#B1C138#B1C138

#B1C138 is a light, vivid yellow. Relative luminance 0.478; OKLCH L 77.4% C 0.157 H 116.0°. Best body text is #000000 at 10.55:1 contrast (WCAG AA passes).

Color values

HEX	#B1C138
RGB	rgb(177, 193, 56)
HSL	hsl(67, 55%, 49%)
HSV	hsv(67, 71%, 76%)
CMYK	cmyk(8.3%, 0%, 71%, 24.3%)
CIE-LAB	lab(74.68, -22.80, 63.30)
CIE-LCH	lch(74.68, 67.28, 109.81°)
OKLab	oklab(77.39% -0.0687 0.1409)
OKLCH	oklch(77.39% 0.157 116)
XYZ	xyz(37.9162, 47.7731, 10.9644)
Luminance	0.4777 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B1C138 #4838C1

analogous

#C18D38 #B1C138 #6DC138

triadic

#B1C138 #38B1C1 #C138B1

tetradic

#B1C138 #38C18D #4838C1 #C1386D

square

#B1C138 #38C18D #4838C1 #C1386D

split-complementary

#B1C138 #386DC1 #8D38C1

monochromatic

#5A621C #85922A #B1C138 #C5D264 #D7E094

Accessibility & contrast

On white

1.99

#B1C138 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.55

#B1C138 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #B1C138

10.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B1C138	#FFFFFF	#000000	##000000
##B1C138	1.00	1.99	10.55	10.55
#FFFFFF	1.99	1.00	21.00	21.00
#000000	10.55	21.00	1.00	1.00
##000000	10.55	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#CEB720

Deuteranopia (green-blind)

#CDB943

Tritanopia (blue-blind)

#BCB6A6

Achromatopsia (no color)

#B8B8B8

Design tokens & code

CSS

--color: #b1c138;
/* rgb */ color: rgb(177, 193, 56);
/* oklch */ color: oklch(77.4% 0.157 116.0);

Tailwind

colors: {
  custom: {
    50: '#ccd378',
    500: '#b1c138',
    950: '#000000',
  },
}

SCSS

$custom: #b1c138;
$custom-light: #ccd378;
$custom-dark: #000000;

JSON

{
  "hex": "#b1c138",
  "rgb": {
    "r": 177,
    "g": 193,
    "b": 56
  },
  "hsl": {
    "h": 67.007,
    "s": 55.02,
    "l": 48.824
  },
  "oklch": {
    "l": 0.77392,
    "c": 0.15674,
    "h": 116
  },
  "luminance": 0.47773
}

Semantic roles & 50–950 ramp

primary

#B1C138

secondary

#918ACB

accent

#49DE5B

background

#FCFCF7

surface

#F9F9EE

border

#D2D2C9

text

#141409

muted

#82827B

Preview Lab

Preview with #B1C138

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

Preview Lab → · Contrast checker → · Palette generator →