#B1B72C#B1B72C

#B1B72C is a light, vivid yellow. Relative luminance 0.434; OKLCH L 75.1% C 0.153 H 112.1°. Best body text is #000000 at 9.68:1 contrast (WCAG AA passes).

Color values

HEX	#B1B72C
RGB	rgb(177, 183, 44)
HSL	hsl(63, 61%, 45%)
HSV	hsv(63, 76%, 72%)
CMYK	cmyk(3.3%, 0%, 76%, 28.2%)
CIE-LAB	lab(71.82, -18.40, 64.66)
CIE-LCH	lch(71.82, 67.23, 105.88°)
OKLab	oklab(75.08% -0.0575 0.1417)
OKLCH	oklch(75.08% 0.153 112.1)
XYZ	xyz(35.5208, 43.3968, 8.8877)
Luminance	0.4340 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B1B72C #322CB7

analogous

#B7782C #B1B72C #6CB72C

triadic

#B1B72C #2CB1B7 #B72CB1

tetradic

#B1B72C #2CB778 #322CB7 #B72C6C

square

#B1B72C #2CB778 #322CB7 #B72C6C

split-complementary

#B1B72C #2C6CB7 #782CB7

monochromatic

#525414 #818620 #B1B72C #CED44C #DCE07E

Accessibility & contrast

On white

2.17

#B1B72C on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.68

#B1B72C on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #B1B72C

9.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B1B72C	#FFFFFF	#000000	##000000
##B1B72C	1.00	2.17	9.68	9.68
#FFFFFF	2.17	1.00	21.00	21.00
#000000	9.68	21.00	1.00	1.00
##000000	9.68	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#C5AE07

Deuteranopia (green-blind)

#C6B238

Tritanopia (blue-blind)

#BDAC9D

Achromatopsia (no color)

#B0B0B0

Design tokens & code

CSS

--color: #b1b72c;
/* rgb */ color: rgb(177, 183, 44);
/* oklch */ color: oklch(75.1% 0.153 112.1);

Tailwind

colors: {
  custom: {
    50: '#cccc71',
    500: '#b1b72c',
    950: '#000000',
  },
}

SCSS

$custom: #b1b72c;
$custom-light: #cccc71;
$custom-dark: #000000;

JSON

{
  "hex": "#b1b72c",
  "rgb": {
    "r": 177,
    "g": 183,
    "b": 44
  },
  "hsl": {
    "h": 62.59,
    "s": 61.233,
    "l": 44.51
  },
  "oklch": {
    "l": 0.75079,
    "c": 0.15291,
    "h": 112.1
  },
  "luminance": 0.43396
}

Semantic roles & 50–950 ramp

primary

#B1B72C

secondary

#7A76C8

accent

#43E44A

background

#FDFCF7

surface

#FAF8ED

border

#D3D1C8

text

#141308

muted

#83827B

Preview Lab

Preview with #B1B72C

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

Preview Lab → · Contrast checker → · Palette generator →