#B1D027#B1D027

#B1D027 is a light, vivid yellow-green. Relative luminance 0.546; OKLCH L 80.7% C 0.182 H 120.3°. Best body text is #000000 at 11.92:1 contrast (WCAG AA passes).

Color values

HEX	#B1D027
RGB	rgb(177, 208, 39)
HSL	hsl(71, 68%, 48%)
HSV	hsv(71, 81%, 82%)
CMYK	cmyk(14.9%, 0%, 81.3%, 18.4%)
CIE-LAB	lab(78.81, -30.72, 72.35)
CIE-LCH	lch(78.81, 78.61, 113.01°)
OKLab	oklab(80.69% -0.0918 0.1572)
OKLCH	oklch(80.69% 0.182 120.3)
XYZ	xyz(41.0544, 54.6055, 10.2962)
Luminance	0.5461 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B1D027 #4627D0

analogous

#D09A27 #B1D027 #5CD027

triadic

#B1D027 #27B1D0 #D027B1

tetradic

#B1D027 #27D09A #4627D0 #D0275C

square

#B1D027 #27D09A #4627D0 #D0275C

split-complementary

#B1D027 #275CD0 #9A27D0

monochromatic

#596914 #859C1D #B1D027 #C6DF55 #D7E989

Accessibility & contrast

On white

1.76

#B1D027 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.92

#B1D027 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #B1D027

11.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B1D027	#FFFFFF	#000000	##000000
##B1D027	1.00	1.76	11.92	11.92
#FFFFFF	1.76	1.00	21.00	21.00
#000000	11.92	21.00	1.00	1.00
##000000	11.92	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#DDC300

Deuteranopia (green-blind)

#DAC339

Tritanopia (blue-blind)

#BCC5B2

Achromatopsia (no color)

#C3C3C3

Design tokens & code

CSS

--color: #b1d027;
/* rgb */ color: rgb(177, 208, 39);
/* oklch */ color: oklch(80.7% 0.182 120.3);

Tailwind

colors: {
  custom: {
    50: '#cdde72',
    500: '#b1d027',
    950: '#000000',
  },
}

SCSS

$custom: #b1d027;
$custom-light: #cdde72;
$custom-dark: #000000;

JSON

{
  "hex": "#b1d027",
  "rgb": {
    "r": 177,
    "g": 208,
    "b": 39
  },
  "hsl": {
    "h": 71.006,
    "s": 68.421,
    "l": 48.431
  },
  "oklch": {
    "l": 0.80691,
    "c": 0.18207,
    "h": 120.3
  },
  "luminance": 0.54605
}

Semantic roles & 50–950 ramp

primary

#B1D027

secondary

#362873

accent

#3DEB5D

background

#FEFEFB

surface

#FBFCF1

border

#D4D5CB

text

#141509

muted

#83847D

Preview Lab

Preview with #B1D027

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

Preview Lab → · Contrast checker → · Palette generator →