#C53728#C53728

#C53728 is a mid, vivid red. Relative luminance 0.148; OKLCH L 55.0% C 0.181 H 29.9°. Best body text is #FFFFFF at 5.31:1 contrast (WCAG AA passes).

Color values

HEX	#C53728
RGB	rgb(197, 55, 40)
HSL	hsl(6, 66%, 46%)
HSV	hsv(6, 80%, 77%)
CMYK	cmyk(0%, 72.1%, 79.7%, 22.7%)
CIE-LAB	lab(45.30, 55.17, 41.79)
CIE-LCH	lch(45.30, 69.21, 37.15°)
OKLab	oklab(54.96% 0.1571 0.0905)
OKLCH	oklch(54.96% 0.181 29.9)
XYZ	xyz(24.7781, 14.7597, 3.5513)
Luminance	0.1476 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#C53728 #28B6C5

analogous

#C52868 #C53728 #C58528

triadic

#C53728 #28C537 #3728C5

tetradic

#C53728 #68C528 #28B6C5 #8528C5

square

#C53728 #68C528 #28B6C5 #8528C5

split-complementary

#C53728 #28C585 #2868C5

monochromatic

#5F1B13 #92291E #C53728 #DB5C4F #E68B82

Accessibility & contrast

On white

5.31

#C53728 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.95

#C53728 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #C53728

5.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##C53728	#FFFFFF	#000000	##FFFFFF
##C53728	1.00	5.31	3.95	5.31
#FFFFFF	5.31	1.00	21.00	1.00
#000000	3.95	21.00	1.00	21.00
##FFFFFF	5.31	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#625725

Deuteranopia (green-blind)

#857722

Tritanopia (blue-blind)

#D90035

Achromatopsia (no color)

#6B6B6B

Design tokens & code

CSS

--color: #c53728;
/* rgb */ color: rgb(197, 55, 40);
/* oklch */ color: oklch(55.0% 0.181 29.9);

Tailwind

colors: {
  custom: {
    50: '#e07863',
    500: '#c53728',
    950: '#000000',
  },
}

SCSS

$custom: #c53728;
$custom-light: #e07863;
$custom-dark: #000000;

JSON

{
  "hex": "#c53728",
  "rgb": {
    "r": 197,
    "g": 55,
    "b": 40
  },
  "hsl": {
    "h": 5.732,
    "s": 66.245,
    "l": 46.471
  },
  "oklch": {
    "l": 0.54964,
    "c": 0.18127,
    "h": 29.9
  },
  "luminance": 0.14756
}

Semantic roles & 50–950 ramp

primary

#C53728

secondary

#7AC6CE

accent

#D9E93F

background

#FFF7F6

surface

#FEEEEB

border

#D6C9C6

text

#170905

muted

#857B7A

Preview Lab

Preview with #C53728

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

Preview Lab → · Contrast checker → · Palette generator →