#B1CC39#B1CC39

#B1CC39 is a light, vivid yellow-green. Relative luminance 0.528; OKLCH L 79.9% C 0.169 H 119.6°. Best body text is #000000 at 11.57:1 contrast (WCAG AA passes).

Color values

HEX	#B1CC39
RGB	rgb(177, 204, 57)
HSL	hsl(71, 59%, 51%)
HSV	hsv(71, 72%, 80%)
CMYK	cmyk(13.2%, 0%, 72.1%, 20%)
CIE-LAB	lab(77.77, -28.06, 65.96)
CIE-LCH	lch(77.77, 71.68, 113.05°)
OKLab	oklab(79.88% -0.0832 0.1467)
OKLCH	oklch(79.88% 0.169 119.6)
XYZ	xyz(40.4636, 52.8285, 11.9354)
Luminance	0.5283 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B1CC39 #5439CC

analogous

#CC9D39 #B1CC39 #67CC39

triadic

#B1CC39 #39B1CC #CC39B1

tetradic

#B1CC39 #39CC9D #5439CC #CC3967

square

#B1CC39 #39CC9D #5439CC #CC3967

split-complementary

#B1CC39 #3967CC #9D39CC

monochromatic

#5F6E1C #899F29 #B1CC39 #C4D96A #D7E59A

Accessibility & contrast

On white

1.82

#B1CC39 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.57

#B1CC39 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #B1CC39

11.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B1CC39	#FFFFFF	#000000	##000000
##B1CC39	1.00	1.82	11.57	11.57
#FFFFFF	1.82	1.00	21.00	21.00
#000000	11.57	21.00	1.00	1.00
##000000	11.57	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#D9C01D

Deuteranopia (green-blind)

#D6C145

Tritanopia (blue-blind)

#BBC1B0

Achromatopsia (no color)

#C0C0C0

Design tokens & code

CSS

--color: #b1cc39;
/* rgb */ color: rgb(177, 204, 57);
/* oklch */ color: oklch(79.9% 0.169 119.6);

Tailwind

colors: {
  custom: {
    50: '#ccdb79',
    500: '#b1cc39',
    950: '#000000',
  },
}

SCSS

$custom: #b1cc39;
$custom-light: #ccdb79;
$custom-dark: #000000;

JSON

{
  "hex": "#b1cc39",
  "rgb": {
    "r": 177,
    "g": 204,
    "b": 57
  },
  "hsl": {
    "h": 71.02,
    "s": 59.036,
    "l": 51.176
  },
  "oklch": {
    "l": 0.7988,
    "c": 0.16859,
    "h": 119.6
  },
  "luminance": 0.52828
}

Semantic roles & 50–950 ramp

primary

#B1CC39

secondary

#3E3278

accent

#46E262

background

#FEFEFB

surface

#FBFBF2

border

#D4D4CC

text

#14150A

muted

#83847D

Preview Lab

Preview with #B1CC39

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

Preview Lab → · Contrast checker → · Palette generator →