#B1C529#B1C529

#B1C529 is a light, vivid yellow. Relative luminance 0.494; OKLCH L 78.2% C 0.169 H 117.1°. Best body text is #000000 at 10.89:1 contrast (WCAG AA passes).

Color values

HEX	#B1C529
RGB	rgb(177, 197, 41)
HSL	hsl(68, 66%, 47%)
HSV	hsv(68, 79%, 77%)
CMYK	cmyk(10.2%, 0%, 79.2%, 22.7%)
CIE-LAB	lab(75.72, -25.42, 69.09)
CIE-LCH	lch(75.72, 73.62, 110.20°)
OKLab	oklab(78.21% -0.0771 0.1506)
OKLCH	oklch(78.21% 0.169 117.1)
XYZ	xyz(38.4990, 49.4402, 9.6122)
Luminance	0.4944 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B1C529 #3D29C5

analogous

#C58B29 #B1C529 #63C529

triadic

#B1C529 #29B1C5 #C529B1

tetradic

#B1C529 #29C58B #3D29C5 #C52963

square

#B1C529 #29C58B #3D29C5 #C52963

split-complementary

#B1C529 #2963C5 #8B29C5

monochromatic

#566014 #83921E #B1C529 #C9DB51 #D9E583

Accessibility & contrast

On white

1.93

#B1C529 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.89

#B1C529 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #B1C529

10.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B1C529	#FFFFFF	#000000	##000000
##B1C529	1.00	1.93	10.89	10.89
#FFFFFF	1.93	1.00	21.00	21.00
#000000	10.89	21.00	1.00	1.00
##000000	10.89	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#D3BA00

Deuteranopia (green-blind)

#D1BB39

Tritanopia (blue-blind)

#BCBAA9

Achromatopsia (no color)

#BBBBBB

Design tokens & code

CSS

--color: #b1c529;
/* rgb */ color: rgb(177, 197, 41);
/* oklch */ color: oklch(78.2% 0.169 117.1);

Tailwind

colors: {
  custom: {
    50: '#ccd671',
    500: '#b1c529',
    950: '#000000',
  },
}

SCSS

$custom: #b1c529;
$custom-light: #ccd671;
$custom-dark: #000000;

JSON

{
  "hex": "#b1c529",
  "rgb": {
    "r": 177,
    "g": 197,
    "b": 41
  },
  "hsl": {
    "h": 67.692,
    "s": 65.546,
    "l": 46.667
  },
  "oklch": {
    "l": 0.78205,
    "c": 0.1692,
    "h": 117.1
  },
  "luminance": 0.4944
}

Semantic roles & 50–950 ramp

primary

#B1C529

secondary

#867CCE

accent

#3FE855

background

#FDFDF7

surface

#FAFAED

border

#D3D3C8

text

#141409

muted

#83837B

Preview Lab

Preview with #B1C529

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

Preview Lab → · Contrast checker → · Palette generator →