#C43838#C43838

#C43838 is a mid, vivid red. Relative luminance 0.148; OKLCH L 55.1% C 0.177 H 25.1°. Best body text is #FFFFFF at 5.29:1 contrast (WCAG AA passes).

Color values

HEX	#C43838
RGB	rgb(196, 56, 56)
HSL	hsl(0, 56%, 49%)
HSV	hsv(0, 71%, 77%)
CMYK	cmyk(0%, 71.4%, 71.4%, 23.1%)
CIE-LAB	lab(45.43, 55.12, 32.91)
CIE-LCH	lch(45.43, 64.19, 30.84°)
OKLab	oklab(55.08% 0.1603 0.0752)
OKLCH	oklch(55.08% 0.177 25.1)
XYZ	xyz(24.8957, 14.8534, 5.2967)
Luminance	0.1485 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#C43838 #38C4C4

analogous

#C4387E #C43838 #C47E38

triadic

#C43838 #38C438 #3838C4

tetradic

#C43838 #7EC438 #38C4C4 #7E38C4

square

#C43838 #7EC438 #38C4C4 #7E38C4

split-complementary

#C43838 #38C47E #387EC4

monochromatic

#651D1D #942A2A #C43838 #D36666 #E19696

Accessibility & contrast

On white

5.29

#C43838 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.97

#C43838 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #C43838

5.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##C43838	#FFFFFF	#000000	##FFFFFF
##C43838	1.00	5.29	3.97	5.29
#FFFFFF	5.29	1.00	21.00	1.00
#000000	3.97	21.00	1.00	21.00
##FFFFFF	5.29	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#605837

Deuteranopia (green-blind)

#837733

Tritanopia (blue-blind)

#D7003A

Achromatopsia (no color)

#6C6C6C

Design tokens & code

CSS

--color: #c43838;
/* rgb */ color: rgb(196, 56, 56);
/* oklch */ color: oklch(55.1% 0.177 25.1);

Tailwind

colors: {
  custom: {
    50: '#de786f',
    500: '#c43838',
    950: '#000000',
  },
}

SCSS

$custom: #c43838;
$custom-light: #de786f;
$custom-dark: #000000;

JSON

{
  "hex": "#c43838",
  "rgb": {
    "r": 196,
    "g": 56,
    "b": 56
  },
  "hsl": {
    "h": 0,
    "s": 55.556,
    "l": 49.412
  },
  "oklch": {
    "l": 0.55085,
    "c": 0.1771,
    "h": 25.1
  },
  "luminance": 0.1485
}

Semantic roles & 50–950 ramp

primary

#C43838

secondary

#8CCCCC

accent

#DFDF49

background

#FEF7F6

surface

#FDEEEC

border

#D5C9C7

text

#170A07

muted

#857C7A

Preview Lab

Preview with #C43838

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

Preview Lab → · Contrast checker → · Palette generator →