#B53C25#B53C25

#B53C25 is a mid, vivid red. Relative luminance 0.132; OKLCH L 52.7% C 0.161 H 32.9°. Best body text is #FFFFFF at 5.77:1 contrast (WCAG AA passes).

Color values

HEX	#B53C25
RGB	rgb(181, 60, 37)
HSL	hsl(10, 66%, 43%)
HSV	hsv(10, 80%, 71%)
CMYK	cmyk(0%, 66.9%, 79.6%, 29%)
CIE-LAB	lab(43.05, 47.78, 40.16)
CIE-LCH	lch(43.05, 62.41, 40.05°)
OKLab	oklab(52.73% 0.1352 0.0873)
OKLCH	oklch(52.73% 0.161 32.9)
XYZ	xyz(21.0082, 13.1922, 3.1900)
Luminance	0.1319 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B53C25 #259EB5

analogous

#B52556 #B53C25 #B58425

triadic

#B53C25 #25B53C #3C25B5

tetradic

#B53C25 #56B525 #259EB5 #8425B5

square

#B53C25 #56B525 #259EB5 #8425B5

split-complementary

#B53C25 #25B584 #2556B5

monochromatic

#4F1A10 #822B1B #B53C25 #D8583F #E28472

Accessibility & contrast

On white

5.77

#B53C25 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.64

#B53C25 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B53C25

5.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B53C25	#FFFFFF	#000000	##FFFFFF
##B53C25	1.00	5.77	3.64	5.77
#FFFFFF	5.77	1.00	21.00	1.00
#000000	3.64	21.00	1.00	21.00
##FFFFFF	5.77	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5F5521

Deuteranopia (green-blind)

#7D7020

Tritanopia (blue-blind)

#C71738

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #b53c25;
/* rgb */ color: rgb(181, 60, 37);
/* oklch */ color: oklch(52.7% 0.161 32.9);

Tailwind

colors: {
  custom: {
    50: '#d47861',
    500: '#b53c25',
    950: '#000000',
  },
}

SCSS

$custom: #b53c25;
$custom-light: #d47861;
$custom-dark: #000000;

JSON

{
  "hex": "#b53c25",
  "rgb": {
    "r": 181,
    "g": 60,
    "b": 37
  },
  "hsl": {
    "h": 9.583,
    "s": 66.055,
    "l": 42.745
  },
  "oklch": {
    "l": 0.52728,
    "c": 0.1609,
    "h": 32.9
  },
  "luminance": 0.13189
}

Semantic roles & 50–950 ramp

primary

#B53C25

secondary

#6DBAC9

accent

#CEE93F

background

#FEF7F5

surface

#FCEEEA

border

#D5C9C6

text

#160905

muted

#847B79

Preview Lab

Preview with #B53C25

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

Preview Lab → · Contrast checker → · Palette generator →