#C43B3A#C43B3A

#C43B3A is a mid, vivid red. Relative luminance 0.152; OKLCH L 55.4% C 0.174 H 25.2°. Best body text is #FFFFFF at 5.21:1 contrast (WCAG AA passes).

Color values

HEX	#C43B3A
RGB	rgb(196, 59, 58)
HSL	hsl(0, 54%, 50%)
HSV	hsv(0, 70%, 77%)
CMYK	cmyk(0%, 69.9%, 70.4%, 23.1%)
CIE-LAB	lab(45.87, 54.08, 32.25)
CIE-LCH	lch(45.87, 62.97, 30.81°)
OKLab	oklab(55.42% 0.1575 0.0742)
OKLCH	oklch(55.42% 0.174 25.2)
XYZ	xyz(25.0954, 15.1729, 5.6094)
Luminance	0.1517 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#C43B3A #3AC3C4

analogous

#C43A7E #C43B3A #C4803A

triadic

#C43B3A #3AC43B #3B3AC4

tetradic

#C43B3A #7EC43A #3AC3C4 #803AC4

square

#C43B3A #7EC43A #3AC3C4 #803AC4

split-complementary

#C43B3A #3AC480 #3A7EC4

monochromatic

#661F1E #952D2C #C43B3A #D36969 #E09898

Accessibility & contrast

On white

5.21

#C43B3A on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.03

#C43B3A on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #C43B3A

5.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##C43B3A	#FFFFFF	#000000	##FFFFFF
##C43B3A	1.00	5.21	4.03	5.21
#FFFFFF	5.21	1.00	21.00	1.00
#000000	4.03	21.00	1.00	21.00
##FFFFFF	5.21	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#625A39

Deuteranopia (green-blind)

#847736

Tritanopia (blue-blind)

#D70C3C

Achromatopsia (no color)

#6D6D6D

Design tokens & code

CSS

--color: #c43b3a;
/* rgb */ color: rgb(196, 59, 58);
/* oklch */ color: oklch(55.4% 0.174 25.2);

Tailwind

colors: {
  custom: {
    50: '#de7a70',
    500: '#c43b3a',
    950: '#000000',
  },
}

SCSS

$custom: #c43b3a;
$custom-light: #de7a70;
$custom-dark: #000000;

JSON

{
  "hex": "#c43b3a",
  "rgb": {
    "r": 196,
    "g": 59,
    "b": 58
  },
  "hsl": {
    "h": 0.435,
    "s": 54.331,
    "l": 49.804
  },
  "oklch": {
    "l": 0.5542,
    "c": 0.17406,
    "h": 25.2
  },
  "luminance": 0.15169
}

Semantic roles & 50–950 ramp

primary

#C43B3A

secondary

#8ECCCC

accent

#DDDE4A

background

#FEF7F6

surface

#FDEEEC

border

#D5C9C7

text

#170A07

muted

#857C7A

Preview Lab

Preview with #C43B3A

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

Preview Lab → · Contrast checker → · Palette generator →