#B5D031#B5D031

#B5D031 is a light, vivid yellow-green. Relative luminance 0.552; OKLCH L 81.0% C 0.176 H 119.2°. Best body text is #000000 at 12.03:1 contrast (WCAG AA passes).

Color values

HEX	#B5D031
RGB	rgb(181, 208, 49)
HSL	hsl(70, 63%, 50%)
HSV	hsv(70, 76%, 82%)
CMYK	cmyk(13%, 0%, 76.4%, 18.4%)
CIE-LAB	lab(79.13, -28.71, 69.95)
CIE-LCH	lch(79.13, 75.61, 112.31°)
OKLab	oklab(81.03% -0.0858 0.1536)
OKLCH	oklch(81.03% 0.176 119.2)
XYZ	xyz(42.1672, 55.1575, 11.3302)
Luminance	0.5516 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B5D031 #4C31D0

analogous

#D09C31 #B5D031 #65D031

triadic

#B5D031 #31B5D0 #D031B5

tetradic

#B5D031 #31D09C #4C31D0 #D03165

square

#B5D031 #31D09C #4C31D0 #D03165

split-complementary

#B5D031 #3165D0 #9C31D0

monochromatic

#5F6E19 #8B9F24 #B5D031 #C7DB63 #D9E795

Accessibility & contrast

On white

1.75

#B5D031 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

12.03

#B5D031 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #B5D031

12.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B5D031	#FFFFFF	#000000	##000000
##B5D031	1.00	1.75	12.03	12.03
#FFFFFF	1.75	1.00	21.00	21.00
#000000	12.03	21.00	1.00	1.00
##000000	12.03	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#DEC401

Deuteranopia (green-blind)

#DBC440

Tritanopia (blue-blind)

#C0C5B2

Achromatopsia (no color)

#C4C4C4

Design tokens & code

CSS

--color: #b5d031;
/* rgb */ color: rgb(181, 208, 49);
/* oklch */ color: oklch(81.0% 0.176 119.2);

Tailwind

colors: {
  custom: {
    50: '#cfde76',
    500: '#b5d031',
    950: '#000000',
  },
}

SCSS

$custom: #b5d031;
$custom-light: #cfde76;
$custom-dark: #000000;

JSON

{
  "hex": "#b5d031",
  "rgb": {
    "r": 181,
    "g": 208,
    "b": 49
  },
  "hsl": {
    "h": 70.189,
    "s": 62.846,
    "l": 50.392
  },
  "oklch": {
    "l": 0.81031,
    "c": 0.17597,
    "h": 119.2
  },
  "luminance": 0.55157
}

Semantic roles & 50–950 ramp

primary

#B5D031

secondary

#3B2E77

accent

#42E65E

background

#FEFEFB

surface

#FBFCF1

border

#D4D5CB

text

#141509

muted

#83847D

Preview Lab

Preview with #B5D031

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

Preview Lab → · Contrast checker → · Palette generator →