#B3731C#B3731C

#B3731C is a mid, vivid orange. Relative luminance 0.219; OKLCH L 61.0% C 0.124 H 68.2°. Best body text is #000000 at 5.39:1 contrast (WCAG AA passes).

Color values

HEX	#B3731C
RGB	rgb(179, 115, 28)
HSL	hsl(35, 73%, 41%)
HSV	hsv(35, 84%, 70%)
CMYK	cmyk(0%, 35.8%, 84.4%, 29.8%)
CIE-LAB	lab(53.95, 18.55, 54.02)
CIE-LCH	lch(53.95, 57.12, 71.05°)
OKLab	oklab(60.99% 0.046 0.1152)
OKLCH	oklch(60.99% 0.124 68.2)
XYZ	xyz(24.9328, 21.9315, 4.0185)
Luminance	0.2193 (WCAG relative)
Temperature	warm
Family	orange

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B3731C #1C5CB3

analogous

#B3281C #B3731C #A7B31C

triadic

#B3731C #1CB373 #731CB3

tetradic

#B3731C #1CB328 #1C5CB3 #B31CA7

square

#B3731C #1CB328 #1C5CB3 #B31CA7

split-complementary

#B3731C #1CA7B3 #281CB3

monochromatic

#492F0B #7E5114 #B3731C #DE942E #E7AF63

Accessibility & contrast

On white

3.90

#B3731C on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.39

#B3731C on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #B3731C

5.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B3731C	#FFFFFF	#000000	##000000
##B3731C	1.00	3.90	5.39	5.39
#FFFFFF	3.90	1.00	21.00	21.00
#000000	5.39	21.00	1.00	1.00
##000000	5.39	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#887807

Deuteranopia (green-blind)

#97871E

Tritanopia (blue-blind)

#C46363

Achromatopsia (no color)

#818181

Design tokens & code

CSS

--color: #b3731c;
/* rgb */ color: rgb(179, 115, 28);
/* oklch */ color: oklch(61.0% 0.124 68.2);

Tailwind

colors: {
  custom: {
    50: '#d09b61',
    500: '#b3731c',
    950: '#000000',
  },
}

SCSS

$custom: #b3731c;
$custom-light: #d09b61;
$custom-dark: #000000;

JSON

{
  "hex": "#b3731c",
  "rgb": {
    "r": 179,
    "g": 115,
    "b": 28
  },
  "hsl": {
    "h": 34.57,
    "s": 72.947,
    "l": 40.588
  },
  "oklch": {
    "l": 0.60986,
    "c": 0.12404,
    "h": 68.2
  },
  "luminance": 0.21929
}

Semantic roles & 50–950 ramp

primary

#B3731C

secondary

#5F8DCB

accent

#86F038

background

#FDF9F6

surface

#FBF2EB

border

#D4CCC6

text

#150E05

muted

#837E7A

Preview Lab

Preview with #B3731C

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

Preview Lab → · Contrast checker → · Palette generator →