#B1C33F#B1C33F

#B1C33F is a light, vivid yellow. Relative luminance 0.487; OKLCH L 77.9% C 0.154 H 116.8°. Best body text is #000000 at 10.75:1 contrast (WCAG AA passes).

Color values

HEX	#B1C33F
RGB	rgb(177, 195, 63)
HSL	hsl(68, 52%, 51%)
HSV	hsv(68, 68%, 76%)
CMYK	cmyk(9.2%, 0%, 67.7%, 23.5%)
CIE-LAB	lab(75.29, -23.39, 61.29)
CIE-LCH	lch(75.29, 65.60, 110.88°)
OKLab	oklab(77.89% -0.0697 0.1378)
OKLCH	oklch(77.89% 0.154 116.8)
XYZ	xyz(38.5446, 48.7367, 12.0783)
Luminance	0.4874 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B1C33F #513FC3

analogous

#C3933F #B1C33F #6FC33F

triadic

#B1C33F #3FB1C3 #C33FB1

tetradic

#B1C33F #3FC393 #513FC3 #C33F6F

square

#B1C33F #3FC393 #513FC3 #C33F6F

split-complementary

#B1C33F #3F6FC3 #933FC3

monochromatic

#5E6720 #88962F #B1C33F #C4D26E #D7E09C

Accessibility & contrast

On white

1.95

#B1C33F on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.75

#B1C33F on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #B1C33F

10.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B1C33F	#FFFFFF	#000000	##000000
##B1C33F	1.00	1.95	10.75	10.75
#FFFFFF	1.95	1.00	21.00	21.00
#000000	10.75	21.00	1.00	1.00
##000000	10.75	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#D0B92B

Deuteranopia (green-blind)

#CEBA49

Tritanopia (blue-blind)

#BCB8A9

Achromatopsia (no color)

#B9B9B9

Design tokens & code

CSS

--color: #b1c33f;
/* rgb */ color: rgb(177, 195, 63);
/* oklch */ color: oklch(77.9% 0.154 116.8);

Tailwind

colors: {
  custom: {
    50: '#cbd57c',
    500: '#b1c33f',
    950: '#000000',
  },
}

SCSS

$custom: #b1c33f;
$custom-light: #cbd57c;
$custom-dark: #000000;

JSON

{
  "hex": "#b1c33f",
  "rgb": {
    "r": 177,
    "g": 195,
    "b": 63
  },
  "hsl": {
    "h": 68.182,
    "s": 52.381,
    "l": 50.588
  },
  "oklch": {
    "l": 0.77893,
    "c": 0.1544,
    "h": 116.8
  },
  "luminance": 0.48736
}

Semantic roles & 50–950 ramp

primary

#B1C33F

secondary

#9A92CC

accent

#4CDC60

background

#FCFDF7

surface

#F9FAEE

border

#D2D3C9

text

#14140A

muted

#82837C

Preview Lab

Preview with #B1C33F

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

Preview Lab → · Contrast checker → · Palette generator →