#C23739#C23739

#C23739 is a mid, vivid red. Relative luminance 0.145; OKLCH L 54.7% C 0.176 H 24.4°. Best body text is #FFFFFF at 5.39:1 contrast (WCAG AA passes).

Color values

HEX	#C23739
RGB	rgb(194, 55, 57)
HSL	hsl(359, 56%, 49%)
HSV	hsv(359, 72%, 76%)
CMYK	cmyk(0%, 71.6%, 70.6%, 23.9%)
CIE-LAB	lab(44.94, 54.90, 31.65)
CIE-LCH	lch(44.94, 63.37, 29.97°)
OKLab	oklab(54.66% 0.1601 0.0728)
OKLCH	oklch(54.66% 0.176 24.4)
XYZ	xyz(24.3555, 14.5008, 5.3866)
Luminance	0.1450 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#C23739 #37C2C0

analogous

#C2377F #C23739 #C27B37

triadic

#C23739 #39C237 #3739C2

tetradic

#C23739 #7FC237 #37C2C0 #7B37C2

square

#C23739 #7FC237 #37C2C0 #7B37C2

split-complementary

#C23739 #37C27B #377FC2

monochromatic

#631C1D #92292B #C23739 #D36365 #E09394

Accessibility & contrast

On white

5.39

#C23739 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.90

#C23739 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #C23739

5.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##C23739	#FFFFFF	#000000	##FFFFFF
##C23739	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)

#5F5738

Deuteranopia (green-blind)

#827534

Tritanopia (blue-blind)

#D50039

Achromatopsia (no color)

#6A6A6A

Design tokens & code

CSS

--color: #c23739;
/* rgb */ color: rgb(194, 55, 57);
/* oklch */ color: oklch(54.7% 0.176 24.4);

Tailwind

colors: {
  custom: {
    50: '#dd776f',
    500: '#c23739',
    950: '#000000',
  },
}

SCSS

$custom: #c23739;
$custom-light: #dd776f;
$custom-dark: #000000;

JSON

{
  "hex": "#c23739",
  "rgb": {
    "r": 194,
    "g": 55,
    "b": 57
  },
  "hsl": {
    "h": 359.137,
    "s": 55.823,
    "l": 48.824
  },
  "oklch": {
    "l": 0.54656,
    "c": 0.17585,
    "h": 24.4
  },
  "luminance": 0.14497
}

Semantic roles & 50–950 ramp

primary

#C23739

secondary

#89CBCB

accent

#DFDD49

background

#FEF7F6

surface

#FDEEEC

border

#D5C9C7

text

#170907

muted

#857B7A

Preview Lab

Preview with #C23739

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

Preview Lab → · Contrast checker → · Palette generator →