#C63539#C63539

#C63539 is a mid, vivid red. Relative luminance 0.148; OKLCH L 55.2% C 0.182 H 24.1°. Best body text is #FFFFFF at 5.29:1 contrast (WCAG AA passes).

Color values

HEX	#C63539
RGB	rgb(198, 53, 57)
HSL	hsl(358, 58%, 49%)
HSV	hsv(358, 73%, 78%)
CMYK	cmyk(0%, 73.2%, 71.2%, 22.4%)
CIE-LAB	lab(45.43, 56.87, 32.41)
CIE-LCH	lch(45.43, 65.45, 29.68°)
OKLab	oklab(55.16% 0.1658 0.0742)
OKLCH	oklch(55.16% 0.182 24.1)
XYZ	xyz(25.3032, 14.8512, 5.4043)
Luminance	0.1485 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#C63539 #35C6C2

analogous

#C63582 #C63539 #C67A35

triadic

#C63539 #39C635 #3539C6

tetradic

#C63539 #82C635 #35C6C2 #7A35C6

square

#C63539 #82C635 #35C6C2 #7A35C6

split-complementary

#C63539 #35C67A #3582C6

monochromatic

#651B1D #96282B #C63539 #D56366 #E29395

Accessibility & contrast

On white

5.29

#C63539 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.97

#C63539 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #C63539

5.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##C63539	#FFFFFF	#000000	##FFFFFF
##C63539	1.00	5.29	3.97	5.29
#FFFFFF	5.29	1.00	21.00	1.00
#000000	3.97	21.00	1.00	21.00
##FFFFFF	5.29	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5F5838

Deuteranopia (green-blind)

#837734

Tritanopia (blue-blind)

#DA0038

Achromatopsia (no color)

#6B6B6B

Design tokens & code

CSS

--color: #c63539;
/* rgb */ color: rgb(198, 53, 57);
/* oklch */ color: oklch(55.2% 0.182 24.1);

Tailwind

colors: {
  custom: {
    50: '#e0776f',
    500: '#c63539',
    950: '#000000',
  },
}

SCSS

$custom: #c63539;
$custom-light: #e0776f;
$custom-dark: #000000;

JSON

{
  "hex": "#c63539",
  "rgb": {
    "r": 198,
    "g": 53,
    "b": 57
  },
  "hsl": {
    "h": 358.345,
    "s": 57.769,
    "l": 49.216
  },
  "oklch": {
    "l": 0.55155,
    "c": 0.18168,
    "h": 24.1
  },
  "luminance": 0.14847
}

Semantic roles & 50–950 ramp

primary

#C63539

secondary

#8ACDCB

accent

#E1DD47

background

#FEF7F6

surface

#FDEEEC

border

#D5C9C7

text

#170907

muted

#857B7A

Preview Lab

Preview with #C63539

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

Preview Lab → · Contrast checker → · Palette generator →