#B1BC39#B1BC39

#B1BC39 is a light, vivid yellow. Relative luminance 0.456; OKLCH L 76.3% C 0.151 H 114.1°. Best body text is #000000 at 10.12:1 contrast (WCAG AA passes).

Color values

HEX	#B1BC39
RGB	rgb(177, 188, 57)
HSL	hsl(65, 53%, 48%)
HSV	hsv(65, 70%, 74%)
CMYK	cmyk(5.9%, 0%, 69.7%, 26.3%)
CIE-LAB	lab(73.29, -20.27, 61.56)
CIE-LCH	lch(73.29, 64.82, 108.23°)
OKLab	oklab(76.28% -0.0616 0.1374)
OKLCH	oklch(76.28% 0.151 114.1)
XYZ	xyz(36.8542, 45.6097, 10.7322)
Luminance	0.4561 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B1BC39 #4439BC

analogous

#BC8539 #B1BC39 #6FBC39

triadic

#B1BC39 #39B1BC #BC39B1

tetradic

#B1BC39 #39BC85 #4439BC #BC396F

square

#B1BC39 #39BC85 #4439BC #BC396F

split-complementary

#B1BC39 #396FBC #8539BC

monochromatic

#595E1D #858D2B #B1BC39 #C6D063 #D7DE92

Accessibility & contrast

On white

2.07

#B1BC39 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.12

#B1BC39 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #B1BC39

10.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B1BC39	#FFFFFF	#000000	##000000
##B1BC39	1.00	2.07	10.12	10.12
#FFFFFF	2.07	1.00	21.00	21.00
#000000	10.12	21.00	1.00	1.00
##000000	10.12	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#CAB323

Deuteranopia (green-blind)

#C9B543

Tritanopia (blue-blind)

#BDB1A2

Achromatopsia (no color)

#B4B4B4

Design tokens & code

CSS

--color: #b1bc39;
/* rgb */ color: rgb(177, 188, 57);
/* oklch */ color: oklch(76.3% 0.151 114.1);

Tailwind

colors: {
  custom: {
    50: '#ccd078',
    500: '#b1bc39',
    950: '#000000',
  },
}

SCSS

$custom: #b1bc39;
$custom-light: #ccd078;
$custom-dark: #000000;

JSON

{
  "hex": "#b1bc39",
  "rgb": {
    "r": 177,
    "g": 188,
    "b": 57
  },
  "hsl": {
    "h": 65.038,
    "s": 53.469,
    "l": 48.039
  },
  "oklch": {
    "l": 0.76279,
    "c": 0.15056,
    "h": 114.1
  },
  "luminance": 0.45609
}

Semantic roles & 50–950 ramp

primary

#B1BC39

secondary

#8D88C9

accent

#4BDD57

background

#FCFCF7

surface

#F9F9EE

border

#D2D2C9

text

#141309

muted

#82827B

Preview Lab

Preview with #B1BC39

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

Preview Lab → · Contrast checker → · Palette generator →