#B1D037#B1D037

#B1D037 is a light, vivid yellow-green. Relative luminance 0.547; OKLCH L 80.8% C 0.174 H 120.6°. Best body text is #000000 at 11.95:1 contrast (WCAG AA passes).

Color values

HEX	#B1D037
RGB	rgb(177, 208, 55)
HSL	hsl(72, 62%, 52%)
HSV	hsv(72, 74%, 82%)
CMYK	cmyk(14.9%, 0%, 73.6%, 18.4%)
CIE-LAB	lab(78.89, -30.05, 67.71)
CIE-LCH	lch(78.89, 74.08, 113.93°)
OKLab	oklab(80.77% -0.0888 0.15)
OKLCH	oklch(80.77% 0.174 120.6)
XYZ	xyz(41.3777, 54.7348, 11.9987)
Luminance	0.5474 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B1D037 #5637D0

analogous

#D0A337 #B1D037 #65D037

triadic

#B1D037 #37B1D0 #D037B1

tetradic

#B1D037 #37D0A3 #5637D0 #D03765

square

#B1D037 #37D0A3 #5637D0 #D03765

split-complementary

#B1D037 #3765D0 #A337D0

monochromatic

#60721B #8AA326 #B1D037 #C4DC69 #D8E79A

Accessibility & contrast

On white

1.76

#B1D037 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.95

#B1D037 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #B1D037

11.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B1D037	#FFFFFF	#000000	##000000
##B1D037	1.00	1.76	11.95	11.95
#FFFFFF	1.76	1.00	21.00	21.00
#000000	11.95	21.00	1.00	1.00
##000000	11.95	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#DDC416

Deuteranopia (green-blind)

#D9C445

Tritanopia (blue-blind)

#BBC5B3

Achromatopsia (no color)

#C3C3C3

Design tokens & code

CSS

--color: #b1d037;
/* rgb */ color: rgb(177, 208, 55);
/* oklch */ color: oklch(80.8% 0.174 120.6);

Tailwind

colors: {
  custom: {
    50: '#ccde79',
    500: '#b1d037',
    950: '#000000',
  },
}

SCSS

$custom: #b1d037;
$custom-light: #ccde79;
$custom-dark: #000000;

JSON

{
  "hex": "#b1d037",
  "rgb": {
    "r": 177,
    "g": 208,
    "b": 55
  },
  "hsl": {
    "h": 72.157,
    "s": 61.943,
    "l": 51.569
  },
  "oklch": {
    "l": 0.80775,
    "c": 0.17435,
    "h": 120.6
  },
  "luminance": 0.54735
}

Semantic roles & 50–950 ramp

primary

#B1D037

secondary

#40307B

accent

#43E564

background

#FEFEFB

surface

#FBFCF2

border

#D4D5CC

text

#14150A

muted

#83847D

Preview Lab

Preview with #B1D037

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

Preview Lab → · Contrast checker → · Palette generator →