#B4D137#B4D137

#B4D137 is a light, vivid yellow-green. Relative luminance 0.556; OKLCH L 81.2% C 0.174 H 119.9°. Best body text is #000000 at 12.12:1 contrast (WCAG AA passes).

Color values

HEX	#B4D137
RGB	rgb(180, 209, 55)
HSL	hsl(71, 63%, 52%)
HSV	hsv(71, 74%, 82%)
CMYK	cmyk(13.9%, 0%, 73.7%, 18%)
CIE-LAB	lab(79.37, -29.31, 68.25)
CIE-LCH	lch(79.37, 74.28, 113.24°)
OKLab	oklab(81.22% -0.087 0.1511)
OKLCH	oklch(81.22% 0.174 119.9)
XYZ	xyz(42.3133, 55.5802, 12.1126)
Luminance	0.5558 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B4D137 #5437D1

analogous

#D1A137 #B4D137 #67D137

triadic

#B4D137 #37B4D1 #D137B4

tetradic

#B4D137 #37D1A1 #5437D1 #D13767

square

#B4D137 #37D1A1 #5437D1 #D13767

split-complementary

#B4D137 #3767D1 #A137D1

monochromatic

#62731A #8DA526 #B4D137 #C7DC69 #D9E89B

Accessibility & contrast

On white

1.73

#B4D137 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

12.12

#B4D137 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #B4D137

12.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B4D137	#FFFFFF	#000000	##000000
##B4D137	1.00	1.73	12.12	12.12
#FFFFFF	1.73	1.00	21.00	21.00
#000000	12.12	21.00	1.00	1.00
##000000	12.12	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#DEC515

Deuteranopia (green-blind)

#DBC545

Tritanopia (blue-blind)

#BEC6B4

Achromatopsia (no color)

#C5C5C5

Design tokens & code

CSS

--color: #b4d137;
/* rgb */ color: rgb(180, 209, 55);
/* oklch */ color: oklch(81.2% 0.174 119.9);

Tailwind

colors: {
  custom: {
    50: '#cedf79',
    500: '#b4d137',
    950: '#000000',
  },
}

SCSS

$custom: #b4d137;
$custom-light: #cedf79;
$custom-dark: #000000;

JSON

{
  "hex": "#b4d137",
  "rgb": {
    "r": 180,
    "g": 209,
    "b": 55
  },
  "hsl": {
    "h": 71.299,
    "s": 62.602,
    "l": 51.765
  },
  "oklch": {
    "l": 0.81218,
    "c": 0.1743,
    "h": 119.9
  },
  "luminance": 0.5558
}

Semantic roles & 50–950 ramp

primary

#B4D137

secondary

#3F307C

accent

#42E661

background

#FEFEFB

surface

#FBFCF2

border

#D4D5CC

text

#14150A

muted

#83847D

Preview Lab

Preview with #B4D137

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

Preview Lab → · Contrast checker → · Palette generator →