#B0521F#B0521F

#B0521F is a mid, vivid orange. Relative luminance 0.154; OKLCH L 54.9% C 0.137 H 45.5°. Best body text is #FFFFFF at 5.16:1 contrast (WCAG AA passes).

Color values

HEX	#B0521F
RGB	rgb(176, 82, 31)
HSL	hsl(21, 70%, 41%)
HSV	hsv(21, 82%, 69%)
CMYK	cmyk(0%, 53.4%, 82.4%, 31%)
CIE-LAB	lab(46.13, 35.28, 45.75)
CIE-LCH	lch(46.13, 57.77, 52.36°)
OKLab	oklab(54.88% 0.0963 0.0981)
OKLCH	oklch(54.88% 0.137 45.5)
XYZ	xyz(21.1713, 15.3663, 3.1472)
Luminance	0.1536 (WCAG relative)
Temperature	warm
Family	orange

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B0521F #1F7DB0

analogous

#B01F35 #B0521F #B09A1F

triadic

#B0521F #1FB052 #521FB0

tetradic

#B0521F #35B01F #1F7DB0 #9A1FB0

square

#B0521F #35B01F #1F7DB0 #9A1FB0

split-complementary

#B0521F #1FB09A #1F35B0

monochromatic

#48220D #7C3A16 #B0521F #DB6D31 #E49265

Accessibility & contrast

On white

5.16

#B0521F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.07

#B0521F on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B0521F

5.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B0521F	#FFFFFF	#000000	##FFFFFF
##B0521F	1.00	5.16	4.07	5.16
#FFFFFF	5.16	1.00	21.00	1.00
#000000	4.07	21.00	1.00	21.00
##FFFFFF	5.16	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#6D6017

Deuteranopia (green-blind)

#84751C

Tritanopia (blue-blind)

#C13D48

Achromatopsia (no color)

#6D6D6D

Design tokens & code

CSS

--color: #b0521f;
/* rgb */ color: rgb(176, 82, 31);
/* oklch */ color: oklch(54.9% 0.137 45.5);

Tailwind

colors: {
  custom: {
    50: '#cf855f',
    500: '#b0521f',
    950: '#000000',
  },
}

SCSS

$custom: #b0521f;
$custom-light: #cf855f;
$custom-dark: #000000;

JSON

{
  "hex": "#b0521f",
  "rgb": {
    "r": 176,
    "g": 82,
    "b": 31
  },
  "hsl": {
    "h": 21.103,
    "s": 70.048,
    "l": 40.588
  },
  "oklch": {
    "l": 0.54882,
    "c": 0.13744,
    "h": 45.5
  },
  "luminance": 0.15364
}

Semantic roles & 50–950 ramp

primary

#B0521F

secondary

#62A5C9

accent

#AEED3B

background

#FDF8F5

surface

#FBEFE9

border

#D4CAC5

text

#150B05

muted

#837C79

Preview Lab

Preview with #B0521F

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

Preview Lab → · Contrast checker → · Palette generator →