#CB4139#CB4139

#CB4139 is a mid, vivid red. Relative luminance 0.168; OKLCH L 57.2% C 0.176 H 27.4°. Best body text is #FFFFFF at 4.82:1 contrast (WCAG AA passes).

Color values

HEX	#CB4139
RGB	rgb(203, 65, 57)
HSL	hsl(3, 58%, 51%)
HSV	hsv(3, 72%, 80%)
CMYK	cmyk(0%, 68%, 71.9%, 20.4%)
CIE-LAB	lab(47.98, 53.97, 35.61)
CIE-LCH	lch(47.98, 64.66, 33.41°)
OKLab	oklab(57.23% 0.1561 0.081)
OKLCH	oklch(57.23% 0.176 27.4)
XYZ	xyz(27.2604, 16.7765, 5.6729)
Luminance	0.1677 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#CB4139 #39C3CB

analogous

#CB397A #CB4139 #CB8A39

triadic

#CB4139 #39CB41 #4139CB

tetradic

#CB4139 #7ACB39 #39C3CB #8A39CB

square

#CB4139 #7ACB39 #39C3CB #8A39CB

split-complementary

#CB4139 #39CB8A #397ACB

monochromatic

#6D211D #9D3029 #CB4139 #D87069 #E49E9A

Accessibility & contrast

On white

4.82

#CB4139 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.35

#CB4139 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #CB4139

4.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##CB4139	#FFFFFF	#000000	##FFFFFF
##CB4139	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)

#685F37

Deuteranopia (green-blind)

#8A7D34

Tritanopia (blue-blind)

#DF1740

Achromatopsia (no color)

#727272

Design tokens & code

CSS

--color: #cb4139;
/* rgb */ color: rgb(203, 65, 57);
/* oklch */ color: oklch(57.2% 0.176 27.4);

Tailwind

colors: {
  custom: {
    50: '#e37d70',
    500: '#cb4139',
    950: '#000000',
  },
}

SCSS

$custom: #cb4139;
$custom-light: #e37d70;
$custom-dark: #000000;

JSON

{
  "hex": "#cb4139",
  "rgb": {
    "r": 203,
    "g": 65,
    "b": 57
  },
  "hsl": {
    "h": 3.288,
    "s": 58.4,
    "l": 50.98
  },
  "oklch": {
    "l": 0.57225,
    "c": 0.17582,
    "h": 27.4
  },
  "luminance": 0.16773
}

Semantic roles & 50–950 ramp

primary

#CB4139

secondary

#90CDD0

accent

#D9E246

background

#FFF8F6

surface

#FEEFEC

border

#D6CAC7

text

#170A07

muted

#857C7A

Preview Lab

Preview with #CB4139

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

Preview Lab → · Contrast checker → · Palette generator →