#C03839#C03839

#C03839 is a mid, vivid red. Relative luminance 0.143; OKLCH L 54.4% C 0.173 H 24.6°. Best body text is #FFFFFF at 5.43:1 contrast (WCAG AA passes).

Color values

HEX	#C03839
RGB	rgb(192, 56, 57)
HSL	hsl(360, 55%, 49%)
HSV	hsv(360, 71%, 75%)
CMYK	cmyk(0%, 70.8%, 70.3%, 24.7%)
CIE-LAB	lab(44.71, 53.89, 31.28)
CIE-LCH	lch(44.71, 62.31, 30.14°)
OKLab	oklab(54.41% 0.1571 0.0721)
OKLCH	oklch(54.41% 0.173 24.6)
XYZ	xyz(23.8935, 14.3338, 5.3787)
Luminance	0.1433 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#C03839 #38C0BF

analogous

#C0387D #C03839 #C07B38

triadic

#C03839 #39C038 #3839C0

tetradic

#C03839 #7DC038 #38C0BF #7B38C0

square

#C03839 #7DC038 #38C0BF #7B38C0

split-complementary

#C03839 #38C07B #387DC0

monochromatic

#611C1D #912A2B #C03839 #D26464 #DF9393

Accessibility & contrast

On white

5.43

#C03839 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.87

#C03839 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #C03839

5.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##C03839	#FFFFFF	#000000	##FFFFFF
##C03839	1.00	5.43	3.87	5.43
#FFFFFF	5.43	1.00	21.00	1.00
#000000	3.87	21.00	1.00	21.00
##FFFFFF	5.43	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5F5738

Deuteranopia (green-blind)

#817435

Tritanopia (blue-blind)

#D3053A

Achromatopsia (no color)

#6A6A6A

Design tokens & code

CSS

--color: #c03839;
/* rgb */ color: rgb(192, 56, 57);
/* oklch */ color: oklch(54.4% 0.173 24.6);

Tailwind

colors: {
  custom: {
    50: '#db786f',
    500: '#c03839',
    950: '#000000',
  },
}

SCSS

$custom: #c03839;
$custom-light: #db786f;
$custom-dark: #000000;

JSON

{
  "hex": "#c03839",
  "rgb": {
    "r": 192,
    "g": 56,
    "b": 57
  },
  "hsl": {
    "h": 359.559,
    "s": 54.839,
    "l": 48.627
  },
  "oklch": {
    "l": 0.54413,
    "c": 0.17287,
    "h": 24.6
  },
  "luminance": 0.1433
}

Semantic roles & 50–950 ramp

primary

#C03839

secondary

#89CBCA

accent

#DEDD4A

background

#FEF7F6

surface

#FDEEEC

border

#D5C9C7

text

#160907

muted

#847B7A

Preview Lab

Preview with #C03839

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

Preview Lab → · Contrast checker → · Palette generator →