#B4C728#B4C728

#B4C728 is a light, vivid yellow. Relative luminance 0.507; OKLCH L 78.9% C 0.171 H 116.7°. Best body text is #000000 at 11.14:1 contrast (WCAG AA passes).

Color values

HEX	#B4C728
RGB	rgb(180, 199, 40)
HSL	hsl(67, 67%, 47%)
HSV	hsv(67, 80%, 78%)
CMYK	cmyk(9.5%, 0%, 79.9%, 22%)
CIE-LAB	lab(76.50, -25.17, 70.14)
CIE-LCH	lch(76.50, 74.52, 109.74°)
OKLab	oklab(78.88% -0.0767 0.1525)
OKLCH	oklch(78.88% 0.171 116.7)
XYZ	xyz(39.6299, 50.7039, 9.7062)
Luminance	0.5070 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B4C728 #3B28C7

analogous

#C78B28 #B4C728 #65C728

triadic

#B4C728 #28B4C7 #C728B4

tetradic

#B4C728 #28C78B #3B28C7 #C72865

square

#B4C728 #28C78B #3B28C7 #C72865

split-complementary

#B4C728 #2865C7 #8B28C7

monochromatic

#586114 #86941E #B4C728 #CBDC50 #DAE683

Accessibility & contrast

On white

1.88

#B4C728 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.14

#B4C728 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #B4C728

11.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B4C728	#FFFFFF	#000000	##000000
##B4C728	1.00	1.88	11.14	11.14
#FFFFFF	1.88	1.00	21.00	21.00
#000000	11.14	21.00	1.00	1.00
##000000	11.14	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#D5BC00

Deuteranopia (green-blind)

#D3BE38

Tritanopia (blue-blind)

#C0BBAA

Achromatopsia (no color)

#BDBDBD

Design tokens & code

CSS

--color: #b4c728;
/* rgb */ color: rgb(180, 199, 40);
/* oklch */ color: oklch(78.9% 0.171 116.7);

Tailwind

colors: {
  custom: {
    50: '#ced771',
    500: '#b4c728',
    950: '#000000',
  },
}

SCSS

$custom: #b4c728;
$custom-light: #ced771;
$custom-dark: #000000;

JSON

{
  "hex": "#b4c728",
  "rgb": {
    "r": 180,
    "g": 199,
    "b": 40
  },
  "hsl": {
    "h": 67.17,
    "s": 66.527,
    "l": 46.863
  },
  "oklch": {
    "l": 0.78881,
    "c": 0.17073,
    "h": 116.7
  },
  "luminance": 0.50703
}

Semantic roles & 50–950 ramp

primary

#B4C728

secondary

#30276C

accent

#3EE953

background

#FEFEFB

surface

#FBFBF1

border

#D4D4CB

text

#141409

muted

#83837D

Preview Lab

Preview with #B4C728

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

Preview Lab → · Contrast checker → · Palette generator →