#B4521F#B4521F

#B4521F is a mid, vivid orange. Relative luminance 0.158; OKLCH L 55.5% C 0.142 H 44.6°. Best body text is #FFFFFF at 5.04:1 contrast (WCAG AA passes).

Color values

HEX	#B4521F
RGB	rgb(180, 82, 31)
HSL	hsl(21, 71%, 41%)
HSV	hsv(21, 83%, 71%)
CMYK	cmyk(0%, 54.4%, 82.8%, 29.4%)
CIE-LAB	lab(46.76, 36.88, 46.56)
CIE-LCH	lch(46.76, 59.39, 51.62°)
OKLab	oklab(55.49% 0.1008 0.0995)
OKLCH	oklch(55.49% 0.142 44.6)
XYZ	xyz(22.0893, 15.8397, 3.1902)
Luminance	0.1584 (WCAG relative)
Temperature	warm
Family	orange

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B4521F #1F81B4

analogous

#B41F37 #B4521F #B49D1F

triadic

#B4521F #1FB452 #521FB4

tetradic

#B4521F #37B41F #1F81B4 #9D1FB4

square

#B4521F #37B41F #1F81B4 #9D1FB4

split-complementary

#B4521F #1FB49D #1F37B4

monochromatic

#4C220D #803A16 #B4521F #DC6E34 #E59368

Accessibility & contrast

On white

5.04

#B4521F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.17

#B4521F on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B4521F

5.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B4521F	#FFFFFF	#000000	##FFFFFF
##B4521F	1.00	5.04	4.17	5.04
#FFFFFF	5.04	1.00	21.00	1.00
#000000	4.17	21.00	1.00	21.00
##FFFFFF	5.04	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#6E6117

Deuteranopia (green-blind)

#86771C

Tritanopia (blue-blind)

#C63C48

Achromatopsia (no color)

#6F6F6F

Design tokens & code

CSS

--color: #b4521f;
/* rgb */ color: rgb(180, 82, 31);
/* oklch */ color: oklch(55.5% 0.142 44.6);

Tailwind

colors: {
  custom: {
    50: '#d2855f',
    500: '#b4521f',
    950: '#000000',
  },
}

SCSS

$custom: #b4521f;
$custom-light: #d2855f;
$custom-dark: #000000;

JSON

{
  "hex": "#b4521f",
  "rgb": {
    "r": 180,
    "g": 82,
    "b": 31
  },
  "hsl": {
    "h": 20.537,
    "s": 70.616,
    "l": 41.373
  },
  "oklch": {
    "l": 0.55488,
    "c": 0.14165,
    "h": 44.6
  },
  "luminance": 0.15837
}

Semantic roles & 50–950 ramp

primary

#B4521F

secondary

#64A8CB

accent

#B0ED3A

background

#FEF8F5

surface

#FCEFE9

border

#D5CAC5

text

#160B05

muted

#847C79

Preview Lab

Preview with #B4521F

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

Preview Lab → · Contrast checker → · Palette generator →