#B1D033#B1D033

#B1D033 is a light, vivid yellow-green. Relative luminance 0.547; OKLCH L 80.8% C 0.177 H 120.5°. Best body text is #000000 at 11.94:1 contrast (WCAG AA passes).

Color values

HEX	#B1D033
RGB	rgb(177, 208, 51)
HSL	hsl(72, 63%, 51%)
HSV	hsv(72, 75%, 82%)
CMYK	cmyk(14.9%, 0%, 75.5%, 18.4%)
CIE-LAB	lab(78.87, -30.24, 68.99)
CIE-LCH	lch(78.87, 75.32, 113.67°)
OKLab	oklab(80.75% -0.0897 0.152)
OKLCH	oklch(80.75% 0.177 120.5)
XYZ	xyz(41.2856, 54.6980, 11.5141)
Luminance	0.5470 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B1D033 #5233D0

analogous

#D0A033 #B1D033 #62D033

triadic

#B1D033 #33B1D0 #D033B1

tetradic

#B1D033 #33D0A0 #5233D0 #D03362

square

#B1D033 #33D0A0 #5233D0 #D03362

split-complementary

#B1D033 #3362D0 #A033D0

monochromatic

#5E6F1A #88A125 #B1D033 #C4DB65 #D7E796

Accessibility & contrast

On white

1.76

#B1D033 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.94

#B1D033 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #B1D033

11.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B1D033	#FFFFFF	#000000	##000000
##B1D033	1.00	1.76	11.94	11.94
#FFFFFF	1.76	1.00	21.00	21.00
#000000	11.94	21.00	1.00	1.00
##000000	11.94	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#DDC409

Deuteranopia (green-blind)

#D9C442

Tritanopia (blue-blind)

#BBC5B3

Achromatopsia (no color)

#C3C3C3

Design tokens & code

CSS

--color: #b1d033;
/* rgb */ color: rgb(177, 208, 51);
/* oklch */ color: oklch(80.8% 0.177 120.5);

Tailwind

colors: {
  custom: {
    50: '#ccde77',
    500: '#b1d033',
    950: '#000000',
  },
}

SCSS

$custom: #b1d033;
$custom-light: #ccde77;
$custom-dark: #000000;

JSON

{
  "hex": "#b1d033",
  "rgb": {
    "r": 177,
    "g": 208,
    "b": 51
  },
  "hsl": {
    "h": 71.847,
    "s": 62.55,
    "l": 50.784
  },
  "oklch": {
    "l": 0.80751,
    "c": 0.17651,
    "h": 120.5
  },
  "luminance": 0.54698
}

Semantic roles & 50–950 ramp

primary

#B1D033

secondary

#3D2F78

accent

#42E662

background

#FEFEFB

surface

#FBFCF1

border

#D4D5CB

text

#141509

muted

#83847D

Preview Lab

Preview with #B1D033

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

Preview Lab → · Contrast checker → · Palette generator →