#B4C03B#B4C03B

#B4C03B is a light, vivid yellow. Relative luminance 0.477; OKLCH L 77.4% C 0.153 H 114.5°. Best body text is #000000 at 10.54:1 contrast (WCAG AA passes).

Color values

HEX	#B4C03B
RGB	rgb(180, 192, 59)
HSL	hsl(65, 53%, 49%)
HSV	hsv(65, 69%, 75%)
CMYK	cmyk(6.2%, 0%, 69.3%, 24.7%)
CIE-LAB	lab(74.65, -20.89, 62.24)
CIE-LCH	lch(74.65, 65.65, 108.55°)
OKLab	oklab(77.43% -0.0633 0.1391)
OKLCH	oklch(77.43% 0.153 114.5)
XYZ	xyz(38.4625, 47.7190, 11.3214)
Luminance	0.4772 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B4C03B #473BC0

analogous

#C08A3B #B4C03B #71C03B

triadic

#B4C03B #3BB4C0 #C03BB4

tetradic

#B4C03B #3BC08A #473BC0 #C03B71

square

#B4C03B #3BC08A #473BC0 #C03B71

split-complementary

#B4C03B #3B71C0 #8A3BC0

monochromatic

#5C621E #88912D #B4C03B #C7D168 #D8DF97

Accessibility & contrast

On white

1.99

#B4C03B on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.54

#B4C03B on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #B4C03B

10.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B4C03B	#FFFFFF	#000000	##000000
##B4C03B	1.00	1.99	10.54	10.54
#FFFFFF	1.99	1.00	21.00	21.00
#000000	10.54	21.00	1.00	1.00
##000000	10.54	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#CEB725

Deuteranopia (green-blind)

#CDB945

Tritanopia (blue-blind)

#C0B5A6

Achromatopsia (no color)

#B8B8B8

Design tokens & code

CSS

--color: #b4c03b;
/* rgb */ color: rgb(180, 192, 59);
/* oklch */ color: oklch(77.4% 0.153 114.5);

Tailwind

colors: {
  custom: {
    50: '#ced279',
    500: '#b4c03b',
    950: '#000000',
  },
}

SCSS

$custom: #b4c03b;
$custom-light: #ced279;
$custom-dark: #000000;

JSON

{
  "hex": "#b4c03b",
  "rgb": {
    "r": 180,
    "g": 192,
    "b": 59
  },
  "hsl": {
    "h": 65.414,
    "s": 52.988,
    "l": 49.216
  },
  "oklch": {
    "l": 0.77427,
    "c": 0.15279,
    "h": 114.5
  },
  "luminance": 0.47718
}

Semantic roles & 50–950 ramp

primary

#B4C03B

secondary

#928CCA

accent

#4BDC58

background

#FDFCF7

surface

#FAF9EE

border

#D3D2C9

text

#14140A

muted

#83827C

Preview Lab

Preview with #B4C03B

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

Preview Lab → · Contrast checker → · Palette generator →