#B3731E#B3731E

#B3731E is a mid, vivid orange. Relative luminance 0.219; OKLCH L 61.0% C 0.123 H 67.9°. Best body text is #000000 at 5.39:1 contrast (WCAG AA passes).

Color values

HEX	#B3731E
RGB	rgb(179, 115, 30)
HSL	hsl(34, 71%, 41%)
HSV	hsv(34, 83%, 70%)
CMYK	cmyk(0%, 35.8%, 83.2%, 29.8%)
CIE-LAB	lab(53.96, 18.61, 53.33)
CIE-LCH	lch(53.96, 56.48, 70.77°)
OKLab	oklab(61% 0.0464 0.1142)
OKLCH	oklch(61% 0.123 67.9)
XYZ	xyz(24.9575, 21.9413, 4.1488)
Luminance	0.2194 (WCAG relative)
Temperature	warm
Family	orange

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B3731E #1E5EB3

analogous

#B3281E #B3731E #A8B31E

triadic

#B3731E #1EB373 #731EB3

tetradic

#B3731E #1EB328 #1E5EB3 #B31EA8

square

#B3731E #1EB328 #1E5EB3 #B31EA8

split-complementary

#B3731E #1EA8B3 #281EB3

monochromatic

#4A300C #7F5115 #B3731E #DD9332 #E5AF66

Accessibility & contrast

On white

3.90

#B3731E on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.39

#B3731E on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #B3731E

5.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B3731E	#FFFFFF	#000000	##000000
##B3731E	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)

#88780C

Deuteranopia (green-blind)

#978720

Tritanopia (blue-blind)

#C46463

Achromatopsia (no color)

#818181

Design tokens & code

CSS

--color: #b3731e;
/* rgb */ color: rgb(179, 115, 30);
/* oklch */ color: oklch(61.0% 0.123 67.9);

Tailwind

colors: {
  custom: {
    50: '#d09b62',
    500: '#b3731e',
    950: '#000000',
  },
}

SCSS

$custom: #b3731e;
$custom-light: #d09b62;
$custom-dark: #000000;

JSON

{
  "hex": "#b3731e",
  "rgb": {
    "r": 179,
    "g": 115,
    "b": 30
  },
  "hsl": {
    "h": 34.228,
    "s": 71.292,
    "l": 40.98
  },
  "oklch": {
    "l": 0.60997,
    "c": 0.12326,
    "h": 67.9
  },
  "luminance": 0.21939
}

Semantic roles & 50–950 ramp

primary

#B3731E

secondary

#628FCB

accent

#87EE3A

background

#FDF9F6

surface

#FBF2EB

border

#D4CCC6

text

#150E05

muted

#837E7A

Preview Lab

Preview with #B3731E

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

Preview Lab → · Contrast checker → · Palette generator →