#B3D63B#B3D63B

#B3D63B is a very light, vivid yellow-green. Relative luminance 0.580; OKLCH L 82.3% C 0.178 H 121.7°. Best body text is #000000 at 12.60:1 contrast (WCAG AA passes).

Color values

HEX	#B3D63B
RGB	rgb(179, 214, 59)
HSL	hsl(74, 65%, 54%)
HSV	hsv(74, 72%, 84%)
CMYK	cmyk(16.4%, 0%, 72.4%, 16.1%)
CIE-LAB	lab(80.73, -31.86, 68.19)
CIE-LCH	lch(80.73, 75.27, 115.04°)
OKLab	oklab(82.31% -0.0936 0.1516)
OKLCH	oklch(82.31% 0.178 121.7)
XYZ	xyz(43.4271, 57.9926, 13.0427)
Luminance	0.5799 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B3D63B #5E3BD6

analogous

#D6AB3B #B3D63B #65D63B

triadic

#B3D63B #3BB3D6 #D63BB3

tetradic

#B3D63B #3BD6AB #5E3BD6 #D63B65

square

#B3D63B #3BD6AB #5E3BD6 #D63B65

split-complementary

#B3D63B #3B65D6 #AB3BD6

monochromatic

#667D1A #90AF25 #B3D63B #C7E16E #DAEBA0

Accessibility & contrast

On white

1.67

#B3D63B on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

12.60

#B3D63B on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #B3D63B

12.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B3D63B	#FFFFFF	#000000	##000000
##B3D63B	1.00	1.67	12.60	12.60
#FFFFFF	1.67	1.00	21.00	21.00
#000000	12.60	21.00	1.00	1.00
##000000	12.60	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#E3C91C

Deuteranopia (green-blind)

#DFC849

Tritanopia (blue-blind)

#BDCBB8

Achromatopsia (no color)

#C8C8C8

Design tokens & code

CSS

--color: #b3d63b;
/* rgb */ color: rgb(179, 214, 59);
/* oklch */ color: oklch(82.3% 0.178 121.7);

Tailwind

colors: {
  custom: {
    50: '#cde27b',
    500: '#b3d63b',
    950: '#000000',
  },
}

SCSS

$custom: #b3d63b;
$custom-light: #cde27b;
$custom-dark: #000000;

JSON

{
  "hex": "#b3d63b",
  "rgb": {
    "r": 179,
    "g": 214,
    "b": 59
  },
  "hsl": {
    "h": 73.548,
    "s": 65.401,
    "l": 53.529
  },
  "oklch": {
    "l": 0.82305,
    "c": 0.17817,
    "h": 121.7
  },
  "luminance": 0.57993
}

Semantic roles & 50–950 ramp

primary

#B3D63B

secondary

#443184

accent

#3FE866

background

#FEFEFB

surface

#FBFCF2

border

#D4D5CC

text

#14150A

muted

#83847D

Preview Lab

Preview with #B3D63B

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

Preview Lab → · Contrast checker → · Palette generator →