#B1BF39#B1BF39

#B1BF39 is a light, vivid yellow. Relative luminance 0.469; OKLCH L 77.0% C 0.154 H 115.3°. Best body text is #000000 at 10.38:1 contrast (WCAG AA passes).

Color values

HEX	#B1BF39
RGB	rgb(177, 191, 57)
HSL	hsl(66, 54%, 49%)
HSV	hsv(66, 70%, 75%)
CMYK	cmyk(7.3%, 0%, 70.2%, 25.1%)
CIE-LAB	lab(74.13, -21.76, 62.39)
CIE-LCH	lch(74.13, 66.08, 109.23°)
OKLab	oklab(76.95% -0.0657 0.1391)
OKLCH	oklch(76.95% 0.154 115.3)
XYZ	xyz(37.5018, 46.9047, 10.9481)
Luminance	0.4690 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B1BF39 #4739BF

analogous

#BF8A39 #B1BF39 #6EBF39

triadic

#B1BF39 #39B1BF #BF39B1

tetradic

#B1BF39 #39BF8A #4739BF #BF396E

square

#B1BF39 #39BF8A #4739BF #BF396E

split-complementary

#B1BF39 #396EBF #8A39BF

monochromatic

#5A611D #85902B #B1BF39 #C6D164 #D7DF93

Accessibility & contrast

On white

2.02

#B1BF39 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.38

#B1BF39 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #B1BF39

10.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B1BF39	#FFFFFF	#000000	##000000
##B1BF39	1.00	2.02	10.38	10.38
#FFFFFF	2.02	1.00	21.00	21.00
#000000	10.38	21.00	1.00	1.00
##000000	10.38	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#CCB522

Deuteranopia (green-blind)

#CCB743

Tritanopia (blue-blind)

#BCB4A5

Achromatopsia (no color)

#B6B6B6

Design tokens & code

CSS

--color: #b1bf39;
/* rgb */ color: rgb(177, 191, 57);
/* oklch */ color: oklch(77.0% 0.154 115.3);

Tailwind

colors: {
  custom: {
    50: '#ccd278',
    500: '#b1bf39',
    950: '#000000',
  },
}

SCSS

$custom: #b1bf39;
$custom-light: #ccd278;
$custom-dark: #000000;

JSON

{
  "hex": "#b1bf39",
  "rgb": {
    "r": 177,
    "g": 191,
    "b": 57
  },
  "hsl": {
    "h": 66.269,
    "s": 54.032,
    "l": 48.627
  },
  "oklch": {
    "l": 0.7695,
    "c": 0.15388,
    "h": 115.3
  },
  "luminance": 0.46904
}

Semantic roles & 50–950 ramp

primary

#B1BF39

secondary

#908ACA

accent

#4ADD5A

background

#FCFCF7

surface

#F9F9EE

border

#D2D2C9

text

#141409

muted

#82827B

Preview Lab

Preview with #B1BF39

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

Preview Lab → · Contrast checker → · Palette generator →