#B1D540#B1D540

#B1D540 is a light, vivid yellow-green. Relative luminance 0.573; OKLCH L 82.0% C 0.175 H 122.2°. Best body text is #000000 at 12.46:1 contrast (WCAG AA passes).

Color values

HEX	#B1D540
RGB	rgb(177, 213, 64)
HSL	hsl(74, 64%, 54%)
HSV	hsv(74, 70%, 84%)
CMYK	cmyk(16.9%, 0%, 70%, 16.5%)
CIE-LAB	lab(80.35, -31.91, 66.02)
CIE-LCH	lch(80.35, 73.33, 115.80°)
OKLab	oklab(81.97% -0.0932 0.1479)
OKLCH	oklch(81.97% 0.175 122.2)
XYZ	xyz(42.8517, 57.3057, 13.6531)
Luminance	0.5731 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B1D540 #6440D5

analogous

#D5AF40 #B1D540 #67D540

triadic

#B1D540 #40B1D5 #D540B1

tetradic

#B1D540 #40D5AF #6440D5 #D54067

square

#B1D540 #40D5AF #6440D5 #D54067

split-complementary

#B1D540 #4067D5 #AF40D5

monochromatic

#677F1C #90B127 #B1D540 #C5E072 #DAEBA4

Accessibility & contrast

On white

1.69

#B1D540 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

12.46

#B1D540 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #B1D540

12.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B1D540	#FFFFFF	#000000	##000000
##B1D540	1.00	1.69	12.46	12.46
#FFFFFF	1.69	1.00	21.00	21.00
#000000	12.46	21.00	1.00	1.00
##000000	12.46	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#E2C827

Deuteranopia (green-blind)

#DDC74C

Tritanopia (blue-blind)

#BACAB8

Achromatopsia (no color)

#C7C7C7

Design tokens & code

CSS

--color: #b1d540;
/* rgb */ color: rgb(177, 213, 64);
/* oklch */ color: oklch(82.0% 0.175 122.2);

Tailwind

colors: {
  custom: {
    50: '#cce27e',
    500: '#b1d540',
    950: '#000000',
  },
}

SCSS

$custom: #b1d540;
$custom-light: #cce27e;
$custom-dark: #000000;

JSON

{
  "hex": "#b1d540",
  "rgb": {
    "r": 177,
    "g": 213,
    "b": 64
  },
  "hsl": {
    "h": 74.497,
    "s": 63.948,
    "l": 54.314
  },
  "oklch": {
    "l": 0.81972,
    "c": 0.17479,
    "h": 122.2
  },
  "luminance": 0.57306
}

Semantic roles & 50–950 ramp

primary

#B1D540

secondary

#473386

accent

#41E769

background

#FEFEFB

surface

#FBFCF2

border

#D4D5CC

text

#14150A

muted

#83847D

Preview Lab

Preview with #B1D540

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

Preview Lab → · Contrast checker → · Palette generator →