#B9C91B#B9C91B

#B9C91B is a light, vivid yellow. Relative luminance 0.522; OKLCH L 79.7% C 0.176 H 115.5°. Best body text is #000000 at 11.43:1 contrast (WCAG AA passes).

Color values

HEX	#B9C91B
RGB	rgb(185, 201, 27)
HSL	hsl(66, 76%, 45%)
HSV	hsv(66, 87%, 79%)
CMYK	cmyk(8%, 0%, 86.6%, 21.2%)
CIE-LAB	lab(77.38, -24.43, 74.07)
CIE-LCH	lch(77.38, 77.99, 108.25°)
OKLab	oklab(79.67% -0.0757 0.1588)
OKLCH	oklch(79.67% 0.176 115.5)
XYZ	xyz(41.0933, 52.1674, 8.9413)
Luminance	0.5217 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B9C91B #2B1BC9

analogous

#C9821B #B9C91B #62C91B

triadic

#B9C91B #1BB9C9 #C91BB9

tetradic

#B9C91B #1BC982 #2B1BC9 #C91B62

square

#B9C91B #1BC982 #2B1BC9 #C91B62

split-complementary

#B9C91B #1B62C9 #821BC9

monochromatic

#565D0D #879314 #B9C91B #D5E53C #E1EC72

Accessibility & contrast

On white

1.84

#B9C91B on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.43

#B9C91B on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #B9C91B

11.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B9C91B	#FFFFFF	#000000	##000000
##B9C91B	1.00	1.84	11.43	11.43
#FFFFFF	1.84	1.00	21.00	21.00
#000000	11.43	21.00	1.00	1.00
##000000	11.43	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#D8BE00

Deuteranopia (green-blind)

#D7C030

Tritanopia (blue-blind)

#C6BDAB

Achromatopsia (no color)

#BFBFBF

Design tokens & code

CSS

--color: #b9c91b;
/* rgb */ color: rgb(185, 201, 27);
/* oklch */ color: oklch(79.7% 0.176 115.5);

Tailwind

colors: {
  custom: {
    50: '#d2d96d',
    500: '#b9c91b',
    950: '#000000',
  },
}

SCSS

$custom: #b9c91b;
$custom-light: #d2d96d;
$custom-dark: #000000;

JSON

{
  "hex": "#b9c91b",
  "rgb": {
    "r": 185,
    "g": 201,
    "b": 27
  },
  "hsl": {
    "h": 65.517,
    "s": 76.316,
    "l": 44.706
  },
  "oklch": {
    "l": 0.79668,
    "c": 0.17588,
    "h": 115.5
  },
  "luminance": 0.52167
}

Semantic roles & 50–950 ramp

primary

#B9C91B

secondary

#262068

accent

#35F346

background

#FEFEFB

surface

#FCFBF1

border

#D5D4CB

text

#151408

muted

#84837D

Preview Lab

Preview with #B9C91B

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

Preview Lab → · Contrast checker → · Palette generator →