#C4403A#C4403A

#C4403A is a mid, vivid red. Relative luminance 0.157; OKLCH L 56.0% C 0.169 H 26.7°. Best body text is #FFFFFF at 5.07:1 contrast (WCAG AA passes).

Color values

HEX	#C4403A
RGB	rgb(196, 64, 58)
HSL	hsl(3, 54%, 50%)
HSV	hsv(3, 70%, 77%)
CMYK	cmyk(0%, 67.3%, 70.4%, 23.1%)
CIE-LAB	lab(46.59, 52.11, 33.11)
CIE-LCH	lch(46.59, 61.74, 32.43°)
OKLab	oklab(55.96% 0.1512 0.076)
OKLCH	oklch(55.96% 0.169 26.7)
XYZ	xyz(25.3648, 15.7117, 5.6992)
Luminance	0.1571 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#C4403A #3ABEC4

analogous

#C43A79 #C4403A #C4853A

triadic

#C4403A #3AC440 #403AC4

tetradic

#C4403A #79C43A #3ABEC4 #853AC4

square

#C4403A #79C43A #3ABEC4 #853AC4

split-complementary

#C4403A #3AC485 #3A79C4

monochromatic

#66211E #95312C #C4403A #D36D69 #E09B98

Accessibility & contrast

On white

5.07

#C4403A on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.14

#C4403A on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #C4403A

5.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##C4403A	#FFFFFF	#000000	##FFFFFF
##C4403A	1.00	5.07	4.14	5.07
#FFFFFF	5.07	1.00	21.00	1.00
#000000	4.14	21.00	1.00	21.00
##FFFFFF	5.07	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#655C38

Deuteranopia (green-blind)

#867936

Tritanopia (blue-blind)

#D71B40

Achromatopsia (no color)

#6E6E6E

Design tokens & code

CSS

--color: #c4403a;
/* rgb */ color: rgb(196, 64, 58);
/* oklch */ color: oklch(56.0% 0.169 26.7);

Tailwind

colors: {
  custom: {
    50: '#de7c70',
    500: '#c4403a',
    950: '#000000',
  },
}

SCSS

$custom: #c4403a;
$custom-light: #de7c70;
$custom-dark: #000000;

JSON

{
  "hex": "#c4403a",
  "rgb": {
    "r": 196,
    "g": 64,
    "b": 58
  },
  "hsl": {
    "h": 2.609,
    "s": 54.331,
    "l": 49.804
  },
  "oklch": {
    "l": 0.55962,
    "c": 0.16928,
    "h": 26.7
  },
  "luminance": 0.15708
}

Semantic roles & 50–950 ramp

primary

#C4403A

secondary

#8EC9CC

accent

#D7DE4A

background

#FEF7F6

surface

#FDEEEC

border

#D5C9C7

text

#170A07

muted

#857C7A

Preview Lab

Preview with #C4403A

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

Preview Lab → · Contrast checker → · Palette generator →