#B1CD39#B1CD39

#B1CD39 is a light, vivid yellow-green. Relative luminance 0.533; OKLCH L 80.1% C 0.170 H 119.8°. Best body text is #000000 at 11.66:1 contrast (WCAG AA passes).

Color values

HEX	#B1CD39
RGB	rgb(177, 205, 57)
HSL	hsl(71, 60%, 51%)
HSV	hsv(71, 72%, 80%)
CMYK	cmyk(13.7%, 0%, 72.2%, 19.6%)
CIE-LAB	lab(78.05, -28.54, 66.23)
CIE-LCH	lch(78.05, 72.12, 113.31°)
OKLab	oklab(80.11% -0.0845 0.1472)
OKLCH	oklch(80.11% 0.17 119.8)
XYZ	xyz(40.7021, 53.3053, 12.0148)
Luminance	0.5331 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B1CD39 #5539CD

analogous

#CD9F39 #B1CD39 #67CD39

triadic

#B1CD39 #39B1CD #CD39B1

tetradic

#B1CD39 #39CD9F #5539CD #CD3967

square

#B1CD39 #39CD9F #5539CD #CD3967

split-complementary

#B1CD39 #3967CD #9F39CD

monochromatic

#606F1C #8AA028 #B1CD39 #C4D96A #D7E69B

Accessibility & contrast

On white

1.80

#B1CD39 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.66

#B1CD39 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #B1CD39

11.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B1CD39	#FFFFFF	#000000	##000000
##B1CD39	1.00	1.80	11.66	11.66
#FFFFFF	1.80	1.00	21.00	21.00
#000000	11.66	21.00	1.00	1.00
##000000	11.66	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#DAC11D

Deuteranopia (green-blind)

#D7C146

Tritanopia (blue-blind)

#BBC2B0

Achromatopsia (no color)

#C1C1C1

Design tokens & code

CSS

--color: #b1cd39;
/* rgb */ color: rgb(177, 205, 57);
/* oklch */ color: oklch(80.1% 0.170 119.8);

Tailwind

colors: {
  custom: {
    50: '#ccdc79',
    500: '#b1cd39',
    950: '#000000',
  },
}

SCSS

$custom: #b1cd39;
$custom-light: #ccdc79;
$custom-dark: #000000;

JSON

{
  "hex": "#b1cd39",
  "rgb": {
    "r": 177,
    "g": 205,
    "b": 57
  },
  "hsl": {
    "h": 71.351,
    "s": 59.677,
    "l": 51.373
  },
  "oklch": {
    "l": 0.80107,
    "c": 0.16975,
    "h": 119.8
  },
  "luminance": 0.53305
}

Semantic roles & 50–950 ramp

primary

#B1CD39

secondary

#3F3279

accent

#45E363

background

#FEFEFB

surface

#FBFCF2

border

#D4D5CC

text

#14150A

muted

#83847D

Preview Lab

Preview with #B1CD39

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

Preview Lab → · Contrast checker → · Palette generator →