#B1D43D#B1D43D

#B1D43D is a light, vivid yellow-green. Relative luminance 0.568; OKLCH L 81.7% C 0.175 H 121.9°. Best body text is #000000 at 12.35:1 contrast (WCAG AA passes).

Color values

HEX	#B1D43D
RGB	rgb(177, 212, 61)
HSL	hsl(74, 64%, 54%)
HSV	hsv(74, 71%, 83%)
CMYK	cmyk(16.5%, 0%, 71.2%, 16.9%)
CIE-LAB	lab(80.05, -31.61, 66.79)
CIE-LCH	lch(80.05, 73.89, 115.33°)
OKLab	oklab(81.72% -0.0926 0.149)
OKLCH	oklch(81.72% 0.175 121.9)
XYZ	xyz(42.5179, 56.7709, 13.1319)
Luminance	0.5677 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B1D43D #603DD4

analogous

#D4AB3D #B1D43D #65D43D

triadic

#B1D43D #3DB1D4 #D43DB1

tetradic

#B1D43D #3DD4AB #603DD4 #D43D65

square

#B1D43D #3DD4AB #603DD4 #D43D65

split-complementary

#B1D43D #3D65D4 #AB3DD4

monochromatic

#657B1B #8EAD26 #B1D43D #C5DF6F #D9EAA1

Accessibility & contrast

On white

1.70

#B1D43D on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

12.35

#B1D43D on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #B1D43D

12.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B1D43D	#FFFFFF	#000000	##000000
##B1D43D	1.00	1.70	12.35	12.35
#FFFFFF	1.70	1.00	21.00	21.00
#000000	12.35	21.00	1.00	1.00
##000000	12.35	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#E1C722

Deuteranopia (green-blind)

#DCC74A

Tritanopia (blue-blind)

#BAC9B7

Achromatopsia (no color)

#C6C6C6

Design tokens & code

CSS

--color: #b1d43d;
/* rgb */ color: rgb(177, 212, 61);
/* oklch */ color: oklch(81.7% 0.175 121.9);

Tailwind

colors: {
  custom: {
    50: '#cce17c',
    500: '#b1d43d',
    950: '#000000',
  },
}

SCSS

$custom: #b1d43d;
$custom-light: #cce17c;
$custom-dark: #000000;

JSON

{
  "hex": "#b1d43d",
  "rgb": {
    "r": 177,
    "g": 212,
    "b": 61
  },
  "hsl": {
    "h": 73.907,
    "s": 63.713,
    "l": 53.529
  },
  "oklch": {
    "l": 0.81723,
    "c": 0.17547,
    "h": 121.9
  },
  "luminance": 0.56771
}

Semantic roles & 50–950 ramp

primary

#B1D43D

secondary

#453283

accent

#41E767

background

#FEFEFB

surface

#FBFCF2

border

#D4D5CC

text

#14150A

muted

#83847D

Preview Lab

Preview with #B1D43D

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

Preview Lab → · Contrast checker → · Palette generator →