#B1C52F#B1C52F

#B1C52F is a light, vivid yellow. Relative luminance 0.495; OKLCH L 78.2% C 0.166 H 117.2°. Best body text is #000000 at 10.90:1 contrast (WCAG AA passes).

Color values

HEX	#B1C52F
RGB	rgb(177, 197, 47)
HSL	hsl(68, 61%, 48%)
HSV	hsv(68, 76%, 77%)
CMYK	cmyk(10.2%, 0%, 76.1%, 22.7%)
CIE-LAB	lab(75.75, -25.18, 67.34)
CIE-LCH	lch(75.75, 71.89, 110.50°)
OKLab	oklab(78.24% -0.076 0.1479)
OKLCH	oklch(78.24% 0.166 117.2)
XYZ	xyz(38.6118, 49.4853, 10.2063)
Luminance	0.4949 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B1C52F #432FC5

analogous

#C58E2F #B1C52F #66C52F

triadic

#B1C52F #2FB1C5 #C52FB1

tetradic

#B1C52F #2FC58E #432FC5 #C52F66

square

#B1C52F #2FC58E #432FC5 #C52F66

split-complementary

#B1C52F #2F66C5 #8E2FC5

monochromatic

#586217 #859423 #B1C52F #C7D85A #D8E38B

Accessibility & contrast

On white

1.93

#B1C52F on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.90

#B1C52F on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #B1C52F

10.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B1C52F	#FFFFFF	#000000	##000000
##B1C52F	1.00	1.93	10.90	10.90
#FFFFFF	1.93	1.00	21.00	21.00
#000000	10.90	21.00	1.00	1.00
##000000	10.90	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#D3BA04

Deuteranopia (green-blind)

#D1BC3D

Tritanopia (blue-blind)

#BCBAA9

Achromatopsia (no color)

#BBBBBB

Design tokens & code

CSS

--color: #b1c52f;
/* rgb */ color: rgb(177, 197, 47);
/* oklch */ color: oklch(78.2% 0.166 117.2);

Tailwind

colors: {
  custom: {
    50: '#ccd674',
    500: '#b1c52f',
    950: '#000000',
  },
}

SCSS

$custom: #b1c52f;
$custom-light: #ccd674;
$custom-dark: #000000;

JSON

{
  "hex": "#b1c52f",
  "rgb": {
    "r": 177,
    "g": 197,
    "b": 47
  },
  "hsl": {
    "h": 68,
    "s": 61.475,
    "l": 47.843
  },
  "oklch": {
    "l": 0.78236,
    "c": 0.16629,
    "h": 117.2
  },
  "luminance": 0.49485
}

Semantic roles & 50–950 ramp

primary

#B1C52F

secondary

#8C82CD

accent

#43E559

background

#FDFDF7

surface

#FAFAED

border

#D3D3C8

text

#141409

muted

#83837B

Preview Lab

Preview with #B1C52F

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

Preview Lab → · Contrast checker → · Palette generator →