#B1DA39#B1DA39

#B1DA39 is a very light, vivid yellow-green. Relative luminance 0.598; OKLCH L 83.1% C 0.185 H 123.2°. Best body text is #000000 at 12.96:1 contrast (WCAG AA passes).

Color values

HEX	#B1DA39
RGB	rgb(177, 218, 57)
HSL	hsl(75, 69%, 54%)
HSV	hsv(75, 74%, 85%)
CMYK	cmyk(18.8%, 0%, 73.9%, 14.5%)
CIE-LAB	lab(81.72, -34.59, 69.76)
CIE-LCH	lch(81.72, 77.87, 116.37°)
OKLab	oklab(83.07% -0.1011 0.1547)
OKLCH	oklch(83.07% 0.185 123.2)
XYZ	xyz(43.9419, 59.7851, 13.0948)
Luminance	0.5978 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B1DA39 #6239DA

analogous

#DAB339 #B1DA39 #60DA39

triadic

#B1DA39 #39B1DA #DA39B1

tetradic

#B1DA39 #39DAB3 #6239DA #DA3960

square

#B1DA39 #39DAB3 #6239DA #DA3960

split-complementary

#B1DA39 #3960DA #B339DA

monochromatic

#668118 #8FB422 #B1DA39 #C5E46D #DAEDA0

Accessibility & contrast

On white

1.62

#B1DA39 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

12.96

#B1DA39 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #B1DA39

12.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B1DA39	#FFFFFF	#000000	##000000
##B1DA39	1.00	1.62	12.96	12.96
#FFFFFF	1.62	1.00	21.00	21.00
#000000	12.96	21.00	1.00	1.00
##000000	12.96	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#E7CC15

Deuteranopia (green-blind)

#E1CB48

Tritanopia (blue-blind)

#BACFBB

Achromatopsia (no color)

#CBCBCB

Design tokens & code

CSS

--color: #b1da39;
/* rgb */ color: rgb(177, 218, 57);
/* oklch */ color: oklch(83.1% 0.185 123.2);

Tailwind

colors: {
  custom: {
    50: '#cce57b',
    500: '#b1da39',
    950: '#000000',
  },
}

SCSS

$custom: #b1da39;
$custom-light: #cce57b;
$custom-dark: #000000;

JSON

{
  "hex": "#b1da39",
  "rgb": {
    "r": 177,
    "g": 218,
    "b": 57
  },
  "hsl": {
    "h": 75.28,
    "s": 68.511,
    "l": 53.922
  },
  "oklch": {
    "l": 0.83065,
    "c": 0.18478,
    "h": 123.2
  },
  "luminance": 0.59785
}

Semantic roles & 50–950 ramp

primary

#B1DA39

secondary

#463088

accent

#3CEB69

background

#FEFEFB

surface

#FBFCF2

border

#D4D5CC

text

#14150A

muted

#83847D

Preview Lab

Preview with #B1DA39

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

Preview Lab → · Contrast checker → · Palette generator →