#B1C033#B1C033

#B1C033 is a light, vivid yellow. Relative luminance 0.473; OKLCH L 77.1% C 0.159 H 115.6°. Best body text is #000000 at 10.46:1 contrast (WCAG AA passes).

Color values

HEX	#B1C033
RGB	rgb(177, 192, 51)
HSL	hsl(66, 58%, 48%)
HSV	hsv(66, 73%, 75%)
CMYK	cmyk(7.8%, 0%, 73.4%, 24.7%)
CIE-LAB	lab(74.37, -22.56, 64.75)
CIE-LCH	lch(74.37, 68.56, 109.21°)
OKLab	oklab(77.13% -0.0685 0.1431)
OKLCH	oklch(77.13% 0.159 115.6)
XYZ	xyz(37.5797, 47.2860, 10.2788)
Luminance	0.4728 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B1C033 #4233C0

analogous

#C08833 #B1C033 #6AC033

triadic

#B1C033 #33B1C0 #C033B1

tetradic

#B1C033 #33C088 #4233C0 #C0336A

square

#B1C033 #33C088 #4233C0 #C0336A

split-complementary

#B1C033 #336AC0 #8833C0

monochromatic

#585F19 #849026 #B1C033 #C7D45C #D8E18D

Accessibility & contrast

On white

2.01

#B1C033 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.46

#B1C033 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #B1C033

10.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B1C033	#FFFFFF	#000000	##000000
##B1C033	1.00	2.01	10.46	10.46
#FFFFFF	2.01	1.00	21.00	21.00
#000000	10.46	21.00	1.00	1.00
##000000	10.46	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#CEB615

Deuteranopia (green-blind)

#CDB83F

Tritanopia (blue-blind)

#BCB5A5

Achromatopsia (no color)

#B7B7B7

Design tokens & code

CSS

--color: #b1c033;
/* rgb */ color: rgb(177, 192, 51);
/* oklch */ color: oklch(77.1% 0.159 115.6);

Tailwind

colors: {
  custom: {
    50: '#ccd275',
    500: '#b1c033',
    950: '#000000',
  },
}

SCSS

$custom: #b1c033;
$custom-light: #ccd275;
$custom-dark: #000000;

JSON

{
  "hex": "#b1c033",
  "rgb": {
    "r": 177,
    "g": 192,
    "b": 51
  },
  "hsl": {
    "h": 66.383,
    "s": 58.025,
    "l": 47.647
  },
  "oklch": {
    "l": 0.77134,
    "c": 0.15862,
    "h": 115.6
  },
  "luminance": 0.47285
}

Semantic roles & 50–950 ramp

primary

#B1C033

secondary

#8B84CB

accent

#47E157

background

#FCFCF7

surface

#F9F9ED

border

#D2D2C8

text

#141409

muted

#82827B

Preview Lab

Preview with #B1C033

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

Preview Lab → · Contrast checker → · Palette generator →