#C4312B#C4312B

#C4312B is a mid, vivid red. Relative luminance 0.141; OKLCH L 54.3% C 0.185 H 27.7°. Best body text is #FFFFFF at 5.50:1 contrast (WCAG AA passes).

Color values

HEX	#C4312B
RGB	rgb(196, 49, 43)
HSL	hsl(2, 64%, 47%)
HSV	hsv(2, 78%, 77%)
CMYK	cmyk(0%, 75%, 78.1%, 23.1%)
CIE-LAB	lab(44.39, 57.04, 39.17)
CIE-LCH	lch(44.39, 69.20, 34.48°)
OKLab	oklab(54.26% 0.1637 0.0858)
OKLCH	oklch(54.26% 0.185 27.7)
XYZ	xyz(24.3022, 14.1106, 3.7290)
Luminance	0.1411 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#C4312B #2BBEC4

analogous

#C42B72 #C4312B #C47E2B

triadic

#C4312B #2BC431 #312BC4

tetradic

#C4312B #72C42B #2BBEC4 #7E2BC4

square

#C4312B #72C42B #2BBEC4 #7E2BC4

split-complementary

#C4312B #2BC47E #2B72C4

monochromatic

#601815 #922420 #C4312B #D95853 #E48985

Accessibility & contrast

On white

5.50

#C4312B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.82

#C4312B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #C4312B

5.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##C4312B	#FFFFFF	#000000	##FFFFFF
##C4312B	1.00	5.50	3.82	5.50
#FFFFFF	5.50	1.00	21.00	1.00
#000000	3.82	21.00	1.00	21.00
##FFFFFF	5.50	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5E5529

Deuteranopia (green-blind)

#827525

Tritanopia (blue-blind)

#D80031

Achromatopsia (no color)

#696969

Design tokens & code

CSS

--color: #c4312b;
/* rgb */ color: rgb(196, 49, 43);
/* oklch */ color: oklch(54.3% 0.185 27.7);

Tailwind

colors: {
  custom: {
    50: '#df7565',
    500: '#c4312b',
    950: '#000000',
  },
}

SCSS

$custom: #c4312b;
$custom-light: #df7565;
$custom-dark: #000000;

JSON

{
  "hex": "#c4312b",
  "rgb": {
    "r": 196,
    "g": 49,
    "b": 43
  },
  "hsl": {
    "h": 2.353,
    "s": 64.017,
    "l": 46.863
  },
  "oklch": {
    "l": 0.54259,
    "c": 0.18477,
    "h": 27.7
  },
  "luminance": 0.14107
}

Semantic roles & 50–950 ramp

primary

#C4312B

secondary

#7DCACE

accent

#E1E741

background

#FFF7F6

surface

#FEEDEB

border

#D6C8C6

text

#170906

muted

#857B7A

Preview Lab

Preview with #C4312B

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

Preview Lab → · Contrast checker → · Palette generator →