#C33333#C33333

#C33333 is a mid, vivid red. Relative luminance 0.142; OKLCH L 54.4% C 0.181 H 25.6°. Best body text is #FFFFFF at 5.47:1 contrast (WCAG AA passes).

Color values

HEX	#C33333
RGB	rgb(195, 51, 51)
HSL	hsl(0, 59%, 48%)
HSV	hsv(0, 74%, 76%)
CMYK	cmyk(0%, 73.8%, 73.8%, 23.5%)
CIE-LAB	lab(44.54, 56.36, 34.74)
CIE-LCH	lch(44.54, 66.21, 31.65°)
OKLab	oklab(54.36% 0.1633 0.0783)
OKLCH	oklch(54.36% 0.181 25.6)
XYZ	xyz(24.2898, 14.2125, 4.5956)
Luminance	0.1421 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#C33333 #33C3C3

analogous

#C3337B #C33333 #C37B33

triadic

#C33333 #33C333 #3333C3

tetradic

#C33333 #7BC333 #33C3C3 #7B33C3

square

#C33333 #7BC333 #33C3C3 #7B33C3

split-complementary

#C33333 #33C37B #337BC3

monochromatic

#621A1A #922626 #C33333 #D55E5E #E28F8F

Accessibility & contrast

On white

5.47

#C33333 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.84

#C33333 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #C33333

5.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##C33333	#FFFFFF	#000000	##FFFFFF
##C33333	1.00	5.47	3.84	5.47
#FFFFFF	5.47	1.00	21.00	1.00
#000000	3.84	21.00	1.00	21.00
##FFFFFF	5.47	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5E5531

Deuteranopia (green-blind)

#82752E

Tritanopia (blue-blind)

#D70035

Achromatopsia (no color)

#696969

Design tokens & code

CSS

--color: #c33333;
/* rgb */ color: rgb(195, 51, 51);
/* oklch */ color: oklch(54.4% 0.181 25.6);

Tailwind

colors: {
  custom: {
    50: '#de766b',
    500: '#c33333',
    950: '#000000',
  },
}

SCSS

$custom: #c33333;
$custom-light: #de766b;
$custom-dark: #000000;

JSON

{
  "hex": "#c33333",
  "rgb": {
    "r": 195,
    "g": 51,
    "b": 51
  },
  "hsl": {
    "h": 0,
    "s": 58.537,
    "l": 48.235
  },
  "oklch": {
    "l": 0.54362,
    "c": 0.1811,
    "h": 25.6
  },
  "luminance": 0.14209
}

Semantic roles & 50–950 ramp

primary

#C33333

secondary

#86CCCC

accent

#E2E246

background

#FEF7F6

surface

#FDEEEB

border

#D5C9C6

text

#170906

muted

#857B7A

Preview Lab

Preview with #C33333

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

Preview Lab → · Contrast checker → · Palette generator →