#C03939#C03939

#C03939 is a mid, vivid red. Relative luminance 0.144; OKLCH L 54.5% C 0.172 H 24.9°. Best body text is #FFFFFF at 5.40:1 contrast (WCAG AA passes).

Color values

HEX	#C03939
RGB	rgb(192, 57, 57)
HSL	hsl(0, 54%, 49%)
HSV	hsv(0, 70%, 75%)
CMYK	cmyk(0%, 70.3%, 70.3%, 24.7%)
CIE-LAB	lab(44.85, 53.51, 31.45)
CIE-LCH	lch(44.85, 62.07, 30.44°)
OKLab	oklab(54.52% 0.1559 0.0724)
OKLCH	oklch(54.52% 0.172 24.9)
XYZ	xyz(23.9425, 14.4317, 5.3950)
Luminance	0.1443 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#C03939 #39C0C0

analogous

#C0397D #C03939 #C07D39

triadic

#C03939 #39C039 #3939C0

tetradic

#C03939 #7DC039 #39C0C0 #7D39C0

square

#C03939 #7DC039 #39C0C0 #7D39C0

split-complementary

#C03939 #39C07D #397DC0

monochromatic

#621D1D #912B2B #C03939 #D16565 #DF9494

Accessibility & contrast

On white

5.40

#C03939 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.89

#C03939 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #C03939

5.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##C03939	#FFFFFF	#000000	##FFFFFF
##C03939	1.00	5.40	3.89	5.40
#FFFFFF	5.40	1.00	21.00	1.00
#000000	3.89	21.00	1.00	21.00
##FFFFFF	5.40	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5F5838

Deuteranopia (green-blind)

#817535

Tritanopia (blue-blind)

#D3093B

Achromatopsia (no color)

#6A6A6A

Design tokens & code

CSS

--color: #c03939;
/* rgb */ color: rgb(192, 57, 57);
/* oklch */ color: oklch(54.5% 0.172 24.9);

Tailwind

colors: {
  custom: {
    50: '#db786f',
    500: '#c03939',
    950: '#000000',
  },
}

SCSS

$custom: #c03939;
$custom-light: #db786f;
$custom-dark: #000000;

JSON

{
  "hex": "#c03939",
  "rgb": {
    "r": 192,
    "g": 57,
    "b": 57
  },
  "hsl": {
    "h": 0,
    "s": 54.217,
    "l": 48.824
  },
  "oklch": {
    "l": 0.54516,
    "c": 0.17193,
    "h": 24.9
  },
  "luminance": 0.14428
}

Semantic roles & 50–950 ramp

primary

#C03939

secondary

#8ACBCB

accent

#DEDE4A

background

#FEF7F6

surface

#FDEEEC

border

#D5C9C7

text

#160A07

muted

#847C7A

Preview Lab

Preview with #C03939

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

Preview Lab → · Contrast checker → · Palette generator →