#B1C121#B1C121

#B1C121 is a light, vivid yellow. Relative luminance 0.476; OKLCH L 77.3% C 0.168 H 115.7°. Best body text is #000000 at 10.52:1 contrast (WCAG AA passes).

Color values

HEX	#B1C121
RGB	rgb(177, 193, 33)
HSL	hsl(66, 71%, 44%)
HSV	hsv(66, 83%, 76%)
CMYK	cmyk(8.3%, 0%, 82.9%, 24.3%)
CIE-LAB	lab(74.57, -23.74, 70.17)
CIE-LCH	lch(74.57, 74.08, 108.69°)
OKLab	oklab(77.27% -0.0731 0.1516)
OKLCH	oklch(77.27% 0.168 115.7)
XYZ	xyz(37.4770, 47.5975, 8.6515)
Luminance	0.4760 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B1C121 #3121C1

analogous

#C18121 #B1C121 #61C121

triadic

#B1C121 #21B1C1 #C121B1

tetradic

#B1C121 #21C181 #3121C1 #C12161

square

#B1C121 #21C181 #3121C1 #C12161

split-complementary

#B1C121 #2161C1 #8121C1

monochromatic

#51580F #818D18 #B1C121 #CFDE41 #DCE775

Accessibility & contrast

On white

2.00

#B1C121 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.52

#B1C121 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #B1C121

10.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B1C121	#FFFFFF	#000000	##000000
##B1C121	1.00	2.00	10.52	10.52
#FFFFFF	2.00	1.00	21.00	21.00
#000000	10.52	21.00	1.00	1.00
##000000	10.52	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#CFB700

Deuteranopia (green-blind)

#CEB932

Tritanopia (blue-blind)

#BDB5A5

Achromatopsia (no color)

#B7B7B7

Design tokens & code

CSS

--color: #b1c121;
/* rgb */ color: rgb(177, 193, 33);
/* oklch */ color: oklch(77.3% 0.168 115.7);

Tailwind

colors: {
  custom: {
    50: '#ccd36e',
    500: '#b1c121',
    950: '#000000',
  },
}

SCSS

$custom: #b1c121;
$custom-light: #ccd36e;
$custom-dark: #000000;

JSON

{
  "hex": "#b1c121",
  "rgb": {
    "r": 177,
    "g": 193,
    "b": 33
  },
  "hsl": {
    "h": 66,
    "s": 70.796,
    "l": 44.314
  },
  "oklch": {
    "l": 0.77267,
    "c": 0.16826,
    "h": 115.7
  },
  "luminance": 0.47597
}

Semantic roles & 50–950 ramp

primary

#B1C121

secondary

#796FCF

accent

#3AEE4C

background

#FDFCF7

surface

#FAF9ED

border

#D3D2C8

text

#141408

muted

#83827B

Preview Lab

Preview with #B1C121

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

Preview Lab → · Contrast checker → · Palette generator →