#C33737#C33737

#C33737 is a mid, vivid red. Relative luminance 0.146; OKLCH L 54.8% C 0.177 H 25.2°. Best body text is #FFFFFF at 5.35:1 contrast (WCAG AA passes).

Color values

HEX	#C33737
RGB	rgb(195, 55, 55)
HSL	hsl(0, 56%, 49%)
HSV	hsv(0, 72%, 76%)
CMYK	cmyk(0%, 71.8%, 71.8%, 23.5%)
CIE-LAB	lab(45.10, 55.12, 33.06)
CIE-LCH	lch(45.10, 64.27, 30.95°)
OKLab	oklab(54.8% 0.1602 0.0754)
OKLCH	oklch(54.8% 0.177 25.2)
XYZ	xyz(24.5642, 14.6140, 5.1410)
Luminance	0.1461 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#C33737 #37C3C3

analogous

#C3377D #C33737 #C37D37

triadic

#C33737 #37C337 #3737C3

tetradic

#C33737 #7DC337 #37C3C3 #7D37C3

square

#C33737 #7DC337 #37C3C3 #7D37C3

split-complementary

#C33737 #37C37D #377DC3

monochromatic

#641C1C #932A2A #C33737 #D36464 #E19494

Accessibility & contrast

On white

5.35

#C33737 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.92

#C33737 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #C33737

5.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##C33737	#FFFFFF	#000000	##FFFFFF
##C33737	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)

#5F5735

Deuteranopia (green-blind)

#827632

Tritanopia (blue-blind)

#D60039

Achromatopsia (no color)

#6B6B6B

Design tokens & code

CSS

--color: #c33737;
/* rgb */ color: rgb(195, 55, 55);
/* oklch */ color: oklch(54.8% 0.177 25.2);

Tailwind

colors: {
  custom: {
    50: '#dd786e',
    500: '#c33737',
    950: '#000000',
  },
}

SCSS

$custom: #c33737;
$custom-light: #dd786e;
$custom-dark: #000000;

JSON

{
  "hex": "#c33737",
  "rgb": {
    "r": 195,
    "g": 55,
    "b": 55
  },
  "hsl": {
    "h": 0,
    "s": 56,
    "l": 49.02
  },
  "oklch": {
    "l": 0.54799,
    "c": 0.17711,
    "h": 25.2
  },
  "luminance": 0.1461
}

Semantic roles & 50–950 ramp

primary

#C33737

secondary

#8ACCCC

accent

#DFDF49

background

#FEF7F6

surface

#FDEEEC

border

#D5C9C7

text

#170907

muted

#857B7A

Preview Lab

Preview with #C33737

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

Preview Lab → · Contrast checker → · Palette generator →