#B1C91A#B1C91A

#B1C91A is a light, vivid yellow. Relative luminance 0.512; OKLCH L 79.1% C 0.179 H 118.2°. Best body text is #000000 at 11.24:1 contrast (WCAG AA passes).

Color values

HEX	#B1C91A
RGB	rgb(177, 201, 26)
HSL	hsl(68, 77%, 45%)
HSV	hsv(68, 87%, 79%)
CMYK	cmyk(11.9%, 0%, 87.1%, 21.2%)
CIE-LAB	lab(76.80, -27.79, 73.55)
CIE-LCH	lch(76.80, 78.62, 110.70°)
OKLab	oklab(79.05% -0.0846 0.1578)
OKLCH	oklch(79.05% 0.179 118.2)
XYZ	xyz(39.2056, 51.1954, 8.7934)
Luminance	0.5120 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B1C91A #321AC9

analogous

#C98A1A #B1C91A #59C91A

triadic

#B1C91A #1AB1C9 #C91AB1

tetradic

#B1C91A #1AC98A #321AC9 #C91A59

square

#B1C91A #1AC98A #321AC9 #C91A59

split-complementary

#B1C91A #1A59C9 #8A1AC9

monochromatic

#525D0C #819313 #B1C91A #CEE63B #DCED71

Accessibility & contrast

On white

1.87

#B1C91A on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.24

#B1C91A on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #B1C91A

11.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B1C91A	#FFFFFF	#000000	##000000
##B1C91A	1.00	1.87	11.24	11.24
#FFFFFF	1.87	1.00	21.00	21.00
#000000	11.24	21.00	1.00	1.00
##000000	11.24	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#D7BD00

Deuteranopia (green-blind)

#D4BE30

Tritanopia (blue-blind)

#BCBDAB

Achromatopsia (no color)

#BEBEBE

Design tokens & code

CSS

--color: #b1c91a;
/* rgb */ color: rgb(177, 201, 26);
/* oklch */ color: oklch(79.1% 0.179 118.2);

Tailwind

colors: {
  custom: {
    50: '#cdd96c',
    500: '#b1c91a',
    950: '#000000',
  },
}

SCSS

$custom: #b1c91a;
$custom-light: #cdd96c;
$custom-dark: #000000;

JSON

{
  "hex": "#b1c91a",
  "rgb": {
    "r": 177,
    "g": 201,
    "b": 26
  },
  "hsl": {
    "h": 68.229,
    "s": 77.093,
    "l": 44.51
  },
  "oklch": {
    "l": 0.79052,
    "c": 0.17904,
    "h": 118.2
  },
  "luminance": 0.51195
}

Semantic roles & 50–950 ramp

primary

#B1C91A

secondary

#291F68

accent

#34F44E

background

#FEFEFB

surface

#FBFBF1

border

#D4D4CB

text

#141408

muted

#83837D

Preview Lab

Preview with #B1C91A

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

Preview Lab → · Contrast checker → · Palette generator →