#B1D549#B1D549

#B1D549 is a very light, vivid yellow-green. Relative luminance 0.574; OKLCH L 82.0% C 0.169 H 122.6°. Best body text is #000000 at 12.48:1 contrast (WCAG AA passes).

Color values

HEX	#B1D549
RGB	rgb(177, 213, 73)
HSL	hsl(75, 63%, 56%)
HSV	hsv(75, 66%, 84%)
CMYK	cmyk(16.9%, 0%, 65.7%, 16.5%)
CIE-LAB	lab(80.41, -31.35, 62.68)
CIE-LCH	lch(80.41, 70.08, 116.58°)
OKLab	oklab(82.04% -0.0908 0.1422)
OKLCH	oklch(82.04% 0.169 122.6)
XYZ	xyz(43.1288, 57.4165, 15.1124)
Luminance	0.5742 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B1D549 #6D49D5

analogous

#D5B349 #B1D549 #6BD549

triadic

#B1D549 #49B1D5 #D549B1

tetradic

#B1D549 #49D5B3 #6D49D5 #D5496B

square

#B1D549 #49D5B3 #6D49D5 #D5496B

split-complementary

#B1D549 #496BD5 #B349D5

monochromatic

#6B851F #93B72A #B1D549 #C6E07B #DCECAC

Accessibility & contrast

On white

1.68

#B1D549 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

12.48

#B1D549 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #B1D549

12.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B1D549	#FFFFFF	#000000	##000000
##B1D549	1.00	1.68	12.48	12.48
#FFFFFF	1.68	1.00	21.00	21.00
#000000	12.48	21.00	1.00	1.00
##000000	12.48	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#E1C836

Deuteranopia (green-blind)

#DCC754

Tritanopia (blue-blind)

#BACBB9

Achromatopsia (no color)

#C7C7C7

Design tokens & code

CSS

--color: #b1d549;
/* rgb */ color: rgb(177, 213, 73);
/* oklch */ color: oklch(82.0% 0.169 122.6);

Tailwind

colors: {
  custom: {
    50: '#cbe283',
    500: '#b1d549',
    950: '#000000',
  },
}

SCSS

$custom: #b1d549;
$custom-light: #cbe283;
$custom-dark: #000000;

JSON

{
  "hex": "#b1d549",
  "rgb": {
    "r": 177,
    "g": 213,
    "b": 73
  },
  "hsl": {
    "h": 75.429,
    "s": 62.5,
    "l": 56.078
  },
  "oklch": {
    "l": 0.82042,
    "c": 0.16873,
    "h": 122.6
  },
  "luminance": 0.57417
}

Semantic roles & 50–950 ramp

primary

#B1D549

secondary

#4C378C

accent

#42E66C

background

#FEFEFB

surface

#FBFCF2

border

#D4D5CC

text

#14150B

muted

#83847E

Preview Lab

Preview with #B1D549

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

Preview Lab → · Contrast checker → · Palette generator →