#B1C73A#B1C73A

#B1C73A is a light, vivid yellow. Relative luminance 0.505; OKLCH L 78.8% C 0.162 H 118.1°. Best body text is #000000 at 11.10:1 contrast (WCAG AA passes).

Color values

HEX	#B1C73A
RGB	rgb(177, 199, 58)
HSL	hsl(69, 56%, 50%)
HSV	hsv(69, 71%, 78%)
CMYK	cmyk(11.1%, 0%, 70.9%, 22%)
CIE-LAB	lab(76.38, -25.61, 64.24)
CIE-LCH	lch(76.38, 69.16, 111.74°)
OKLab	oklab(78.76% -0.0763 0.1432)
OKLCH	oklch(78.76% 0.162 118.1)
XYZ	xyz(39.3195, 50.4998, 11.6783)
Luminance	0.5050 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B1C73A #503AC7

analogous

#C7973A #B1C73A #6AC73A

triadic

#B1C73A #3AB1C7 #C73AB1

tetradic

#B1C73A #3AC797 #503AC7 #C73A6A

square

#B1C73A #3AC797 #503AC7 #C73A6A

split-complementary

#B1C73A #3A6AC7 #973AC7

monochromatic

#5D691E #87982B #B1C73A #C4D56A #D7E299

Accessibility & contrast

On white

1.89

#B1C73A on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.10

#B1C73A on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #B1C73A

11.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B1C73A	#FFFFFF	#000000	##000000
##B1C73A	1.00	1.89	11.10	11.10
#FFFFFF	1.89	1.00	21.00	21.00
#000000	11.10	21.00	1.00	1.00
##000000	11.10	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#D4BC21

Deuteranopia (green-blind)

#D2BD45

Tritanopia (blue-blind)

#BCBCAB

Achromatopsia (no color)

#BCBCBC

Design tokens & code

CSS

--color: #b1c73a;
/* rgb */ color: rgb(177, 199, 58);
/* oklch */ color: oklch(78.8% 0.162 118.1);

Tailwind

colors: {
  custom: {
    50: '#ccd879',
    500: '#b1c73a',
    950: '#000000',
  },
}

SCSS

$custom: #b1c73a;
$custom-light: #ccd879;
$custom-dark: #000000;

JSON

{
  "hex": "#b1c73a",
  "rgb": {
    "r": 177,
    "g": 199,
    "b": 58
  },
  "hsl": {
    "h": 69.362,
    "s": 55.731,
    "l": 50.392
  },
  "oklch": {
    "l": 0.78757,
    "c": 0.16226,
    "h": 118.1
  },
  "luminance": 0.50499
}

Semantic roles & 50–950 ramp

primary

#B1C73A

secondary

#3C3273

accent

#49DF60

background

#FEFEFB

surface

#FBFBF2

border

#D4D4CC

text

#14140A

muted

#83837D

Preview Lab

Preview with #B1C73A

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

Preview Lab → · Contrast checker → · Palette generator →