#B53B25#B53B25

#B53B25 is a mid, vivid red. Relative luminance 0.131; OKLCH L 52.6% C 0.162 H 32.5°. Best body text is #FFFFFF at 5.81:1 contrast (WCAG AA passes).

Color values

HEX	#B53B25
RGB	rgb(181, 59, 37)
HSL	hsl(9, 66%, 43%)
HSV	hsv(9, 80%, 71%)
CMYK	cmyk(0%, 67.4%, 79.6%, 29%)
CIE-LAB	lab(42.90, 48.20, 40.00)
CIE-LCH	lch(42.90, 62.64, 39.69°)
OKLab	oklab(52.61% 0.1365 0.0869)
OKLCH	oklch(52.61% 0.162 32.5)
XYZ	xyz(20.9563, 13.0884, 3.1727)
Luminance	0.1308 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B53B25 #259FB5

analogous

#B52557 #B53B25 #B58325

triadic

#B53B25 #25B53B #3B25B5

tetradic

#B53B25 #57B525 #259FB5 #8325B5

square

#B53B25 #57B525 #259FB5 #8325B5

split-complementary

#B53B25 #25B583 #2557B5

monochromatic

#4F1A10 #822A1B #B53B25 #D8573F #E28372

Accessibility & contrast

On white

5.81

#B53B25 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.62

#B53B25 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B53B25

5.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B53B25	#FFFFFF	#000000	##FFFFFF
##B53B25	1.00	5.81	3.62	5.81
#FFFFFF	5.81	1.00	21.00	1.00
#000000	3.62	21.00	1.00	21.00
##FFFFFF	5.81	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5E5421

Deuteranopia (green-blind)

#7C6F20

Tritanopia (blue-blind)

#C71437

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #b53b25;
/* rgb */ color: rgb(181, 59, 37);
/* oklch */ color: oklch(52.6% 0.162 32.5);

Tailwind

colors: {
  custom: {
    50: '#d47861',
    500: '#b53b25',
    950: '#000000',
  },
}

SCSS

$custom: #b53b25;
$custom-light: #d47861;
$custom-dark: #000000;

JSON

{
  "hex": "#b53b25",
  "rgb": {
    "r": 181,
    "g": 59,
    "b": 37
  },
  "hsl": {
    "h": 9.167,
    "s": 66.055,
    "l": 42.745
  },
  "oklch": {
    "l": 0.52611,
    "c": 0.16182,
    "h": 32.5
  },
  "luminance": 0.13085
}

Semantic roles & 50–950 ramp

primary

#B53B25

secondary

#6DBBC9

accent

#CFE93F

background

#FEF7F5

surface

#FCEEEA

border

#D5C9C6

text

#160905

muted

#847B79

Preview Lab

Preview with #B53B25

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

Preview Lab → · Contrast checker → · Palette generator →