#B3751F#B3751F

#B3751F is a mid, vivid orange. Relative luminance 0.224; OKLCH L 61.4% C 0.123 H 69.3°. Best body text is #000000 at 5.48:1 contrast (WCAG AA passes).

Color values

HEX	#B3751F
RGB	rgb(179, 117, 31)
HSL	hsl(35, 70%, 41%)
HSV	hsv(35, 83%, 70%)
CMYK	cmyk(0%, 34.6%, 82.7%, 29.8%)
CIE-LAB	lab(54.46, 17.52, 53.40)
CIE-LCH	lch(54.46, 56.20, 71.83°)
OKLab	oklab(61.38% 0.0433 0.1146)
OKLCH	oklch(61.38% 0.123 69.3)
XYZ	xyz(25.2010, 22.4076, 4.2939)
Luminance	0.2240 (WCAG relative)
Temperature	warm
Family	orange

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B3751F #1F5DB3

analogous

#B32B1F #B3751F #A7B31F

triadic

#B3751F #1FB375 #751FB3

tetradic

#B3751F #1FB32B #1F5DB3 #B31FA7

square

#B3751F #1FB32B #1F5DB3 #B31FA7

split-complementary

#B3751F #1FA7B3 #2B1FB3

monochromatic

#4B310D #7F5316 #B3751F #DC9533 #E5B068

Accessibility & contrast

On white

3.83

#B3751F on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.48

#B3751F on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #B3751F

5.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B3751F	#FFFFFF	#000000	##000000
##B3751F	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)

#8A790D

Deuteranopia (green-blind)

#988821

Tritanopia (blue-blind)

#C46665

Achromatopsia (no color)

#828282

Design tokens & code

CSS

--color: #b3751f;
/* rgb */ color: rgb(179, 117, 31);
/* oklch */ color: oklch(61.4% 0.123 69.3);

Tailwind

colors: {
  custom: {
    50: '#cf9c63',
    500: '#b3751f',
    950: '#000000',
  },
}

SCSS

$custom: #b3751f;
$custom-light: #cf9c63;
$custom-dark: #000000;

JSON

{
  "hex": "#b3751f",
  "rgb": {
    "r": 179,
    "g": 117,
    "b": 31
  },
  "hsl": {
    "h": 34.865,
    "s": 70.476,
    "l": 41.176
  },
  "oklch": {
    "l": 0.61381,
    "c": 0.12253,
    "h": 69.3
  },
  "luminance": 0.22405
}

Semantic roles & 50–950 ramp

primary

#B3751F

secondary

#648FCA

accent

#85ED3B

background

#FDF9F6

surface

#FBF2EB

border

#D4CCC6

text

#150E06

muted

#837E7A

Preview Lab

Preview with #B3751F

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

Preview Lab → · Contrast checker → · Palette generator →