#C23B21#C23B21

#C23B21 is a mid, vivid red. Relative luminance 0.147; OKLCH L 54.8% C 0.176 H 32.9°. Best body text is #FFFFFF at 5.33:1 contrast (WCAG AA passes).

Color values

HEX	#C23B21
RGB	rgb(194, 59, 33)
HSL	hsl(10, 71%, 45%)
HSV	hsv(10, 83%, 76%)
CMYK	cmyk(0%, 69.6%, 83%, 23.9%)
CIE-LAB	lab(45.24, 52.48, 45.11)
CIE-LCH	lch(45.24, 69.20, 40.68°)
OKLab	oklab(54.79% 0.1477 0.0956)
OKLCH	oklch(54.79% 0.176 32.9)
XYZ	xyz(24.0895, 14.7108, 3.0096)
Luminance	0.1471 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#C23B21 #21A8C2

analogous

#C22158 #C23B21 #C28B21

triadic

#C23B21 #21C23B #3B21C2

tetradic

#C23B21 #58C221 #21A8C2 #8B21C2

square

#C23B21 #58C221 #21A8C2 #8B21C2

split-complementary

#C23B21 #21C28B #2158C2

monochromatic

#591B0F #8E2B18 #C23B21 #DF5B41 #E88876

Accessibility & contrast

On white

5.33

#C23B21 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.94

#C23B21 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #C23B21

5.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##C23B21	#FFFFFF	#000000	##FFFFFF
##C23B21	1.00	5.33	3.94	5.33
#FFFFFF	5.33	1.00	21.00	1.00
#000000	3.94	21.00	1.00	21.00
##FFFFFF	5.33	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#63581C

Deuteranopia (green-blind)

#84761A

Tritanopia (blue-blind)

#D60236

Achromatopsia (no color)

#6B6B6B

Design tokens & code

CSS

--color: #c23b21;
/* rgb */ color: rgb(194, 59, 33);
/* oklch */ color: oklch(54.8% 0.176 32.9);

Tailwind

colors: {
  custom: {
    50: '#de795f',
    500: '#c23b21',
    950: '#000000',
  },
}

SCSS

$custom: #c23b21;
$custom-light: #de795f;
$custom-dark: #000000;

JSON

{
  "hex": "#c23b21",
  "rgb": {
    "r": 194,
    "g": 59,
    "b": 33
  },
  "hsl": {
    "h": 9.689,
    "s": 70.925,
    "l": 44.51
  },
  "oklch": {
    "l": 0.54793,
    "c": 0.17598,
    "h": 32.9
  },
  "luminance": 0.14707
}

Semantic roles & 50–950 ramp

primary

#C23B21

secondary

#70C0CF

accent

#D1EE3A

background

#FFF7F5

surface

#FEEEE9

border

#D6C9C5

text

#170A05

muted

#857C79

Preview Lab

Preview with #C23B21

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

Preview Lab → · Contrast checker → · Palette generator →