#B1B528#B1B528

#B1B528 is a light, vivid yellow. Relative luminance 0.425; OKLCH L 74.6% C 0.153 H 111.3°. Best body text is #000000 at 9.51:1 contrast (WCAG AA passes).

Color values

HEX	#B1B528
RGB	rgb(177, 181, 40)
HSL	hsl(62, 64%, 43%)
HSV	hsv(62, 78%, 71%)
CMYK	cmyk(2.2%, 0%, 77.9%, 29%)
CIE-LAB	lab(71.25, -17.55, 65.37)
CIE-LCH	lch(71.25, 67.69, 105.03°)
OKLab	oklab(74.61% -0.0555 0.1425)
OKLCH	oklch(74.61% 0.153 111.3)
XYZ	xyz(35.0396, 42.5490, 8.3741)
Luminance	0.4255 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B1B528 #2C28B5

analogous

#B57228 #B1B528 #6AB528

triadic

#B1B528 #28B1B5 #B528B1

tetradic

#B1B528 #28B572 #2C28B5 #B5286A

square

#B1B528 #28B572 #2C28B5 #B5286A

split-complementary

#B1B528 #286AB5 #7228B5

monochromatic

#4F5112 #80831D #B1B528 #D2D644 #DEE177

Accessibility & contrast

On white

2.21

#B1B528 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.51

#B1B528 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #B1B528

9.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B1B528	#FFFFFF	#000000	##000000
##B1B528	1.00	2.21	9.51	9.51
#FFFFFF	2.21	1.00	21.00	21.00
#000000	9.51	21.00	1.00	1.00
##000000	9.51	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#C4AD00

Deuteranopia (green-blind)

#C4B035

Tritanopia (blue-blind)

#BEA99B

Achromatopsia (no color)

#AEAEAE

Design tokens & code

CSS

--color: #b1b528;
/* rgb */ color: rgb(177, 181, 40);
/* oklch */ color: oklch(74.6% 0.153 111.3);

Tailwind

colors: {
  custom: {
    50: '#ccca6f',
    500: '#b1b528',
    950: '#000000',
  },
}

SCSS

$custom: #b1b528;
$custom-light: #ccca6f;
$custom-dark: #000000;

JSON

{
  "hex": "#b1b528",
  "rgb": {
    "r": 177,
    "g": 181,
    "b": 40
  },
  "hsl": {
    "h": 61.702,
    "s": 63.801,
    "l": 43.333
  },
  "oklch": {
    "l": 0.74612,
    "c": 0.15289,
    "h": 111.3
  },
  "luminance": 0.42548
}

Semantic roles & 50–950 ramp

primary

#B1B528

secondary

#7370C8

accent

#41E746

background

#FDFCF7

surface

#FAF8ED

border

#D3D1C8

text

#141308

muted

#83827B

Preview Lab

Preview with #B1B528

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

Preview Lab → · Contrast checker → · Palette generator →