#C23A1F#C23A1F

#C23A1F is a mid, vivid red. Relative luminance 0.146; OKLCH L 54.7% C 0.177 H 33.1°. Best body text is #FFFFFF at 5.36:1 contrast (WCAG AA passes).

Color values

HEX	#C23A1F
RGB	rgb(194, 58, 31)
HSL	hsl(10, 72%, 44%)
HSV	hsv(10, 84%, 76%)
CMYK	cmyk(0%, 70.1%, 84%, 23.9%)
CIE-LAB	lab(45.08, 52.81, 45.93)
CIE-LCH	lch(45.08, 69.99, 41.01°)
OKLab	oklab(54.67% 0.1484 0.0967)
OKLCH	oklch(54.67% 0.177 33.1)
XYZ	xyz(24.0114, 14.5981, 2.8495)
Luminance	0.1459 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#C23A1F #1FA7C2

analogous

#C21F55 #C23A1F #C28C1F

triadic

#C23A1F #1FC23A #3A1FC2

tetradic

#C23A1F #55C21F #1FA7C2 #8C1FC2

square

#C23A1F #55C21F #1FA7C2 #8C1FC2

split-complementary

#C23A1F #1FC28C #1F55C2

monochromatic

#581A0E #8D2A17 #C23A1F #E0593E #E98673

Accessibility & contrast

On white

5.36

#C23A1F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.92

#C23A1F on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #C23A1F

5.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##C23A1F	#FFFFFF	#000000	##FFFFFF
##C23A1F	1.00	5.36	3.92	5.36
#FFFFFF	5.36	1.00	21.00	1.00
#000000	3.92	21.00	1.00	21.00
##FFFFFF	5.36	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#63571A

Deuteranopia (green-blind)

#847617

Tritanopia (blue-blind)

#D60035

Achromatopsia (no color)

#6B6B6B

Design tokens & code

CSS

--color: #c23a1f;
/* rgb */ color: rgb(194, 58, 31);
/* oklch */ color: oklch(54.7% 0.177 33.1);

Tailwind

colors: {
  custom: {
    50: '#de785e',
    500: '#c23a1f',
    950: '#000000',
  },
}

SCSS

$custom: #c23a1f;
$custom-light: #de785e;
$custom-dark: #000000;

JSON

{
  "hex": "#c23a1f",
  "rgb": {
    "r": 194,
    "g": 58,
    "b": 31
  },
  "hsl": {
    "h": 9.939,
    "s": 72.444,
    "l": 44.118
  },
  "oklch": {
    "l": 0.54671,
    "c": 0.17714,
    "h": 33.1
  },
  "luminance": 0.14594
}

Semantic roles & 50–950 ramp

primary

#C23A1F

secondary

#6DBFCF

accent

#D1EF39

background

#FFF7F5

surface

#FEEEE9

border

#D6C9C5

text

#170A04

muted

#857C79

Preview Lab

Preview with #C23A1F

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

Preview Lab → · Contrast checker → · Palette generator →