#C33637#C33637

#C33637 is a mid, vivid red. Relative luminance 0.145; OKLCH L 54.7% C 0.178 H 25.0°. Best body text is #FFFFFF at 5.38:1 contrast (WCAG AA passes).

Color values

HEX	#C33637
RGB	rgb(195, 54, 55)
HSL	hsl(360, 57%, 49%)
HSV	hsv(360, 72%, 76%)
CMYK	cmyk(0%, 72.3%, 71.8%, 23.5%)
CIE-LAB	lab(44.97, 55.48, 32.91)
CIE-LCH	lch(44.97, 64.51, 30.67°)
OKLab	oklab(54.7% 0.1614 0.0751)
OKLCH	oklch(54.7% 0.178 25)
XYZ	xyz(24.5172, 14.5200, 5.1254)
Luminance	0.1452 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#C33637 #36C3C2

analogous

#C3367E #C33637 #C37C36

triadic

#C33637 #37C336 #3637C3

tetradic

#C33637 #7EC336 #36C3C2 #7C36C3

square

#C33637 #7EC336 #36C3C2 #7C36C3

split-complementary

#C33637 #36C37C #367EC3

monochromatic

#631B1C #932929 #C33637 #D46363 #E19293

Accessibility & contrast

On white

5.38

#C33637 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.90

#C33637 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #C33637

5.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##C33637	#FFFFFF	#000000	##FFFFFF
##C33637	1.00	5.38	3.90	5.38
#FFFFFF	5.38	1.00	21.00	1.00
#000000	3.90	21.00	1.00	21.00
##FFFFFF	5.38	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5F5736

Deuteranopia (green-blind)

#827532

Tritanopia (blue-blind)

#D60038

Achromatopsia (no color)

#6A6A6A

Design tokens & code

CSS

--color: #c33637;
/* rgb */ color: rgb(195, 54, 55);
/* oklch */ color: oklch(54.7% 0.178 25.0);

Tailwind

colors: {
  custom: {
    50: '#de776e',
    500: '#c33637',
    950: '#000000',
  },
}

SCSS

$custom: #c33637;
$custom-light: #de776e;
$custom-dark: #000000;

JSON

{
  "hex": "#c33637",
  "rgb": {
    "r": 195,
    "g": 54,
    "b": 55
  },
  "hsl": {
    "h": 359.574,
    "s": 56.627,
    "l": 48.824
  },
  "oklch": {
    "l": 0.54701,
    "c": 0.178,
    "h": 25
  },
  "luminance": 0.14516
}

Semantic roles & 50–950 ramp

primary

#C33637

secondary

#89CCCB

accent

#E0DF48

background

#FEF7F6

surface

#FDEEEB

border

#D5C9C6

text

#170907

muted

#857B7A

Preview Lab

Preview with #C33637

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

Preview Lab → · Contrast checker → · Palette generator →