#B1DA37#B1DA37

#B1DA37 is a very light, vivid yellow-green. Relative luminance 0.598; OKLCH L 83.1% C 0.186 H 123.1°. Best body text is #000000 at 12.95:1 contrast (WCAG AA passes).

Color values

HEX	#B1DA37
RGB	rgb(177, 218, 55)
HSL	hsl(75, 69%, 54%)
HSV	hsv(75, 75%, 85%)
CMYK	cmyk(18.8%, 0%, 74.8%, 14.5%)
CIE-LAB	lab(81.71, -34.69, 70.40)
CIE-LCH	lch(81.71, 78.48, 116.23°)
OKLab	oklab(83.05% -0.1016 0.1557)
OKLCH	oklch(83.05% 0.186 123.1)
XYZ	xyz(43.8930, 59.7655, 12.8372)
Luminance	0.5977 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B1DA37 #6037DA

analogous

#DAB137 #B1DA37 #5FDA37

triadic

#B1DA37 #37B1DA #DA37B1

tetradic

#B1DA37 #37DAB1 #6037DA #DA375F

square

#B1DA37 #37DAB1 #6037DA #DA375F

split-complementary

#B1DA37 #375FDA #B137DA

monochromatic

#657F18 #8EB321 #B1DA37 #C5E46B #D9ED9E

Accessibility & contrast

On white

1.62

#B1DA37 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

12.95

#B1DA37 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #B1DA37

12.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B1DA37	#FFFFFF	#000000	##000000
##B1DA37	1.00	1.62	12.95	12.95
#FFFFFF	1.62	1.00	21.00	21.00
#000000	12.95	21.00	1.00	1.00
##000000	12.95	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#E7CC0F

Deuteranopia (green-blind)

#E1CB46

Tritanopia (blue-blind)

#BACFBB

Achromatopsia (no color)

#CBCBCB

Design tokens & code

CSS

--color: #b1da37;
/* rgb */ color: rgb(177, 218, 55);
/* oklch */ color: oklch(83.1% 0.186 123.1);

Tailwind

colors: {
  custom: {
    50: '#cce57a',
    500: '#b1da37',
    950: '#000000',
  },
}

SCSS

$custom: #b1da37;
$custom-light: #cce57a;
$custom-dark: #000000;

JSON

{
  "hex": "#b1da37",
  "rgb": {
    "r": 177,
    "g": 218,
    "b": 55
  },
  "hsl": {
    "h": 75.092,
    "s": 68.776,
    "l": 53.529
  },
  "oklch": {
    "l": 0.83053,
    "c": 0.18587,
    "h": 123.1
  },
  "luminance": 0.59766
}

Semantic roles & 50–950 ramp

primary

#B1DA37

secondary

#452F86

accent

#3CEC68

background

#FEFEFB

surface

#FBFCF2

border

#D4D5CC

text

#14150A

muted

#83847D

Preview Lab

Preview with #B1DA37

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

Preview Lab → · Contrast checker → · Palette generator →