#B53A22#B53A22

#B53A22 is a mid, vivid red. Relative luminance 0.130; OKLCH L 52.5% C 0.163 H 33.0°. Best body text is #FFFFFF at 5.84:1 contrast (WCAG AA passes).

Color values

HEX	#B53A22
RGB	rgb(181, 58, 34)
HSL	hsl(10, 68%, 42%)
HSV	hsv(10, 81%, 71%)
CMYK	cmyk(0%, 68%, 81.2%, 29%)
CIE-LAB	lab(42.72, 48.51, 41.38)
CIE-LCH	lch(42.72, 63.77, 40.47°)
OKLab	oklab(52.47% 0.1369 0.089)
OKLCH	oklch(52.47% 0.163 33)
XYZ	xyz(20.8602, 12.9685, 2.9178)
Luminance	0.1296 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B53A22 #229DB5

analogous

#B52254 #B53A22 #B58422

triadic

#B53A22 #22B53A #3A22B5

tetradic

#B53A22 #54B522 #229DB5 #8422B5

square

#B53A22 #54B522 #229DB5 #8422B5

split-complementary

#B53A22 #22B584 #2254B5

monochromatic

#4E190F #812918 #B53A22 #DA543A #E4816E

Accessibility & contrast

On white

5.84

#B53A22 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.59

#B53A22 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B53A22

5.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B53A22	#FFFFFF	#000000	##FFFFFF
##B53A22	1.00	5.84	3.59	5.84
#FFFFFF	5.84	1.00	21.00	1.00
#000000	3.59	21.00	1.00	21.00
##FFFFFF	5.84	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5E541E

Deuteranopia (green-blind)

#7C6F1C

Tritanopia (blue-blind)

#C71136

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #b53a22;
/* rgb */ color: rgb(181, 58, 34);
/* oklch */ color: oklch(52.5% 0.163 33.0);

Tailwind

colors: {
  custom: {
    50: '#d4775f',
    500: '#b53a22',
    950: '#000000',
  },
}

SCSS

$custom: #b53a22;
$custom-light: #d4775f;
$custom-dark: #000000;

JSON

{
  "hex": "#b53a22",
  "rgb": {
    "r": 181,
    "g": 58,
    "b": 34
  },
  "hsl": {
    "h": 9.796,
    "s": 68.372,
    "l": 42.157
  },
  "oklch": {
    "l": 0.52467,
    "c": 0.16329,
    "h": 33
  },
  "luminance": 0.12965
}

Semantic roles & 50–950 ramp

primary

#B53A22

secondary

#69BACA

accent

#CFEB3D

background

#FEF7F5

surface

#FCEDE9

border

#D5C8C5

text

#160905

muted

#847B79

Preview Lab

Preview with #B53A22

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

Preview Lab → · Contrast checker → · Palette generator →