#C33437#C33437

#C33437 is a mid, vivid red. Relative luminance 0.143; OKLCH L 54.5% C 0.180 H 24.5°. Best body text is #FFFFFF at 5.43:1 contrast (WCAG AA passes).

Color values

HEX	#C33437
RGB	rgb(195, 52, 55)
HSL	hsl(359, 58%, 48%)
HSV	hsv(359, 73%, 76%)
CMYK	cmyk(0%, 73.3%, 71.8%, 23.5%)
CIE-LAB	lab(44.71, 56.19, 32.61)
CIE-LCH	lch(44.71, 64.97, 30.13°)
OKLab	oklab(54.51% 0.1636 0.0744)
OKLCH	oklch(54.51% 0.18 24.5)
XYZ	xyz(24.4260, 14.3376, 5.0950)
Luminance	0.1433 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#C33437 #34C3C0

analogous

#C3347E #C33437 #C37834

triadic

#C33437 #37C334 #3437C3

tetradic

#C33437 #7EC334 #34C3C0 #7834C3

square

#C33437 #7EC334 #34C3C0 #7834C3

split-complementary

#C33437 #34C378 #347EC3

monochromatic

#621A1C #932729 #C33437 #D56062 #E19092

Accessibility & contrast

On white

5.43

#C33437 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.87

#C33437 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #C33437

5.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##C33437	#FFFFFF	#000000	##FFFFFF
##C33437	1.00	5.43	3.87	5.43
#FFFFFF	5.43	1.00	21.00	1.00
#000000	3.87	21.00	1.00	21.00
##FFFFFF	5.43	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5E5636

Deuteranopia (green-blind)

#817532

Tritanopia (blue-blind)

#D60037

Achromatopsia (no color)

#6A6A6A

Design tokens & code

CSS

--color: #c33437;
/* rgb */ color: rgb(195, 52, 55);
/* oklch */ color: oklch(54.5% 0.180 24.5);

Tailwind

colors: {
  custom: {
    50: '#de766e',
    500: '#c33437',
    950: '#000000',
  },
}

SCSS

$custom: #c33437;
$custom-light: #de766e;
$custom-dark: #000000;

JSON

{
  "hex": "#c33437",
  "rgb": {
    "r": 195,
    "g": 52,
    "b": 55
  },
  "hsl": {
    "h": 358.741,
    "s": 57.895,
    "l": 48.431
  },
  "oklch": {
    "l": 0.5451,
    "c": 0.17978,
    "h": 24.5
  },
  "luminance": 0.14334
}

Semantic roles & 50–950 ramp

primary

#C33437

secondary

#87CCCB

accent

#E1DE47

background

#FEF7F6

surface

#FDEEEB

border

#D5C9C6

text

#170907

muted

#857B7A

Preview Lab

Preview with #C33437

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

Preview Lab → · Contrast checker → · Palette generator →