#B1C02E#B1C02E

#B1C02E is a light, vivid yellow. Relative luminance 0.472; OKLCH L 77.1% C 0.161 H 115.5°. Best body text is #000000 at 10.45:1 contrast (WCAG AA passes).

Color values

HEX	#B1C02E
RGB	rgb(177, 192, 46)
HSL	hsl(66, 61%, 47%)
HSV	hsv(66, 76%, 75%)
CMYK	cmyk(7.8%, 0%, 76%, 24.7%)
CIE-LAB	lab(74.35, -22.78, 66.36)
CIE-LCH	lch(74.35, 70.16, 108.95°)
OKLab	oklab(77.11% -0.0695 0.1456)
OKLCH	oklch(77.11% 0.161 115.5)
XYZ	xyz(37.4753, 47.2443, 9.7291)
Luminance	0.4724 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B1C02E #3D2EC0

analogous

#C0862E #B1C02E #68C02E

triadic

#B1C02E #2EB1C0 #C02EB1

tetradic

#B1C02E #2EC086 #3D2EC0 #C02E68

square

#B1C02E #2EC086 #3D2EC0 #C02E68

split-complementary

#B1C02E #2E68C0 #862EC0

monochromatic

#565D16 #838F22 #B1C02E #C9D655 #D9E286

Accessibility & contrast

On white

2.01

#B1C02E on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.45

#B1C02E on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #B1C02E

10.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B1C02E	#FFFFFF	#000000	##000000
##B1C02E	1.00	2.01	10.45	10.45
#FFFFFF	2.01	1.00	21.00	21.00
#000000	10.45	21.00	1.00	1.00
##000000	10.45	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#CEB606

Deuteranopia (green-blind)

#CDB83B

Tritanopia (blue-blind)

#BDB5A5

Achromatopsia (no color)

#B7B7B7

Design tokens & code

CSS

--color: #b1c02e;
/* rgb */ color: rgb(177, 192, 46);
/* oklch */ color: oklch(77.1% 0.161 115.5);

Tailwind

colors: {
  custom: {
    50: '#ccd273',
    500: '#b1c02e',
    950: '#000000',
  },
}

SCSS

$custom: #b1c02e;
$custom-light: #ccd273;
$custom-dark: #000000;

JSON

{
  "hex": "#b1c02e",
  "rgb": {
    "r": 177,
    "g": 192,
    "b": 46
  },
  "hsl": {
    "h": 66.164,
    "s": 61.345,
    "l": 46.667
  },
  "oklch": {
    "l": 0.77105,
    "c": 0.16137,
    "h": 115.5
  },
  "luminance": 0.47244
}

Semantic roles & 50–950 ramp

primary

#B1C02E

secondary

#867ECC

accent

#43E454

background

#FDFCF7

surface

#FAF9ED

border

#D3D2C8

text

#141409

muted

#83827B

Preview Lab

Preview with #B1C02E

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

Preview Lab → · Contrast checker → · Palette generator →