#B0731B#B0731B

#B0731B is a mid, vivid orange. Relative luminance 0.216; OKLCH L 60.6% C 0.122 H 69.9°. Best body text is #000000 at 5.31:1 contrast (WCAG AA passes).

Color values

HEX	#B0731B
RGB	rgb(176, 115, 27)
HSL	hsl(35, 73%, 40%)
HSV	hsv(35, 85%, 69%)
CMYK	cmyk(0%, 34.7%, 84.7%, 31%)
CIE-LAB	lab(53.57, 17.18, 53.89)
CIE-LCH	lch(53.57, 56.56, 72.31°)
OKLab	oklab(60.61% 0.0421 0.1149)
OKLCH	oklch(60.61% 0.122 69.9)
XYZ	xyz(24.2350, 21.5730, 3.9244)
Luminance	0.2157 (WCAG relative)
Temperature	warm
Family	orange

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B0731B #1B58B0

analogous

#B0281B #B0731B #A3B01B

triadic

#B0731B #1BB073 #731BB0

tetradic

#B0731B #1BB028 #1B58B0 #B01BA3

square

#B0731B #1BB028 #1B58B0 #B01BA3

split-complementary

#B0731B #1BA3B0 #281BB0

monochromatic

#462E0B #7B5013 #B0731B #DE942A #E6AF5F

Accessibility & contrast

On white

3.95

#B0731B on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.31

#B0731B on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #B0731B

5.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B0731B	#FFFFFF	#000000	##000000
##B0731B	1.00	3.95	5.31	5.31
#FFFFFF	3.95	1.00	21.00	21.00
#000000	5.31	21.00	1.00	1.00
##000000	5.31	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#887705

Deuteranopia (green-blind)

#96861E

Tritanopia (blue-blind)

#C06463

Achromatopsia (no color)

#808080

Design tokens & code

CSS

--color: #b0731b;
/* rgb */ color: rgb(176, 115, 27);
/* oklch */ color: oklch(60.6% 0.122 69.9);

Tailwind

colors: {
  custom: {
    50: '#cd9b60',
    500: '#b0731b',
    950: '#000000',
  },
}

SCSS

$custom: #b0731b;
$custom-light: #cd9b60;
$custom-dark: #000000;

JSON

{
  "hex": "#b0731b",
  "rgb": {
    "r": 176,
    "g": 115,
    "b": 27
  },
  "hsl": {
    "h": 35.436,
    "s": 73.399,
    "l": 39.804
  },
  "oklch": {
    "l": 0.60605,
    "c": 0.12232,
    "h": 69.9
  },
  "luminance": 0.21571
}

Semantic roles & 50–950 ramp

primary

#B0731B

secondary

#5C89CB

accent

#83F038

background

#FDF9F5

surface

#FAF2EA

border

#D3CCC6

text

#150E05

muted

#837E79

Preview Lab

Preview with #B0731B

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

Preview Lab → · Contrast checker → · Palette generator →