#B3711B#B3711B

#B3711B is a mid, vivid orange. Relative luminance 0.215; OKLCH L 60.6% C 0.125 H 66.9°. Best body text is #000000 at 5.29:1 contrast (WCAG AA passes).

Color values

HEX	#B3711B
RGB	rgb(179, 113, 27)
HSL	hsl(34, 74%, 40%)
HSV	hsv(34, 85%, 70%)
CMYK	cmyk(0%, 36.9%, 84.9%, 29.8%)
CIE-LAB	lab(53.47, 19.63, 53.95)
CIE-LCH	lch(53.47, 57.41, 70.01°)
OKLab	oklab(60.61% 0.049 0.1148)
OKLCH	oklch(60.61% 0.125 66.9)
XYZ	xyz(24.6954, 21.4756, 3.8813)
Luminance	0.2147 (WCAG relative)
Temperature	warm
Family	orange

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B3711B #1B5DB3

analogous

#B3251B #B3711B #A9B31B

triadic

#B3711B #1BB371 #711BB3

tetradic

#B3711B #1BB325 #1B5DB3 #B31BA9

square

#B3711B #1BB325 #1B5DB3 #B31BA9

split-complementary

#B3711B #1BA9B3 #251BB3

monochromatic

#492E0B #7E4F13 #B3711B #DF912C #E7AD61

Accessibility & contrast

On white

3.97

#B3711B on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.29

#B3711B on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #B3711B

5.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B3711B	#FFFFFF	#000000	##000000
##B3711B	1.00	3.97	5.29	5.29
#FFFFFF	3.97	1.00	21.00	21.00
#000000	5.29	21.00	1.00	1.00
##000000	5.29	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#867606

Deuteranopia (green-blind)

#96861D

Tritanopia (blue-blind)

#C46161

Achromatopsia (no color)

#808080

Design tokens & code

CSS

--color: #b3711b;
/* rgb */ color: rgb(179, 113, 27);
/* oklch */ color: oklch(60.6% 0.125 66.9);

Tailwind

colors: {
  custom: {
    50: '#d09a60',
    500: '#b3711b',
    950: '#000000',
  },
}

SCSS

$custom: #b3711b;
$custom-light: #d09a60;
$custom-dark: #000000;

JSON

{
  "hex": "#b3711b",
  "rgb": {
    "r": 179,
    "g": 113,
    "b": 27
  },
  "hsl": {
    "h": 33.947,
    "s": 73.786,
    "l": 40.392
  },
  "oklch": {
    "l": 0.60605,
    "c": 0.12481,
    "h": 66.9
  },
  "luminance": 0.21473
}

Semantic roles & 50–950 ramp

primary

#B3711B

secondary

#5E8ECC

accent

#88F037

background

#FDF9F5

surface

#FBF2EA

border

#D4CCC6

text

#150E05

muted

#837E79

Preview Lab

Preview with #B3711B

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

Preview Lab → · Contrast checker → · Palette generator →