#B5D637#B5D637

#B5D637 is a very light, vivid yellow-green. Relative luminance 0.582; OKLCH L 82.4% C 0.180 H 120.9°. Best body text is #000000 at 12.64:1 contrast (WCAG AA passes).

Color values

HEX	#B5D637
RGB	rgb(181, 214, 55)
HSL	hsl(72, 66%, 53%)
HSV	hsv(72, 74%, 84%)
CMYK	cmyk(15.4%, 0%, 74.3%, 16.1%)
CIE-LAB	lab(80.85, -31.26, 69.67)
CIE-LCH	lch(80.85, 76.36, 114.16°)
OKLab	oklab(82.42% -0.0924 0.154)
OKLCH	oklch(82.42% 0.18 120.9)
XYZ	xyz(43.7930, 58.1928, 12.5389)
Luminance	0.5819 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B5D637 #5837D6

analogous

#D6A837 #B5D637 #65D637

triadic

#B5D637 #37B5D6 #D637B5

tetradic

#B5D637 #37D6A8 #5837D6 #D63765

square

#B5D637 #37D6A8 #5837D6 #D63765

split-complementary

#B5D637 #3765D6 #A837D6

monochromatic

#667A19 #90AC23 #B5D637 #C8E06A #DBEB9D

Accessibility & contrast

On white

1.66

#B5D637 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

12.64

#B5D637 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #B5D637

12.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B5D637	#FFFFFF	#000000	##000000
##B5D637	1.00	1.66	12.64	12.64
#FFFFFF	1.66	1.00	21.00	21.00
#000000	12.64	21.00	1.00	1.00
##000000	12.64	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#E3C912

Deuteranopia (green-blind)

#DFC946

Tritanopia (blue-blind)

#BFCBB8

Achromatopsia (no color)

#C9C9C9

Design tokens & code

CSS

--color: #b5d637;
/* rgb */ color: rgb(181, 214, 55);
/* oklch */ color: oklch(82.4% 0.180 120.9);

Tailwind

colors: {
  custom: {
    50: '#cfe279',
    500: '#b5d637',
    950: '#000000',
  },
}

SCSS

$custom: #b5d637;
$custom-light: #cfe279;
$custom-dark: #000000;

JSON

{
  "hex": "#b5d637",
  "rgb": {
    "r": 181,
    "g": 214,
    "b": 55
  },
  "hsl": {
    "h": 72.453,
    "s": 65.975,
    "l": 52.745
  },
  "oklch": {
    "l": 0.82422,
    "c": 0.1796,
    "h": 120.9
  },
  "luminance": 0.58193
}

Semantic roles & 50–950 ramp

primary

#B5D637

secondary

#413082

accent

#3FE962

background

#FEFEFB

surface

#FBFCF2

border

#D4D5CC

text

#14150A

muted

#83847D

Preview Lab

Preview with #B5D637

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

Preview Lab → · Contrast checker → · Palette generator →