#B5BF31#B5BF31

#B5BF31 is a light, vivid yellow. Relative luminance 0.473; OKLCH L 77.2% C 0.157 H 113.6°. Best body text is #000000 at 10.46:1 contrast (WCAG AA passes).

Color values

HEX	#B5BF31
RGB	rgb(181, 191, 49)
HSL	hsl(64, 59%, 47%)
HSV	hsv(64, 74%, 75%)
CMYK	cmyk(5.2%, 0%, 74.3%, 25.1%)
CIE-LAB	lab(74.39, -20.47, 65.54)
CIE-LCH	lch(74.39, 68.66, 107.35°)
OKLab	oklab(77.22% -0.0631 0.1443)
OKLCH	oklch(77.22% 0.157 113.6)
XYZ	xyz(38.2424, 47.3079, 10.0219)
Luminance	0.4731 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B5BF31 #3B31BF

analogous

#BF8231 #B5BF31 #6EBF31

triadic

#B5BF31 #31B5BF #BF31B5

tetradic

#B5BF31 #31BF82 #3B31BF #BF316E

square

#B5BF31 #31BF82 #3B31BF #BF316E

split-complementary

#B5BF31 #316EBF #8231BF

monochromatic

#595E18 #878E25 #B5BF31 #CCD459 #DBE18A

Accessibility & contrast

On white

2.01

#B5BF31 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.46

#B5BF31 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #B5BF31

10.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B5BF31	#FFFFFF	#000000	##000000
##B5BF31	1.00	2.01	10.46	10.46
#FFFFFF	2.01	1.00	21.00	21.00
#000000	10.46	21.00	1.00	1.00
##000000	10.46	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#CDB611

Deuteranopia (green-blind)

#CDB83D

Tritanopia (blue-blind)

#C1B3A4

Achromatopsia (no color)

#B7B7B7

Design tokens & code

CSS

--color: #b5bf31;
/* rgb */ color: rgb(181, 191, 49);
/* oklch */ color: oklch(77.2% 0.157 113.6);

Tailwind

colors: {
  custom: {
    50: '#cfd274',
    500: '#b5bf31',
    950: '#000000',
  },
}

SCSS

$custom: #b5bf31;
$custom-light: #cfd274;
$custom-dark: #000000;

JSON

{
  "hex": "#b5bf31",
  "rgb": {
    "r": 181,
    "g": 191,
    "b": 49
  },
  "hsl": {
    "h": 64.225,
    "s": 59.167,
    "l": 47.059
  },
  "oklch": {
    "l": 0.77217,
    "c": 0.15746,
    "h": 113.6
  },
  "luminance": 0.47307
}

Semantic roles & 50–950 ramp

primary

#B5BF31

secondary

#8681CB

accent

#45E250

background

#FDFCF7

surface

#FAF9ED

border

#D3D2C8

text

#141409

muted

#83827B

Preview Lab

Preview with #B5BF31

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

Preview Lab → · Contrast checker → · Palette generator →