    "l": 0.80787,
    "c": 0.1732,
    "h": 120.7
  },
  "luminance": 0.54754
}

Semantic roles & 50–950 ramp

primary

#B1D039

secondary

#41317C

accent

#43E564

background

#FEFEFB

surface

#FBFCF2

border

#D4D5CC

text

#14150A

muted

#83847D

Preview Lab

Preview with #B1D039

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

Preview Lab → · Contrast checker → · Palette generator →