#B3731A#B3731A

#B3731A is a mid, vivid orange. Relative luminance 0.219; OKLCH L 61.0% C 0.125 H 68.6°. Best body text is #000000 at 5.38:1 contrast (WCAG AA passes).

Color values

HEX	#B3731A
RGB	rgb(179, 115, 26)
HSL	hsl(35, 75%, 40%)
HSV	hsv(35, 85%, 70%)
CMYK	cmyk(0%, 35.8%, 85.5%, 29.8%)
CIE-LAB	lab(53.94, 18.49, 54.69)
CIE-LCH	lch(53.94, 57.73, 71.32°)
OKLab	oklab(60.98% 0.0456 0.1162)
OKLCH	oklch(60.98% 0.125 68.6)
XYZ	xyz(24.9097, 21.9222, 3.8966)
Luminance	0.2192 (WCAG relative)
Temperature	warm
Family	orange

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B3731A #1A5AB3

analogous

#B3271A #B3731A #A6B31A

triadic

#B3731A #1AB373 #731AB3

tetradic

#B3731A #1AB327 #1A5AB3 #B31AA6

square

#B3731A #1AB327 #1A5AB3 #B31AA6

split-complementary

#B3731A #1AA6B3 #271AB3

monochromatic

#482E0A #7E5112 #B3731A #E0942A #E8AF60

Accessibility & contrast

On white

3.90

#B3731A on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.38

#B3731A on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #B3731A

5.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B3731A	#FFFFFF	#000000	##000000
##B3731A	1.00	3.90	5.38	5.38
#FFFFFF	3.90	1.00	21.00	21.00
#000000	5.38	21.00	1.00	1.00
##000000	5.38	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#887803

Deuteranopia (green-blind)

#97871D

Tritanopia (blue-blind)

#C46363

Achromatopsia (no color)

#818181

Design tokens & code

CSS

--color: #b3731a;
/* rgb */ color: rgb(179, 115, 26);
/* oklch */ color: oklch(61.0% 0.125 68.6);

Tailwind

colors: {
  custom: {
    50: '#d09b60',
    500: '#b3731a',
    950: '#000000',
  },
}

SCSS

$custom: #b3731a;
$custom-light: #d09b60;
$custom-dark: #000000;

JSON

{
  "hex": "#b3731a",
  "rgb": {
    "r": 179,
    "g": 115,
    "b": 26
  },
  "hsl": {
    "h": 34.902,
    "s": 74.634,
    "l": 40.196
  },
  "oklch": {
    "l": 0.60975,
    "c": 0.12478,
    "h": 68.6
  },
  "luminance": 0.2192
}

Semantic roles & 50–950 ramp

primary

#B3731A

secondary

#5D8BCC

accent

#85F137

background

#FDF9F5

surface

#FBF2EA

border

#D4CCC6

text

#150E05

muted

#837E79

Preview Lab

Preview with #B3731A

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

Preview Lab → · Contrast checker → · Palette generator →