#B1B01F#B1B01F

#B1B01F is a light, vivid yellow. Relative luminance 0.405; OKLCH L 73.5% C 0.152 H 109.2°. Best body text is #000000 at 9.10:1 contrast (WCAG AA passes).

Color values

HEX	#B1B01F
RGB	rgb(177, 176, 31)
HSL	hsl(60, 70%, 41%)
HSV	hsv(60, 82%, 69%)
CMYK	cmyk(0%, 0.6%, 82.5%, 30.6%)
CIE-LAB	lab(69.82, -15.32, 66.62)
CIE-LCH	lch(69.82, 68.36, 102.95°)
OKLab	oklab(73.46% -0.05 0.1435)
OKLCH	oklch(73.46% 0.152 109.2)
XYZ	xyz(33.9055, 40.4978, 7.3269)
Luminance	0.4050 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B1B01F #1F20B1

analogous

#B1671F #B1B01F #69B11F

triadic

#B1B01F #1FB1B0 #B01FB1

tetradic

#B1B01F #1FB167 #1F20B1 #B11F69

square

#B1B01F #1FB167 #1F20B1 #B11F69

split-complementary

#B1B01F #1F69B1 #671FB1

monochromatic

#49480D #7D7C16 #B1B01F #DBDA32 #E4E366

Accessibility & contrast

On white

2.31

#B1B01F on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.10

#B1B01F on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #B1B01F

9.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B1B01F	#FFFFFF	#000000	##000000
##B1B01F	1.00	2.31	9.10	9.10
#FFFFFF	2.31	1.00	21.00	21.00
#000000	9.10	21.00	1.00	1.00
##000000	9.10	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#BFA800

Deuteranopia (green-blind)

#C1AD2D

Tritanopia (blue-blind)

#BEA496

Achromatopsia (no color)

#ABABAB

Design tokens & code

CSS

--color: #b1b01f;
/* rgb */ color: rgb(177, 176, 31);
/* oklch */ color: oklch(73.5% 0.152 109.2);

Tailwind

colors: {
  custom: {
    50: '#ccc76a',
    500: '#b1b01f',
    950: '#000000',
  },
}

SCSS

$custom: #b1b01f;
$custom-light: #ccc76a;
$custom-dark: #000000;

JSON

{
  "hex": "#b1b01f",
  "rgb": {
    "r": 177,
    "g": 176,
    "b": 31
  },
  "hsl": {
    "h": 59.589,
    "s": 70.192,
    "l": 40.784
  },
  "oklch": {
    "l": 0.73461,
    "c": 0.15198,
    "h": 109.2
  },
  "luminance": 0.40497
}

Semantic roles & 50–950 ramp

primary

#B1B01F

secondary

#6263CA

accent

#3CED3B

background

#FDFCF6

surface

#FAF8EC

border

#D3D1C7

text

#141307

muted

#83827A

Preview Lab

Preview with #B1B01F

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

Preview Lab → · Contrast checker → · Palette generator →