#B55730#B55730

#B55730 is a mid, vivid orange. Relative luminance 0.169; OKLCH L 56.6% C 0.133 H 42.0°. Best body text is #FFFFFF at 4.80:1 contrast (WCAG AA passes).

Color values

HEX	#B55730
RGB	rgb(181, 87, 48)
HSL	hsl(18, 58%, 45%)
HSV	hsv(18, 73%, 71%)
CMYK	cmyk(0%, 51.9%, 73.5%, 29%)
CIE-LAB	lab(48.08, 35.38, 39.64)
CIE-LCH	lch(48.08, 53.13, 48.25°)
OKLab	oklab(56.57% 0.099 0.089)
OKLCH	oklch(56.57% 0.133 42)
XYZ	xyz(22.9999, 16.8564, 4.8382)
Luminance	0.1685 (WCAG relative)
Temperature	warm
Family	orange

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B55730 #308EB5

analogous

#B5304B #B55730 #B59A30

triadic

#B55730 #30B557 #5730B5

tetradic

#B55730 #4BB530 #308EB5 #9A30B5

square

#B55730 #4BB530 #308EB5 #9A30B5

split-complementary

#B55730 #30B59A #304BB5

monochromatic

#542816 #854023 #B55730 #D17751 #DE9D82

Accessibility & contrast

On white

4.80

#B55730 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.37

#B55730 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B55730

4.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B55730	#FFFFFF	#000000	##FFFFFF
##B55730	1.00	4.80	4.37	4.80
#FFFFFF	4.80	1.00	21.00	1.00
#000000	4.37	21.00	1.00	21.00
##FFFFFF	4.80	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#71652C

Deuteranopia (green-blind)

#887A2E

Tritanopia (blue-blind)

#C6434E

Achromatopsia (no color)

#727272

Design tokens & code

CSS

--color: #b55730;
/* rgb */ color: rgb(181, 87, 48);
/* oklch */ color: oklch(56.6% 0.133 42.0);

Tailwind

colors: {
  custom: {
    50: '#d2886a',
    500: '#b55730',
    950: '#000000',
  },
}

SCSS

$custom: #b55730;
$custom-light: #d2886a;
$custom-dark: #000000;

JSON

{
  "hex": "#b55730",
  "rgb": {
    "r": 181,
    "g": 87,
    "b": 48
  },
  "hsl": {
    "h": 17.594,
    "s": 58.079,
    "l": 44.902
  },
  "oklch": {
    "l": 0.56568,
    "c": 0.13312,
    "h": 42
  },
  "luminance": 0.16854
}

Semantic roles & 50–950 ramp

primary

#B55730

secondary

#7AB0C7

accent

#B4E146

background

#FDF8F6

surface

#FBF0EB

border

#D4CBC6

text

#150B06

muted

#837C7A

Preview Lab

Preview with #B55730

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

Preview Lab → · Contrast checker → · Palette generator →