#B1901F#B1901F

#B1901F is a light, vivid yellow. Relative luminance 0.294; OKLCH L 66.6% C 0.127 H 91.1°. Best body text is #000000 at 6.88:1 contrast (WCAG AA passes).

Color values

HEX	#B1901F
RGB	rgb(177, 144, 31)
HSL	hsl(46, 70%, 41%)
HSV	hsv(46, 82%, 69%)
CMYK	cmyk(0%, 18.6%, 82.5%, 30.6%)
CIE-LAB	lab(61.13, 1.64, 59.15)
CIE-LCH	lch(61.13, 59.18, 88.41°)
OKLab	oklab(66.56% -0.0024 0.1273)
OKLCH	oklch(66.56% 0.127 91.1)
XYZ	xyz(28.3538, 29.3944, 5.4763)
Luminance	0.2939 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B1901F #1F40B1

analogous

#B1471F #B1901F #89B11F

triadic

#B1901F #1FB190 #901FB1

tetradic

#B1901F #1FB147 #1F40B1 #B11F89

square

#B1901F #1FB147 #1F40B1 #B11F89

split-complementary

#B1901F #1F89B1 #471FB1

monochromatic

#493B0D #7D6616 #B1901F #DBB532 #E4C866

Accessibility & contrast

On white

3.05

#B1901F on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.88

#B1901F on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #B1901F

6.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B1901F	#FFFFFF	#000000	##000000
##B1901F	1.00	3.05	6.88	6.88
#FFFFFF	3.05	1.00	21.00	21.00
#000000	6.88	21.00	1.00	1.00
##000000	6.88	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A18E00

Deuteranopia (green-blind)

#A99727

Tritanopia (blue-blind)

#C0837B

Achromatopsia (no color)

#939393

Design tokens & code

CSS

--color: #b1901f;
/* rgb */ color: rgb(177, 144, 31);
/* oklch */ color: oklch(66.6% 0.127 91.1);

Tailwind

colors: {
  custom: {
    50: '#cdb066',
    500: '#b1901f',
    950: '#000000',
  },
}

SCSS

$custom: #b1901f;
$custom-light: #cdb066;
$custom-dark: #000000;

JSON

{
  "hex": "#b1901f",
  "rgb": {
    "r": 177,
    "g": 144,
    "b": 31
  },
  "hsl": {
    "h": 46.438,
    "s": 70.192,
    "l": 40.784
  },
  "oklch": {
    "l": 0.66556,
    "c": 0.12732,
    "h": 91.1
  },
  "luminance": 0.29393
}

Semantic roles & 50–950 ramp

primary

#B1901F

secondary

#627ACA

accent

#63ED3B

background

#FDFAF6

surface

#FAF4EB

border

#D3CEC6

text

#141006

muted

#837F7A

Preview Lab

Preview with #B1901F

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

Preview Lab → · Contrast checker → · Palette generator →