#C53738#C53738

#C53738 is a mid, vivid red. Relative luminance 0.149; OKLCH L 55.2% C 0.179 H 24.9°. Best body text is #FFFFFF at 5.28:1 contrast (WCAG AA passes).

Color values

HEX	#C53738
RGB	rgb(197, 55, 56)
HSL	hsl(360, 56%, 49%)
HSV	hsv(360, 72%, 77%)
CMYK	cmyk(0%, 72.1%, 71.6%, 22.7%)
CIE-LAB	lab(45.49, 55.80, 33.02)
CIE-LCH	lch(45.49, 64.83, 30.61°)
OKLab	oklab(55.16% 0.1624 0.0754)
OKLCH	oklch(55.16% 0.179 24.9)
XYZ	xyz(25.1088, 14.8920, 5.2930)
Luminance	0.1489 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#C53738 #37C5C4

analogous

#C5377F #C53738 #C57D37

triadic

#C53738 #38C537 #3738C5

tetradic

#C53738 #7FC537 #37C5C4 #7D37C5

square

#C53738 #7FC537 #37C5C4 #7D37C5

split-complementary

#C53738 #37C57D #377FC5

monochromatic

#651C1D #952A2A #C53738 #D46566 #E19596

Accessibility & contrast

On white

5.28

#C53738 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.98

#C53738 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #C53738

5.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##C53738	#FFFFFF	#000000	##FFFFFF
##C53738	1.00	5.28	3.98	5.28
#FFFFFF	5.28	1.00	21.00	1.00
#000000	3.98	21.00	1.00	21.00
##FFFFFF	5.28	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#605837

Deuteranopia (green-blind)

#847733

Tritanopia (blue-blind)

#D90039

Achromatopsia (no color)

#6C6C6C

Design tokens & code

CSS

--color: #c53738;
/* rgb */ color: rgb(197, 55, 56);
/* oklch */ color: oklch(55.2% 0.179 24.9);

Tailwind

colors: {
  custom: {
    50: '#df786f',
    500: '#c53738',
    950: '#000000',
  },
}

SCSS

$custom: #c53738;
$custom-light: #df786f;
$custom-dark: #000000;

JSON

{
  "hex": "#c53738",
  "rgb": {
    "r": 197,
    "g": 55,
    "b": 56
  },
  "hsl": {
    "h": 359.577,
    "s": 56.349,
    "l": 49.412
  },
  "oklch": {
    "l": 0.55159,
    "c": 0.17902,
    "h": 24.9
  },
  "luminance": 0.14888
}

Semantic roles & 50–950 ramp

primary

#C53738

secondary

#8BCDCC

accent

#E0DF48

background

#FEF7F6

surface

#FDEEEC

border

#D5C9C7

text

#170A07

muted

#857C7A

Preview Lab

Preview with #C53738

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

Preview Lab → · Contrast checker → · Palette generator →