#B3583E#B3583E

#B3583E is a mid, vivid red. Relative luminance 0.169; OKLCH L 56.6% C 0.125 H 36.8°. Best body text is #FFFFFF at 4.79:1 contrast (WCAG AA passes).

Color values

HEX	#B3583E
RGB	rgb(179, 88, 62)
HSL	hsl(13, 49%, 47%)
HSV	hsv(13, 65%, 70%)
CMYK	cmyk(0%, 50.8%, 65.4%, 29.8%)
CIE-LAB	lab(48.15, 34.85, 31.99)
CIE-LCH	lch(48.15, 47.30, 42.55°)
OKLab	oklab(56.62% 0.1001 0.0749)
OKLCH	oklch(56.62% 0.125 36.8)
XYZ	xyz(22.9516, 16.9137, 6.6125)
Luminance	0.1691 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B3583E #3E99B3

analogous

#B33E5F #B3583E #B3923E

triadic

#B3583E #3EB358 #583EB3

tetradic

#B3583E #5FB33E #3E99B3 #923EB3

square

#B3583E #5FB33E #3E99B3 #923EB3

split-complementary

#B3583E #3EB392 #3E5FB3

monochromatic

#582B1F #86422E #B3583E #CA7B65 #D9A292

Accessibility & contrast

On white

4.79

#B3583E on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.38

#B3583E on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B3583E

4.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B3583E	#FFFFFF	#000000	##FFFFFF
##B3583E	1.00	4.79	4.38	4.79
#FFFFFF	4.79	1.00	21.00	1.00
#000000	4.38	21.00	1.00	21.00
##FFFFFF	4.79	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#70663B

Deuteranopia (green-blind)

#867A3C

Tritanopia (blue-blind)

#C44752

Achromatopsia (no color)

#727272

Design tokens & code

CSS

--color: #b3583e;
/* rgb */ color: rgb(179, 88, 62);
/* oklch */ color: oklch(56.6% 0.125 36.8);

Tailwind

colors: {
  custom: {
    50: '#cf8974',
    500: '#b3583e',
    950: '#000000',
  },
}

SCSS

$custom: #b3583e;
$custom-light: #cf8974;
$custom-dark: #000000;

JSON

{
  "hex": "#b3583e",
  "rgb": {
    "r": 179,
    "g": 88,
    "b": 62
  },
  "hsl": {
    "h": 13.333,
    "s": 48.548,
    "l": 47.255
  },
  "oklch": {
    "l": 0.56617,
    "c": 0.125,
    "h": 36.8
  },
  "luminance": 0.16911
}

Semantic roles & 50–950 ramp

primary

#B3583E

secondary

#88B7C5

accent

#BAD850

background

#FDF8F7

surface

#FAF0ED

border

#D3CBC8

text

#150C08

muted

#837D7B

Preview Lab

Preview with #B3583E

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

Preview Lab → · Contrast checker → · Palette generator →