#C63333#C63333

#C63333 is a mid, vivid red. Relative luminance 0.146; OKLCH L 54.9% C 0.184 H 25.7°. Best body text is #FFFFFF at 5.35:1 contrast (WCAG AA passes).

Color values

HEX	#C63333
RGB	rgb(198, 51, 51)
HSL	hsl(0, 59%, 49%)
HSV	hsv(0, 74%, 78%)
CMYK	cmyk(0%, 74.2%, 74.2%, 22.4%)
CIE-LAB	lab(45.10, 57.29, 35.53)
CIE-LCH	lch(45.10, 67.42, 31.81°)
OKLab	oklab(54.89% 0.1659 0.0798)
OKLCH	oklch(54.89% 0.184 25.7)
XYZ	xyz(25.0730, 14.6163, 4.6323)
Luminance	0.1461 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#C63333 #33C6C6

analogous

#C6337D #C63333 #C67D33

triadic

#C63333 #33C633 #3333C6

tetradic

#C63333 #7DC633 #33C6C6 #7D33C6

square

#C63333 #7DC633 #33C6C6 #7D33C6

split-complementary

#C63333 #33C67D #337DC6

monochromatic

#651A1A #952626 #C63333 #D66060 #E39191

Accessibility & contrast

On white

5.35

#C63333 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.92

#C63333 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #C63333

5.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##C63333	#FFFFFF	#000000	##FFFFFF
##C63333	1.00	5.35	3.92	5.35
#FFFFFF	5.35	1.00	21.00	1.00
#000000	3.92	21.00	1.00	21.00
##FFFFFF	5.35	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5F5631

Deuteranopia (green-blind)

#83762E

Tritanopia (blue-blind)

#DA0035

Achromatopsia (no color)

#6B6B6B

Design tokens & code

CSS

--color: #c63333;
/* rgb */ color: rgb(198, 51, 51);
/* oklch */ color: oklch(54.9% 0.184 25.7);

Tailwind

colors: {
  custom: {
    50: '#e0766b',
    500: '#c63333',
    950: '#000000',
  },
}

SCSS

$custom: #c63333;
$custom-light: #e0766b;
$custom-dark: #000000;

JSON

{
  "hex": "#c63333",
  "rgb": {
    "r": 198,
    "g": 51,
    "b": 51
  },
  "hsl": {
    "h": 0,
    "s": 59.036,
    "l": 48.824
  },
  "oklch": {
    "l": 0.54887,
    "c": 0.18408,
    "h": 25.7
  },
  "luminance": 0.14612
}

Semantic roles & 50–950 ramp

primary

#C63333

secondary

#87CDCD

accent

#E2E246

background

#FFF7F6

surface

#FEEEEB

border

#D6C9C6

text

#170906

muted

#857B7A

Preview Lab

Preview with #C63333

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

Preview Lab → · Contrast checker → · Palette generator →