#B1CC31#B1CC31

#B1CC31 is a light, vivid yellow-green. Relative luminance 0.528; OKLCH L 79.8% C 0.173 H 119.4°. Best body text is #000000 at 11.55:1 contrast (WCAG AA passes).

Color values

HEX	#B1CC31
RGB	rgb(177, 204, 49)
HSL	hsl(70, 61%, 50%)
HSV	hsv(70, 76%, 80%)
CMYK	cmyk(13.2%, 0%, 76%, 20%)
CIE-LAB	lab(77.73, -28.44, 68.55)
CIE-LCH	lch(77.73, 74.22, 112.53°)
OKLab	oklab(79.83% -0.0849 0.1508)
OKLCH	oklch(79.83% 0.173 119.4)
XYZ	xyz(40.2795, 52.7548, 10.9659)
Luminance	0.5275 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B1CC31 #4C31CC

analogous

#CC9A31 #B1CC31 #63CC31

triadic

#B1CC31 #31B1CC #CC31B1

tetradic

#B1CC31 #31CC9A #4C31CC #CC3163

square

#B1CC31 #31CC9A #4C31CC #CC3163

split-complementary

#B1CC31 #3163CC #9A31CC

monochromatic

#5B6919 #869B25 #B1CC31 #C4D961 #D7E592

Accessibility & contrast

On white

1.82

#B1CC31 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.55

#B1CC31 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #B1CC31

11.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B1CC31	#FFFFFF	#000000	##000000
##B1CC31	1.00	1.82	11.55	11.55
#FFFFFF	1.82	1.00	21.00	21.00
#000000	11.55	21.00	1.00	1.00
##000000	11.55	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#D9C005

Deuteranopia (green-blind)

#D6C140

Tritanopia (blue-blind)

#BCC1AF

Achromatopsia (no color)

#C0C0C0

Design tokens & code

CSS

--color: #b1cc31;
/* rgb */ color: rgb(177, 204, 49);
/* oklch */ color: oklch(79.8% 0.173 119.4);

Tailwind

colors: {
  custom: {
    50: '#ccdb75',
    500: '#b1cc31',
    950: '#000000',
  },
}

SCSS

$custom: #b1cc31;
$custom-light: #ccdb75;
$custom-dark: #000000;

JSON

{
  "hex": "#b1cc31",
  "rgb": {
    "r": 177,
    "g": 204,
    "b": 49
  },
  "hsl": {
    "h": 70.452,
    "s": 61.265,
    "l": 49.608
  },
  "oklch": {
    "l": 0.79831,
    "c": 0.17304,
    "h": 119.4
  },
  "luminance": 0.52755
}

Semantic roles & 50–950 ramp

primary

#B1CC31

secondary

#3A2E73

accent

#43E45F

background

#FEFEFB

surface

#FBFBF1

border

#D4D4CB

text

#141509

muted

#83847D

Preview Lab

Preview with #B1CC31

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

Preview Lab → · Contrast checker → · Palette generator →