#B53A24#B53A24

#B53A24 is a mid, vivid red. Relative luminance 0.130; OKLCH L 52.5% C 0.163 H 32.5°. Best body text is #FFFFFF at 5.84:1 contrast (WCAG AA passes).

Color values

HEX	#B53A24
RGB	rgb(181, 58, 36)
HSL	hsl(9, 67%, 43%)
HSV	hsv(9, 80%, 71%)
CMYK	cmyk(0%, 68%, 80.1%, 29%)
CIE-LAB	lab(42.73, 48.58, 40.36)
CIE-LCH	lch(42.73, 63.16, 39.72°)
OKLab	oklab(52.49% 0.1375 0.0874)
OKLCH	oklch(52.49% 0.163 32.5)
XYZ	xyz(20.8899, 12.9804, 3.0742)
Luminance	0.1298 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B53A24 #249FB5

analogous

#B52457 #B53A24 #B58224

triadic

#B53A24 #24B53A #3A24B5

tetradic

#B53A24 #57B524 #249FB5 #8224B5

square

#B53A24 #57B524 #249FB5 #8224B5

split-complementary

#B53A24 #24B582 #2457B5

monochromatic

#4F1910 #822A1A #B53A24 #D9553E #E38271

Accessibility & contrast

On white

5.84

#B53A24 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.60

#B53A24 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B53A24

5.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B53A24	#FFFFFF	#000000	##FFFFFF
##B53A24	1.00	5.84	3.60	5.84
#FFFFFF	5.84	1.00	21.00	1.00
#000000	3.60	21.00	1.00	21.00
##FFFFFF	5.84	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5E5420

Deuteranopia (green-blind)

#7C6F1F

Tritanopia (blue-blind)

#C71136

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #b53a24;
/* rgb */ color: rgb(181, 58, 36);
/* oklch */ color: oklch(52.5% 0.163 32.5);

Tailwind

colors: {
  custom: {
    50: '#d47761',
    500: '#b53a24',
    950: '#000000',
  },
}

SCSS

$custom: #b53a24;
$custom-light: #d47761;
$custom-dark: #000000;

JSON

{
  "hex": "#b53a24",
  "rgb": {
    "r": 181,
    "g": 58,
    "b": 36
  },
  "hsl": {
    "h": 9.103,
    "s": 66.82,
    "l": 42.549
  },
  "oklch": {
    "l": 0.52486,
    "c": 0.16291,
    "h": 32.5
  },
  "luminance": 0.12977
}

Semantic roles & 50–950 ramp

primary

#B53A24

secondary

#6BBBC9

accent

#D0EA3E

background

#FEF7F5

surface

#FCEDEA

border

#D5C8C6

text

#160905

muted

#847B79

Preview Lab

Preview with #B53A24

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

Preview Lab → · Contrast checker → · Palette generator →