#C03A3B#C03A3B

#C03A3B is a mid, vivid red. Relative luminance 0.145; OKLCH L 54.7% C 0.171 H 24.4°. Best body text is #FFFFFF at 5.37:1 contrast (WCAG AA passes).

Color values

HEX	#C03A3B
RGB	rgb(192, 58, 59)
HSL	hsl(360, 54%, 49%)
HSV	hsv(360, 70%, 75%)
CMYK	cmyk(0%, 69.8%, 69.3%, 24.7%)
CIE-LAB	lab(45.01, 53.23, 30.47)
CIE-LCH	lch(45.01, 61.33, 29.79°)
OKLab	oklab(54.65% 0.1555 0.0706)
OKLCH	oklch(54.65% 0.171 24.4)
XYZ	xyz(24.0433, 14.5519, 5.6796)
Luminance	0.1455 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#C03A3B #3AC0BF

analogous

#C03A7E #C03A3B #C07C3A

triadic

#C03A3B #3BC03A #3A3BC0

tetradic

#C03A3B #7EC03A #3AC0BF #7C3AC0

square

#C03A3B #7EC03A #3AC0BF #7C3AC0

split-complementary

#C03A3B #3AC07C #3A7EC0

monochromatic

#621E1E #912C2D #C03A3B #D16667 #DF9596

Accessibility & contrast

On white

5.37

#C03A3B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.91

#C03A3B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #C03A3B

5.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##C03A3B	#FFFFFF	#000000	##FFFFFF
##C03A3B	1.00	5.37	3.91	5.37
#FFFFFF	5.37	1.00	21.00	1.00
#000000	3.91	21.00	1.00	21.00
##FFFFFF	5.37	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#60583A

Deuteranopia (green-blind)

#817537

Tritanopia (blue-blind)

#D30E3C

Achromatopsia (no color)

#6A6A6A

Design tokens & code

CSS

--color: #c03a3b;
/* rgb */ color: rgb(192, 58, 59);
/* oklch */ color: oklch(54.7% 0.171 24.4);

Tailwind

colors: {
  custom: {
    50: '#db7971',
    500: '#c03a3b',
    950: '#000000',
  },
}

SCSS

$custom: #c03a3b;
$custom-light: #db7971;
$custom-dark: #000000;

JSON

{
  "hex": "#c03a3b",
  "rgb": {
    "r": 192,
    "g": 58,
    "b": 59
  },
  "hsl": {
    "h": 359.552,
    "s": 53.6,
    "l": 49.02
  },
  "oklch": {
    "l": 0.54651,
    "c": 0.17075,
    "h": 24.4
  },
  "luminance": 0.14548
}

Semantic roles & 50–950 ramp

primary

#C03A3B

secondary

#8BCACA

accent

#DDDC4B

background

#FEF7F6

surface

#FDEEEC

border

#D5C9C7

text

#160A07

muted

#847C7A

Preview Lab

Preview with #C03A3B

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

Preview Lab → · Contrast checker → · Palette generator →