#C23B1F#C23B1F

#C23B1F is a mid, vivid red. Relative luminance 0.147; OKLCH L 54.8% C 0.176 H 33.4°. Best body text is #FFFFFF at 5.33:1 contrast (WCAG AA passes).

Color values

HEX	#C23B1F
RGB	rgb(194, 59, 31)
HSL	hsl(10, 72%, 44%)
HSV	hsv(10, 84%, 76%)
CMYK	cmyk(0%, 69.6%, 84%, 23.9%)
CIE-LAB	lab(45.22, 52.42, 46.06)
CIE-LCH	lch(45.22, 69.78, 41.30°)
OKLab	oklab(54.78% 0.1472 0.097)
OKLCH	oklch(54.78% 0.176 33.4)
XYZ	xyz(24.0623, 14.6999, 2.8664)
Luminance	0.1470 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#C23B1F #1FA6C2

analogous

#C21F55 #C23B1F #C28D1F

triadic

#C23B1F #1FC23B #3B1FC2

tetradic

#C23B1F #55C21F #1FA6C2 #8D1FC2

square

#C23B1F #55C21F #1FA6C2 #8D1FC2

split-complementary

#C23B1F #1FC28D #1F55C2

monochromatic

#581B0E #8D2B17 #C23B1F #E05A3E #E98773

Accessibility & contrast

On white

5.33

#C23B1F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.94

#C23B1F on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #C23B1F

5.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##C23B1F	#FFFFFF	#000000	##FFFFFF
##C23B1F	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)

#63581A

Deuteranopia (green-blind)

#857617

Tritanopia (blue-blind)

#D60136

Achromatopsia (no color)

#6B6B6B

Design tokens & code

CSS

--color: #c23b1f;
/* rgb */ color: rgb(194, 59, 31);
/* oklch */ color: oklch(54.8% 0.176 33.4);

Tailwind

colors: {
  custom: {
    50: '#de795e',
    500: '#c23b1f',
    950: '#000000',
  },
}

SCSS

$custom: #c23b1f;
$custom-light: #de795e;
$custom-dark: #000000;

JSON

{
  "hex": "#c23b1f",
  "rgb": {
    "r": 194,
    "g": 59,
    "b": 31
  },
  "hsl": {
    "h": 10.307,
    "s": 72.444,
    "l": 44.118
  },
  "oklch": {
    "l": 0.54777,
    "c": 0.17629,
    "h": 33.4
  },
  "luminance": 0.14696
}

Semantic roles & 50–950 ramp

primary

#C23B1F

secondary

#6DBFCF

accent

#D0EF39

background

#FFF7F5

surface

#FEEEE9

border

#D6C9C5

text

#170A04

muted

#857C79

Preview Lab

Preview with #C23B1F

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

Preview Lab → · Contrast checker → · Palette generator →