#B1CB39#B1CB39

#B1CB39 is a light, vivid yellow-green. Relative luminance 0.524; OKLCH L 79.7% C 0.167 H 119.3°. Best body text is #000000 at 11.47:1 contrast (WCAG AA passes).

Color values

HEX	#B1CB39
RGB	rgb(177, 203, 57)
HSL	hsl(71, 58%, 51%)
HSV	hsv(71, 72%, 80%)
CMYK	cmyk(12.8%, 0%, 71.9%, 20.4%)
CIE-LAB	lab(77.49, -27.58, 65.69)
CIE-LCH	lch(77.49, 71.24, 112.78°)
OKLab	oklab(79.65% -0.0819 0.1461)
OKLCH	oklch(79.65% 0.167 119.3)
XYZ	xyz(40.2267, 52.3546, 11.8564)
Luminance	0.5235 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B1CB39 #5339CB

analogous

#CB9C39 #B1CB39 #68CB39

triadic

#B1CB39 #39B1CB #CB39B1

tetradic

#B1CB39 #39CB9C #5339CB #CB3968

square

#B1CB39 #39CB9C #5339CB #CB3968

split-complementary

#B1CB39 #3968CB #9C39CB

monochromatic

#5F6D1D #899D29 #B1CB39 #C4D869 #D7E49A

Accessibility & contrast

On white

1.83

#B1CB39 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.47

#B1CB39 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #B1CB39

11.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B1CB39	#FFFFFF	#000000	##000000
##B1CB39	1.00	1.83	11.47	11.47
#FFFFFF	1.83	1.00	21.00	21.00
#000000	11.47	21.00	1.00	1.00
##000000	11.47	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#D8BF1D

Deuteranopia (green-blind)

#D5C045

Tritanopia (blue-blind)

#BBC0AF

Achromatopsia (no color)

#BFBFBF

Design tokens & code

CSS

--color: #b1cb39;
/* rgb */ color: rgb(177, 203, 57);
/* oklch */ color: oklch(79.7% 0.167 119.3);

Tailwind

colors: {
  custom: {
    50: '#ccda79',
    500: '#b1cb39',
    950: '#000000',
  },
}

SCSS

$custom: #b1cb39;
$custom-light: #ccda79;
$custom-dark: #000000;

JSON

{
  "hex": "#b1cb39",
  "rgb": {
    "r": 177,
    "g": 203,
    "b": 57
  },
  "hsl": {
    "h": 70.685,
    "s": 58.4,
    "l": 50.98
  },
  "oklch": {
    "l": 0.79654,
    "c": 0.16745,
    "h": 119.3
  },
  "luminance": 0.52354
}

Semantic roles & 50–950 ramp

primary

#B1CB39

secondary

#3E3276

accent

#46E262

background

#FEFEFB

surface

#FBFBF2

border

#D4D4CC

text

#14140A

muted

#83837D

Preview Lab

Preview with #B1CB39

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

Preview Lab → · Contrast checker → · Palette generator →