#C23B31#C23B31

#C23B31 is a mid, vivid red. Relative luminance 0.148; OKLCH L 55.0% C 0.173 H 28.4°. Best body text is #FFFFFF at 5.30:1 contrast (WCAG AA passes).

Color values

HEX	#C23B31
RGB	rgb(194, 59, 49)
HSL	hsl(4, 60%, 48%)
HSV	hsv(4, 75%, 76%)
CMYK	cmyk(0%, 69.6%, 74.7%, 23.9%)
CIE-LAB	lab(45.39, 53.03, 36.78)
CIE-LCH	lch(45.39, 64.54, 34.75°)
OKLab	oklab(54.96% 0.1525 0.0823)
OKLCH	oklch(54.96% 0.173 28.4)
XYZ	xyz(24.3692, 14.8227, 4.4830)
Luminance	0.1482 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#C23B31 #31B8C2

analogous

#C2316F #C23B31 #C28431

triadic

#C23B31 #31C23B #3B31C2

tetradic

#C23B31 #6FC231 #31B8C2 #8431C2

square

#C23B31 #6FC231 #31B8C2 #8431C2

split-complementary

#C23B31 #31C284 #316FC2

monochromatic

#601D18 #912C25 #C23B31 #D6635B #E2928C

Accessibility & contrast

On white

5.30

#C23B31 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.96

#C23B31 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #C23B31

5.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##C23B31	#FFFFFF	#000000	##FFFFFF
##C23B31	1.00	5.30	3.96	5.30
#FFFFFF	5.30	1.00	21.00	1.00
#000000	3.96	21.00	1.00	21.00
##FFFFFF	5.30	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#62592F

Deuteranopia (green-blind)

#83762C

Tritanopia (blue-blind)

#D50A3A

Achromatopsia (no color)

#6B6B6B

Design tokens & code

CSS

--color: #c23b31;
/* rgb */ color: rgb(194, 59, 49);
/* oklch */ color: oklch(55.0% 0.173 28.4);

Tailwind

colors: {
  custom: {
    50: '#dd796a',
    500: '#c23b31',
    950: '#000000',
  },
}

SCSS

$custom: #c23b31;
$custom-light: #dd796a;
$custom-dark: #000000;

JSON

{
  "hex": "#c23b31",
  "rgb": {
    "r": 194,
    "g": 59,
    "b": 49
  },
  "hsl": {
    "h": 4.138,
    "s": 59.671,
    "l": 47.647
  },
  "oklch": {
    "l": 0.54958,
    "c": 0.1733,
    "h": 28.4
  },
  "luminance": 0.14819
}

Semantic roles & 50–950 ramp

primary

#C23B31

secondary

#83C7CC

accent

#D8E345

background

#FEF7F6

surface

#FDEEEB

border

#D5C9C6

text

#170A06

muted

#857C7A

Preview Lab

Preview with #C23B31

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

Preview Lab → · Contrast checker → · Palette generator →