#CB4138#CB4138

#CB4138 is a mid, vivid red. Relative luminance 0.168; OKLCH L 57.2% C 0.176 H 27.8°. Best body text is #FFFFFF at 4.82:1 contrast (WCAG AA passes).

Color values

HEX	#CB4138
RGB	rgb(203, 65, 56)
HSL	hsl(4, 59%, 51%)
HSV	hsv(4, 72%, 80%)
CMYK	cmyk(0%, 68%, 72.4%, 20.4%)
CIE-LAB	lab(47.96, 53.93, 36.16)
CIE-LCH	lch(47.96, 64.93, 33.84°)
OKLab	oklab(57.21% 0.1557 0.082)
OKLCH	oklch(57.21% 0.176 27.8)
XYZ	xyz(27.2357, 16.7666, 5.5428)
Luminance	0.1676 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#CB4138 #38C2CB

analogous

#CB3879 #CB4138 #CB8A38

triadic

#CB4138 #38CB41 #4138CB

tetradic

#CB4138 #79CB38 #38C2CB #8A38CB

square

#CB4138 #79CB38 #38C2CB #8A38CB

split-complementary

#CB4138 #38CB8A #3879CB

monochromatic

#6C211C #9D3029 #CB4138 #D86F69 #E49E99

Accessibility & contrast

On white

4.82

#CB4138 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.35

#CB4138 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #CB4138

4.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##CB4138	#FFFFFF	#000000	##FFFFFF
##CB4138	1.00	4.82	4.35	4.82
#FFFFFF	4.82	1.00	21.00	1.00
#000000	4.35	21.00	1.00	21.00
##FFFFFF	4.82	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#685F36

Deuteranopia (green-blind)

#8A7D33

Tritanopia (blue-blind)

#DF1640

Achromatopsia (no color)

#727272

Design tokens & code

CSS

--color: #cb4138;
/* rgb */ color: rgb(203, 65, 56);
/* oklch */ color: oklch(57.2% 0.176 27.8);

Tailwind

colors: {
  custom: {
    50: '#e37d6f',
    500: '#cb4138',
    950: '#000000',
  },
}

SCSS

$custom: #cb4138;
$custom-light: #e37d6f;
$custom-dark: #000000;

JSON

{
  "hex": "#cb4138",
  "rgb": {
    "r": 203,
    "g": 65,
    "b": 56
  },
  "hsl": {
    "h": 3.673,
    "s": 58.566,
    "l": 50.784
  },
  "oklch": {
    "l": 0.57212,
    "c": 0.17599,
    "h": 27.8
  },
  "luminance": 0.16763
}

Semantic roles & 50–950 ramp

primary

#CB4138

secondary

#8FCCD0

accent

#D8E246

background

#FFF8F6

surface

#FEEFEC

border

#D6CAC7

text

#170A07

muted

#857C7A

Preview Lab

Preview with #CB4138

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

Preview Lab → · Contrast checker → · Palette generator →