#B4D63B#B4D63B

#B4D63B is a very light, vivid yellow-green. Relative luminance 0.581; OKLCH L 82.4% C 0.178 H 121.4°. Best body text is #000000 at 12.62:1 contrast (WCAG AA passes).

Color values

HEX	#B4D63B
RGB	rgb(180, 214, 59)
HSL	hsl(73, 65%, 54%)
HSV	hsv(73, 72%, 84%)
CMYK	cmyk(15.9%, 0%, 72.4%, 16.1%)
CIE-LAB	lab(80.80, -31.46, 68.28)
CIE-LCH	lch(80.80, 75.18, 114.74°)
OKLab	oklab(82.38% -0.0925 0.1518)
OKLCH	oklch(82.38% 0.178 121.4)
XYZ	xyz(43.6591, 58.1122, 13.0536)
Luminance	0.5811 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B4D63B #5D3BD6

analogous

#D6AA3B #B4D63B #66D63B

triadic

#B4D63B #3BB4D6 #D63BB4

tetradic

#B4D63B #3BD6AA #5D3BD6 #D63B66

square

#B4D63B #3BD6AA #5D3BD6 #D63B66

split-complementary

#B4D63B #3B66D6 #AA3BD6

monochromatic

#677D1A #91AF25 #B4D63B #C7E16E #DBEBA0

Accessibility & contrast

On white

1.66

#B4D63B on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

12.62

#B4D63B on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #B4D63B

12.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B4D63B	#FFFFFF	#000000	##000000
##B4D63B	1.00	1.66	12.62	12.62
#FFFFFF	1.66	1.00	21.00	21.00
#000000	12.62	21.00	1.00	1.00
##000000	12.62	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#E3C91C

Deuteranopia (green-blind)

#DFC949

Tritanopia (blue-blind)

#BECBB8

Achromatopsia (no color)

#C9C9C9

Design tokens & code

CSS

--color: #b4d63b;
/* rgb */ color: rgb(180, 214, 59);
/* oklch */ color: oklch(82.4% 0.178 121.4);

Tailwind

colors: {
  custom: {
    50: '#cee27b',
    500: '#b4d63b',
    950: '#000000',
  },
}

SCSS

$custom: #b4d63b;
$custom-light: #cee27b;
$custom-dark: #000000;

JSON

{
  "hex": "#b4d63b",
  "rgb": {
    "r": 180,
    "g": 214,
    "b": 59
  },
  "hsl": {
    "h": 73.161,
    "s": 65.401,
    "l": 53.529
  },
  "oklch": {
    "l": 0.82376,
    "c": 0.17775,
    "h": 121.4
  },
  "luminance": 0.58112
}

Semantic roles & 50–950 ramp

primary

#B4D63B

secondary

#433184

accent

#3FE864

background

#FEFEFB

surface

#FBFCF2

border

#D4D5CC

text

#14150A

muted

#83847D

Preview Lab

Preview with #B4D63B

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

Preview Lab → · Contrast checker → · Palette generator →