#B1D33D#B1D33D

#B1D33D is a light, vivid yellow-green. Relative luminance 0.563; OKLCH L 81.5% C 0.174 H 121.6°. Best body text is #000000 at 12.25:1 contrast (WCAG AA passes).

Color values

HEX	#B1D33D
RGB	rgb(177, 211, 61)
HSL	hsl(74, 63%, 53%)
HSV	hsv(74, 71%, 83%)
CMYK	cmyk(16.1%, 0%, 71.1%, 17.3%)
CIE-LAB	lab(79.77, -31.15, 66.51)
CIE-LCH	lch(79.77, 73.44, 115.09°)
OKLab	oklab(81.5% -0.0913 0.1485)
OKLCH	oklch(81.5% 0.174 121.6)
XYZ	xyz(42.2687, 56.2725, 13.0489)
Luminance	0.5627 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B1D33D #5F3DD3

analogous

#D3AA3D #B1D33D #66D33D

triadic

#B1D33D #3DB1D3 #D33DB1

tetradic

#B1D33D #3DD3AA #5F3DD3 #D33D66

square

#B1D33D #3DD3AA #5F3DD3 #D33D66

split-complementary

#B1D33D #3D66D3 #AA3DD3

monochromatic

#657A1C #8EAC27 #B1D33D #C5DE6F #D9EAA1

Accessibility & contrast

On white

1.71

#B1D33D on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

12.25

#B1D33D on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #B1D33D

12.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B1D33D	#FFFFFF	#000000	##000000
##B1D33D	1.00	1.71	12.25	12.25
#FFFFFF	1.71	1.00	21.00	21.00
#000000	12.25	21.00	1.00	1.00
##000000	12.25	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#E0C622

Deuteranopia (green-blind)

#DBC64A

Tritanopia (blue-blind)

#BAC8B6

Achromatopsia (no color)

#C6C6C6

Design tokens & code

CSS

--color: #b1d33d;
/* rgb */ color: rgb(177, 211, 61);
/* oklch */ color: oklch(81.5% 0.174 121.6);

Tailwind

colors: {
  custom: {
    50: '#cce07c',
    500: '#b1d33d',
    950: '#000000',
  },
}

SCSS

$custom: #b1d33d;
$custom-light: #cce07c;
$custom-dark: #000000;

JSON

{
  "hex": "#b1d33d",
  "rgb": {
    "r": 177,
    "g": 211,
    "b": 61
  },
  "hsl": {
    "h": 73.6,
    "s": 63.025,
    "l": 53.333
  },
  "oklch": {
    "l": 0.81496,
    "c": 0.1743,
    "h": 121.6
  },
  "luminance": 0.56273
}

Semantic roles & 50–950 ramp

primary

#B1D33D

secondary

#443282

accent

#42E667

background

#FEFEFB

surface

#FBFCF2

border

#D4D5CC

text

#14150A

muted

#83847D

Preview Lab

Preview with #B1D33D

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

Preview Lab → · Contrast checker → · Palette generator →