#C23737#C23737

#C23737 is a mid, vivid red. Relative luminance 0.145; OKLCH L 54.6% C 0.176 H 25.2°. Best body text is #FFFFFF at 5.39:1 contrast (WCAG AA passes).

Color values

HEX	#C23737
RGB	rgb(194, 55, 55)
HSL	hsl(0, 56%, 49%)
HSV	hsv(0, 72%, 76%)
CMYK	cmyk(0%, 71.6%, 71.6%, 23.9%)
CIE-LAB	lab(44.92, 54.80, 32.80)
CIE-LCH	lch(44.92, 63.87, 30.90°)
OKLab	oklab(54.63% 0.1594 0.0749)
OKLCH	oklch(54.63% 0.176 25.2)
XYZ	xyz(24.3066, 14.4812, 5.1290)
Luminance	0.1448 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#C23737 #37C2C2

analogous

#C2377D #C23737 #C27D37

triadic

#C23737 #37C237 #3737C2

tetradic

#C23737 #7DC237 #37C2C2 #7D37C2

square

#C23737 #7DC237 #37C2C2 #7D37C2

split-complementary

#C23737 #37C27D #377DC2

monochromatic

#631C1C #922929 #C23737 #D36363 #E09393

Accessibility & contrast

On white

5.39

#C23737 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.90

#C23737 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #C23737

5.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##C23737	#FFFFFF	#000000	##FFFFFF
##C23737	1.00	5.39	3.90	5.39
#FFFFFF	5.39	1.00	21.00	1.00
#000000	3.90	21.00	1.00	21.00
##FFFFFF	5.39	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5F5736

Deuteranopia (green-blind)

#827532

Tritanopia (blue-blind)

#D50039

Achromatopsia (no color)

#6A6A6A

Design tokens & code

CSS

--color: #c23737;
/* rgb */ color: rgb(194, 55, 55);
/* oklch */ color: oklch(54.6% 0.176 25.2);

Tailwind

colors: {
  custom: {
    50: '#dd776e',
    500: '#c23737',
    950: '#000000',
  },
}

SCSS

$custom: #c23737;
$custom-light: #dd776e;
$custom-dark: #000000;

JSON

{
  "hex": "#c23737",
  "rgb": {
    "r": 194,
    "g": 55,
    "b": 55
  },
  "hsl": {
    "h": 0,
    "s": 55.823,
    "l": 48.824
  },
  "oklch": {
    "l": 0.54627,
    "c": 0.17608,
    "h": 25.2
  },
  "luminance": 0.14478
}

Semantic roles & 50–950 ramp

primary

#C23737

secondary

#89CBCB

accent

#DFDF49

background

#FEF7F6

surface

#FDEEEC

border

#D5C9C7

text

#170907

muted

#857B7A

Preview Lab

Preview with #C23737

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

Preview Lab → · Contrast checker → · Palette generator →