#B1D438#B1D438

#B1D438 is a light, vivid yellow-green. Relative luminance 0.567; OKLCH L 81.7% C 0.178 H 121.7°. Best body text is #000000 at 12.34:1 contrast (WCAG AA passes).

Color values

HEX	#B1D438
RGB	rgb(177, 212, 56)
HSL	hsl(73, 64%, 53%)
HSV	hsv(73, 74%, 83%)
CMYK	cmyk(16.5%, 0%, 73.6%, 16.9%)
CIE-LAB	lab(80.02, -31.87, 68.47)
CIE-LCH	lch(80.02, 75.52, 114.96°)
OKLab	oklab(81.69% -0.0937 0.1518)
OKLCH	oklch(81.69% 0.178 121.7)
XYZ	xyz(42.3894, 56.7196, 12.4554)
Luminance	0.5672 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B1D438 #5B38D4

analogous

#D4A938 #B1D438 #63D438

triadic

#B1D438 #38B1D4 #D438B1

tetradic

#B1D438 #38D4A9 #5B38D4 #D43863

square

#B1D438 #38D4A9 #5B38D4 #D43863

split-complementary

#B1D438 #3863D4 #A938D4

monochromatic

#63781A #8CAA25 #B1D438 #C5DF6A #D8EA9D

Accessibility & contrast

On white

1.70

#B1D438 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

12.34

#B1D438 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #B1D438

12.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B1D438	#FFFFFF	#000000	##000000
##B1D438	1.00	1.70	12.34	12.34
#FFFFFF	1.70	1.00	21.00	21.00
#000000	12.34	21.00	1.00	1.00
##000000	12.34	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#E1C716

Deuteranopia (green-blind)

#DCC646

Tritanopia (blue-blind)

#BBC9B6

Achromatopsia (no color)

#C6C6C6

Design tokens & code

CSS

--color: #b1d438;
/* rgb */ color: rgb(177, 212, 56);
/* oklch */ color: oklch(81.7% 0.178 121.7);

Tailwind

colors: {
  custom: {
    50: '#cce17a',
    500: '#b1d438',
    950: '#000000',
  },
}

SCSS

$custom: #b1d438;
$custom-light: #cce17a;
$custom-dark: #000000;

JSON

{
  "hex": "#b1d438",
  "rgb": {
    "r": 177,
    "g": 212,
    "b": 56
  },
  "hsl": {
    "h": 73.462,
    "s": 64.463,
    "l": 52.549
  },
  "oklch": {
    "l": 0.81691,
    "c": 0.17838,
    "h": 121.7
  },
  "luminance": 0.5672
}

Semantic roles & 50–950 ramp

primary

#B1D438

secondary

#423080

accent

#40E766

background

#FEFEFB

surface

#FBFCF2

border

#D4D5CC

text

#14150A

muted

#83847D

Preview Lab

Preview with #B1D438

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

Preview Lab → · Contrast checker → · Palette generator →