#B1DF59#B1DF59

#B1DF59 is a very light, vivid yellow-green. Relative luminance 0.628; OKLCH L 84.5% C 0.169 H 125.8°. Best body text is #000000 at 13.57:1 contrast (WCAG AA passes).

Color values

HEX	#B1DF59
RGB	rgb(177, 223, 89)
HSL	hsl(81, 68%, 61%)
HSV	hsv(81, 60%, 87%)
CMYK	cmyk(20.6%, 0%, 60.1%, 12.5%)
CIE-LAB	lab(83.36, -34.80, 59.28)
CIE-LCH	lch(83.36, 68.74, 120.41°)
OKLab	oklab(84.46% -0.0989 0.137)
OKLCH	oklch(84.46% 0.169 125.8)
XYZ	xyz(46.3224, 62.8432, 19.1387)
Luminance	0.6284 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B1DF59 #8759DF

analogous

#DFCA59 #B1DF59 #6EDF59

triadic

#B1DF59 #59B1DF #DF59B1

tetradic

#B1DF59 #59DFCA #8759DF #DF596E

square

#B1DF59 #59DFCA #8759DF #DF596E

split-complementary

#B1DF59 #596EDF #CA59DF

monochromatic

#739F1F #98D229 #B1DF59 #C9E98C #E1F3C0

Accessibility & contrast

On white

1.55

#B1DF59 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

13.57

#B1DF59 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #B1DF59

13.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B1DF59	#FFFFFF	#000000	##000000
##B1DF59	1.00	1.55	13.57	13.57
#FFFFFF	1.55	1.00	21.00	21.00
#000000	13.57	21.00	1.00	1.00
##000000	13.57	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#EAD14A

Deuteranopia (green-blind)

#E4CF62

Tritanopia (blue-blind)

#B8D5C3

Achromatopsia (no color)

#D0D0D0

Design tokens & code

CSS

--color: #b1df59;
/* rgb */ color: rgb(177, 223, 89);
/* oklch */ color: oklch(84.5% 0.169 125.8);

Tailwind

colors: {
  custom: {
    50: '#cbe98d',
    500: '#b1df59',
    950: '#000000',
  },
}

SCSS

$custom: #b1df59;
$custom-light: #cbe98d;
$custom-dark: #000000;

JSON

{
  "hex": "#b1df59",
  "rgb": {
    "r": 177,
    "g": 223,
    "b": 89
  },
  "hsl": {
    "h": 80.597,
    "s": 67.677,
    "l": 61.176
  },
  "oklch": {
    "l": 0.84463,
    "c": 0.16901,
    "h": 125.8
  },
  "luminance": 0.62844
}

Semantic roles & 50–950 ramp

primary

#B1DF59

secondary

#5E3AA2

accent

#16D056

background

#FEFEFC

surface

#FBFCF4

border

#D4D5CE

text

#14160C

muted

#83847F

Preview Lab

Preview with #B1DF59

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

Preview Lab → · Contrast checker → · Palette generator →