#B55028#B55028

#B55028 is a mid, vivid orange. Relative luminance 0.157; OKLCH L 55.4% C 0.142 H 40.8°. Best body text is #FFFFFF at 5.07:1 contrast (WCAG AA passes).

Color values

HEX	#B55028
RGB	rgb(181, 80, 40)
HSL	hsl(17, 64%, 43%)
HSV	hsv(17, 78%, 71%)
CMYK	cmyk(0%, 55.8%, 77.9%, 29%)
CIE-LAB	lab(46.60, 38.60, 42.20)
CIE-LCH	lch(46.60, 57.19, 47.55°)
OKLab	oklab(55.42% 0.1074 0.0926)
OKLCH	oklch(55.42% 0.142 40.8)
XYZ	xyz(22.3100, 15.7172, 3.8660)
Luminance	0.1571 (WCAG relative)
Temperature	warm
Family	orange

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B55028 #288DB5

analogous

#B52847 #B55028 #B59628

triadic

#B55028 #28B550 #5028B5

tetradic

#B55028 #47B528 #288DB5 #9628B5

square

#B55028 #47B528 #288DB5 #9628B5

split-complementary

#B55028 #28B596 #2847B5

monochromatic

#512412 #833A1D #B55028 #D66E44 #E19577

Accessibility & contrast

On white

5.07

#B55028 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.14

#B55028 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B55028

5.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B55028	#FFFFFF	#000000	##FFFFFF
##B55028	1.00	5.07	4.14	5.07
#FFFFFF	5.07	1.00	21.00	1.00
#000000	4.14	21.00	1.00	21.00
##FFFFFF	5.07	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#6C6023

Deuteranopia (green-blind)

#857725

Tritanopia (blue-blind)

#C73948

Achromatopsia (no color)

#6E6E6E

Design tokens & code

CSS

--color: #b55028;
/* rgb */ color: rgb(181, 80, 40);
/* oklch */ color: oklch(55.4% 0.142 40.8);

Tailwind

colors: {
  custom: {
    50: '#d28464',
    500: '#b55028',
    950: '#000000',
  },
}

SCSS

$custom: #b55028;
$custom-light: #d28464;
$custom-dark: #000000;

JSON

{
  "hex": "#b55028",
  "rgb": {
    "r": 181,
    "g": 80,
    "b": 40
  },
  "hsl": {
    "h": 17.021,
    "s": 63.801,
    "l": 43.333
  },
  "oklch": {
    "l": 0.55419,
    "c": 0.14181,
    "h": 40.8
  },
  "luminance": 0.15714
}

Semantic roles & 50–950 ramp

primary

#B55028

secondary

#70AFC8

accent

#B8E741

background

#FDF8F6

surface

#FBEFEB

border

#D4CAC6

text

#150B06

muted

#837C7A

Preview Lab

Preview with #B55028

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

Preview Lab → · Contrast checker → · Palette generator →