#C43E3F#C43E3F

#C43E3F is a mid, vivid red. Relative luminance 0.155; OKLCH L 55.8% C 0.171 H 24.2°. Best body text is #FFFFFF at 5.11:1 contrast (WCAG AA passes).

Color values

HEX	#C43E3F
RGB	rgb(196, 62, 63)
HSL	hsl(360, 53%, 51%)
HSV	hsv(360, 68%, 77%)
CMYK	cmyk(0%, 68.4%, 67.9%, 23.1%)
CIE-LAB	lab(46.37, 53.17, 29.91)
CIE-LCH	lch(46.37, 61.01, 29.36°)
OKLab	oklab(55.82% 0.1556 0.0698)
OKLCH	oklch(55.82% 0.171 24.2)
XYZ	xyz(25.3875, 15.5436, 6.3651)
Luminance	0.1554 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#C43E3F #3EC4C3

analogous

#C43E82 #C43E3F #C4803E

triadic

#C43E3F #3FC43E #3E3FC4

tetradic

#C43E3F #82C43E #3EC4C3 #803EC4

square

#C43E3F #82C43E #3EC4C3 #803EC4

split-complementary

#C43E3F #3EC480 #3E82C4

monochromatic

#682020 #972E2F #C43E3F #D26D6E #E19C9C

Accessibility & contrast

On white

5.11

#C43E3F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.11

#C43E3F on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #C43E3F

5.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##C43E3F	#FFFFFF	#000000	##FFFFFF
##C43E3F	1.00	5.11	4.11	5.11
#FFFFFF	5.11	1.00	21.00	1.00
#000000	4.11	21.00	1.00	21.00
##FFFFFF	5.11	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#635C3E

Deuteranopia (green-blind)

#85783B

Tritanopia (blue-blind)

#D71840

Achromatopsia (no color)

#6E6E6E

Design tokens & code

CSS

--color: #c43e3f;
/* rgb */ color: rgb(196, 62, 63);
/* oklch */ color: oklch(55.8% 0.171 24.2);

Tailwind

colors: {
  custom: {
    50: '#dd7b74',
    500: '#c43e3f',
    950: '#000000',
  },
}

SCSS

$custom: #c43e3f;
$custom-light: #dd7b74;
$custom-dark: #000000;

JSON

{
  "hex": "#c43e3f",
  "rgb": {
    "r": 196,
    "g": 62,
    "b": 63
  },
  "hsl": {
    "h": 359.552,
    "s": 53.175,
    "l": 50.588
  },
  "oklch": {
    "l": 0.55817,
    "c": 0.17056,
    "h": 24.2
  },
  "luminance": 0.1554
}

Semantic roles & 50–950 ramp

primary

#C43E3F

secondary

#91CDCC

accent

#DDDB4B

background

#FEF7F7

surface

#FDEEED

border

#D5C9C8

text

#170A08

muted

#857C7B

Preview Lab

Preview with #C43E3F

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

Preview Lab → · Contrast checker → · Palette generator →