#B1C031#B1C031

#B1C031 is a light, vivid yellow. Relative luminance 0.473; OKLCH L 77.1% C 0.160 H 115.5°. Best body text is #000000 at 10.45:1 contrast (WCAG AA passes).

Color values

HEX	#B1C031
RGB	rgb(177, 192, 49)
HSL	hsl(66, 59%, 47%)
HSV	hsv(66, 74%, 75%)
CMYK	cmyk(7.8%, 0%, 74.5%, 24.7%)
CIE-LAB	lab(74.36, -22.65, 65.41)
CIE-LCH	lch(74.36, 69.22, 109.10°)
OKLab	oklab(77.12% -0.0689 0.1441)
OKLCH	oklch(77.12% 0.16 115.5)
XYZ	xyz(37.5365, 47.2687, 10.0515)
Luminance	0.4727 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B1C031 #4031C0

analogous

#C08831 #B1C031 #69C031

triadic

#B1C031 #31B1C0 #C031B1

tetradic

#B1C031 #31C088 #4031C0 #C03169

square

#B1C031 #31C088 #4031C0 #C03169

split-complementary

#B1C031 #3169C0 #8831C0

monochromatic

#575E18 #848F25 #B1C031 #C8D559 #D8E18A

Accessibility & contrast

On white

2.01

#B1C031 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.45

#B1C031 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #B1C031

10.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B1C031	#FFFFFF	#000000	##000000
##B1C031	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)

#CEB610

Deuteranopia (green-blind)

#CDB83D

Tritanopia (blue-blind)

#BDB5A5

Achromatopsia (no color)

#B7B7B7

Design tokens & code

CSS

--color: #b1c031;
/* rgb */ color: rgb(177, 192, 49);
/* oklch */ color: oklch(77.1% 0.160 115.5);

Tailwind

colors: {
  custom: {
    50: '#ccd274',
    500: '#b1c031',
    950: '#000000',
  },
}

SCSS

$custom: #b1c031;
$custom-light: #ccd274;
$custom-dark: #000000;

JSON

{
  "hex": "#b1c031",
  "rgb": {
    "r": 177,
    "g": 192,
    "b": 49
  },
  "hsl": {
    "h": 66.294,
    "s": 59.336,
    "l": 47.255
  },
  "oklch": {
    "l": 0.77122,
    "c": 0.15976,
    "h": 115.5
  },
  "luminance": 0.47268
}

Semantic roles & 50–950 ramp

primary

#B1C031

secondary

#8982CB

accent

#45E356

background

#FDFCF7

surface

#FAF9ED

border

#D3D2C8

text

#141409

muted

#83827B

Preview Lab

Preview with #B1C031

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

Preview Lab → · Contrast checker → · Palette generator →