#C43633#C43633

#C43633 is a mid, vivid red. Relative luminance 0.146; OKLCH L 54.8% C 0.180 H 26.4°. Best body text is #FFFFFF at 5.35:1 contrast (WCAG AA passes).

Color values

HEX	#C43633
RGB	rgb(196, 54, 51)
HSL	hsl(1, 59%, 48%)
HSV	hsv(1, 74%, 77%)
CMYK	cmyk(0%, 72.4%, 74%, 23.1%)
CIE-LAB	lab(45.10, 55.62, 35.43)
CIE-LCH	lch(45.10, 65.95, 32.50°)
OKLab	oklab(54.82% 0.1609 0.0797)
OKLCH	oklch(54.82% 0.18 26.4)
XYZ	xyz(24.6845, 14.6169, 4.6529)
Luminance	0.1461 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#C43633 #33C1C4

analogous

#C43379 #C43633 #C47E33

triadic

#C43633 #33C436 #3633C4

tetradic

#C43633 #79C433 #33C1C4 #7E33C4

square

#C43633 #79C433 #33C1C4 #7E33C4

split-complementary

#C43633 #33C47E #3379C4

monochromatic

#631B1A #932926 #C43633 #D5615F #E2918F

Accessibility & contrast

On white

5.35

#C43633 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.92

#C43633 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #C43633

5.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##C43633	#FFFFFF	#000000	##FFFFFF
##C43633	1.00	5.35	3.92	5.35
#FFFFFF	5.35	1.00	21.00	1.00
#000000	3.92	21.00	1.00	21.00
##FFFFFF	5.35	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#605731

Deuteranopia (green-blind)

#83762E

Tritanopia (blue-blind)

#D80037

Achromatopsia (no color)

#6B6B6B

Design tokens & code

CSS

--color: #c43633;
/* rgb */ color: rgb(196, 54, 51);
/* oklch */ color: oklch(54.8% 0.180 26.4);

Tailwind

colors: {
  custom: {
    50: '#df776b',
    500: '#c43633',
    950: '#000000',
  },
}

SCSS

$custom: #c43633;
$custom-light: #df776b;
$custom-dark: #000000;

JSON

{
  "hex": "#c43633",
  "rgb": {
    "r": 196,
    "g": 54,
    "b": 51
  },
  "hsl": {
    "h": 1.241,
    "s": 58.704,
    "l": 48.431
  },
  "oklch": {
    "l": 0.5482,
    "c": 0.17952,
    "h": 26.4
  },
  "luminance": 0.14613
}

Semantic roles & 50–950 ramp

primary

#C43633

secondary

#86CBCD

accent

#DFE246

background

#FEF7F6

surface

#FDEEEB

border

#D5C9C6

text

#170906

muted

#857B7A

Preview Lab

Preview with #C43633

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

Preview Lab → · Contrast checker → · Palette generator →