#B1BF51#B1BF51

#B1BF51 is a light, vivid yellow. Relative luminance 0.472; OKLCH L 77.2% C 0.136 H 115.7°. Best body text is #000000 at 10.44:1 contrast (WCAG AA passes).

Color values

HEX	#B1BF51
RGB	rgb(177, 191, 81)
HSL	hsl(68, 46%, 53%)
HSV	hsv(68, 58%, 75%)
CMYK	cmyk(7.3%, 0%, 57.6%, 25.1%)
CIE-LAB	lab(74.32, -20.17, 52.71)
CIE-LCH	lch(74.32, 56.43, 110.94°)
OKLab	oklab(77.16% -0.0588 0.1221)
OKLCH	oklch(77.16% 0.136 115.7)
XYZ	xyz(38.2482, 47.2033, 14.8792)
Luminance	0.4720 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B1BF51 #5F51BF

analogous

#BF9651 #B1BF51 #7ABF51

triadic

#B1BF51 #51B1BF #BF51B1

tetradic

#B1BF51 #51BF96 #5F51BF #BF517A

square

#B1BF51 #51BF96 #5F51BF #BF517A

split-complementary

#B1BF51 #517ABF #9651BF

monochromatic

#656D28 #8E9A39 #B1BF51 #C5CF7E #D9E0AA

Accessibility & contrast

On white

2.01

#B1BF51 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.44

#B1BF51 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #B1BF51

10.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B1BF51	#FFFFFF	#000000	##000000
##B1BF51	1.00	2.01	10.44	10.44
#FFFFFF	2.01	1.00	21.00	21.00
#000000	10.44	21.00	1.00	1.00
##000000	10.44	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#CBB645

Deuteranopia (green-blind)

#CAB858

Tritanopia (blue-blind)

#BBB5A7

Achromatopsia (no color)

#B7B7B7

Design tokens & code

CSS

--color: #b1bf51;
/* rgb */ color: rgb(177, 191, 81);
/* oklch */ color: oklch(77.2% 0.136 115.7);

Tailwind

colors: {
  custom: {
    50: '#cbd286',
    500: '#b1bf51',
    950: '#000000',
  },
}

SCSS

$custom: #b1bf51;
$custom-light: #cbd286;
$custom-dark: #000000;

JSON

{
  "hex": "#b1bf51",
  "rgb": {
    "r": 177,
    "g": 191,
    "b": 81
  },
  "hsl": {
    "h": 67.636,
    "s": 46.218,
    "l": 53.333
  },
  "oklch": {
    "l": 0.77165,
    "c": 0.13554,
    "h": 115.7
  },
  "luminance": 0.47203
}

Semantic roles & 50–950 ramp

primary

#B1BF51

secondary

#A49ECE

accent

#52D663

background

#FCFCF8

surface

#F9F9F0

border

#D2D2CB

text

#14140B

muted

#82827C

Preview Lab

Preview with #B1BF51

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

Preview Lab → · Contrast checker → · Palette generator →