#B1C23B#B1C23B

#B1C23B is a light, vivid yellow. Relative luminance 0.482; OKLCH L 77.6% C 0.156 H 116.4°. Best body text is #000000 at 10.65:1 contrast (WCAG AA passes).

Color values

HEX	#B1C23B
RGB	rgb(177, 194, 59)
HSL	hsl(68, 53%, 50%)
HSV	hsv(68, 70%, 76%)
CMYK	cmyk(8.8%, 0%, 69.6%, 23.9%)
CIE-LAB	lab(74.98, -23.13, 62.50)
CIE-LCH	lch(74.98, 66.64, 110.31°)
OKLab	oklab(77.64% -0.0693 0.1397)
OKLCH	oklch(77.64% 0.156 116.4)
XYZ	xyz(38.2136, 48.2470, 11.4364)
Luminance	0.4825 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B1C23B #4C3BC2

analogous

#C2903B #B1C23B #6DC23B

triadic

#B1C23B #3BB1C2 #C23BB1

tetradic

#B1C23B #3BC290 #4C3BC2 #C23B6D

square

#B1C23B #3BC290 #4C3BC2 #C23B6D

split-complementary

#B1C23B #3B6DC2 #903BC2

monochromatic

#5B641E #86932D #B1C23B #C4D169 #D7E098

Accessibility & contrast

On white

1.97

#B1C23B on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.65

#B1C23B on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #B1C23B

10.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B1C23B	#FFFFFF	#000000	##000000
##B1C23B	1.00	1.97	10.65	10.65
#FFFFFF	1.97	1.00	21.00	21.00
#000000	10.65	21.00	1.00	1.00
##000000	10.65	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#CFB825

Deuteranopia (green-blind)

#CEB945

Tritanopia (blue-blind)

#BCB7A7

Achromatopsia (no color)

#B9B9B9

Design tokens & code

CSS

--color: #b1c23b;
/* rgb */ color: rgb(177, 194, 59);
/* oklch */ color: oklch(77.6% 0.156 116.4);

Tailwind

colors: {
  custom: {
    50: '#ccd479',
    500: '#b1c23b',
    950: '#000000',
  },
}

SCSS

$custom: #b1c23b;
$custom-light: #ccd479;
$custom-dark: #000000;

JSON

{
  "hex": "#b1c23b",
  "rgb": {
    "r": 177,
    "g": 194,
    "b": 59
  },
  "hsl": {
    "h": 67.556,
    "s": 53.36,
    "l": 49.608
  },
  "oklch": {
    "l": 0.77638,
    "c": 0.15594,
    "h": 116.4
  },
  "luminance": 0.48246
}

Semantic roles & 50–950 ramp

primary

#B1C23B

secondary

#958ECB

accent

#4BDD5D

background

#FCFCF7

surface

#F9F9EE

border

#D2D2C9

text

#14140A

muted

#82827C

Preview Lab

Preview with #B1C23B

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

Preview Lab → · Contrast checker → · Palette generator →