#B3751B#B3751B

#B3751B is a mid, vivid orange. Relative luminance 0.224; OKLCH L 61.4% C 0.124 H 70.0°. Best body text is #000000 at 5.48:1 contrast (WCAG AA passes).

Color values

HEX	#B3751B
RGB	rgb(179, 117, 27)
HSL	hsl(36, 74%, 40%)
HSV	hsv(36, 85%, 70%)
CMYK	cmyk(0%, 34.6%, 84.9%, 29.8%)
CIE-LAB	lab(54.44, 17.40, 54.77)
CIE-LCH	lch(54.44, 57.47, 72.37°)
OKLab	oklab(61.36% 0.0425 0.1166)
OKLCH	oklch(61.36% 0.124 70)
XYZ	xyz(25.1516, 22.3878, 4.0334)
Luminance	0.2238 (WCAG relative)
Temperature	warm
Family	orange

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B3751B #1B59B3

analogous

#B3291B #B3751B #A5B31B

triadic

#B3751B #1BB375 #751BB3

tetradic

#B3751B #1BB329 #1B59B3 #B31BA5

square

#B3751B #1BB329 #1B59B3 #B31BA5

split-complementary

#B3751B #1BA5B3 #291BB3

monochromatic

#492F0B #7E5213 #B3751B #DF962C #E7B161

Accessibility & contrast

On white

3.83

#B3751B on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.48

#B3751B on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #B3751B

5.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B3751B	#FFFFFF	#000000	##000000
##B3751B	1.00	3.83	5.48	5.48
#FFFFFF	3.83	1.00	21.00	21.00
#000000	5.48	21.00	1.00	1.00
##000000	5.48	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8A7904

Deuteranopia (green-blind)

#98881E

Tritanopia (blue-blind)

#C46664

Achromatopsia (no color)

#828282

Design tokens & code

CSS

--color: #b3751b;
/* rgb */ color: rgb(179, 117, 27);
/* oklch */ color: oklch(61.4% 0.124 70.0);

Tailwind

colors: {
  custom: {
    50: '#d09c61',
    500: '#b3751b',
    950: '#000000',
  },
}

SCSS

$custom: #b3751b;
$custom-light: #d09c61;
$custom-dark: #000000;

JSON

{
  "hex": "#b3751b",
  "rgb": {
    "r": 179,
    "g": 117,
    "b": 27
  },
  "hsl": {
    "h": 35.526,
    "s": 73.786,
    "l": 40.392
  },
  "oklch": {
    "l": 0.61359,
    "c": 0.12411,
    "h": 70
  },
  "luminance": 0.22385
}

Semantic roles & 50–950 ramp

primary

#B3751B

secondary

#5E8BCC

accent

#83F037

background

#FDF9F6

surface

#FBF2EB

border

#D4CCC6

text

#150E05

muted

#837E7A

Preview Lab

Preview with #B3751B

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

Preview Lab → · Contrast checker → · Palette generator →