#C53B3B#C53B3B

#C53B3B is a mid, vivid red. Relative luminance 0.153; OKLCH L 55.6% C 0.175 H 24.9°. Best body text is #FFFFFF at 5.17:1 contrast (WCAG AA passes).

Color values

HEX	#C53B3B
RGB	rgb(197, 59, 59)
HSL	hsl(0, 54%, 50%)
HSV	hsv(0, 70%, 77%)
CMYK	cmyk(0%, 70.1%, 70.1%, 22.7%)
CIE-LAB	lab(46.07, 54.46, 31.95)
CIE-LCH	lch(46.07, 63.13, 30.40°)
OKLab	oklab(55.61% 0.1587 0.0736)
OKLCH	oklch(55.61% 0.175 24.9)
XYZ	xyz(25.3821, 15.3178, 5.7569)
Luminance	0.1531 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#C53B3B #3BC5C5

analogous

#C53B80 #C53B3B #C5803B

triadic

#C53B3B #3BC53B #3B3BC5

tetradic

#C53B3B #80C53B #3BC5C5 #803BC5

square

#C53B3B #80C53B #3BC5C5 #803BC5

split-complementary

#C53B3B #3BC580 #3B80C5

monochromatic

#671F1F #962C2C #C53B3B #D36A6A #E19999

Accessibility & contrast

On white

5.17

#C53B3B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.06

#C53B3B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #C53B3B

5.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##C53B3B	#FFFFFF	#000000	##FFFFFF
##C53B3B	1.00	5.17	4.06	5.17
#FFFFFF	5.17	1.00	21.00	1.00
#000000	4.06	21.00	1.00	21.00
##FFFFFF	5.17	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#625A3A

Deuteranopia (green-blind)

#857837

Tritanopia (blue-blind)

#D80B3D

Achromatopsia (no color)

#6D6D6D

Design tokens & code

CSS

--color: #c53b3b;
/* rgb */ color: rgb(197, 59, 59);
/* oklch */ color: oklch(55.6% 0.175 24.9);

Tailwind

colors: {
  custom: {
    50: '#df7a71',
    500: '#c53b3b',
    950: '#000000',
  },
}

SCSS

$custom: #c53b3b;
$custom-light: #df7a71;
$custom-dark: #000000;

JSON

{
  "hex": "#c53b3b",
  "rgb": {
    "r": 197,
    "g": 59,
    "b": 59
  },
  "hsl": {
    "h": 0,
    "s": 54.331,
    "l": 50.196
  },
  "oklch": {
    "l": 0.55605,
    "c": 0.17497,
    "h": 24.9
  },
  "luminance": 0.15314
}

Semantic roles & 50–950 ramp

primary

#C53B3B

secondary

#8FCDCD

accent

#DEDE4A

background

#FEF7F6

surface

#FDEEEC

border

#D5C9C7

text

#170A07

muted

#857C7A

Preview Lab

Preview with #C53B3B

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

Preview Lab → · Contrast checker → · Palette generator →