#CB4040#CB4040

#CB4040 is a mid, vivid red. Relative luminance 0.167; OKLCH L 57.2% C 0.176 H 24.6°. Best body text is #FFFFFF at 4.83:1 contrast (WCAG AA passes).

Color values

HEX	#CB4040
RGB	rgb(203, 64, 64)
HSL	hsl(0, 57%, 52%)
HSV	hsv(0, 68%, 80%)
CMYK	cmyk(0%, 68.5%, 68.5%, 20.4%)
CIE-LAB	lab(47.93, 54.71, 31.51)
CIE-LCH	lch(47.93, 63.13, 29.94°)
OKLab	oklab(57.22% 0.1598 0.0732)
OKLCH	oklch(57.22% 0.176 24.6)
XYZ	xyz(27.3903, 16.7374, 6.6379)
Luminance	0.1673 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#CB4040 #40CBCB

analogous

#CB4086 #CB4040 #CB8640

triadic

#CB4040 #40CB40 #4040CB

tetradic

#CB4040 #86CB40 #40CBCB #8640CB

square

#CB4040 #86CB40 #40CBCB #8640CB

split-complementary

#CB4040 #40CB86 #4086CB

monochromatic

#721F1F #A22C2C #CB4040 #D87070 #E5A0A0

Accessibility & contrast

On white

4.83

#CB4040 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.35

#CB4040 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #CB4040

4.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##CB4040	#FFFFFF	#000000	##FFFFFF
##CB4040	1.00	4.83	4.35	4.83
#FFFFFF	4.83	1.00	21.00	1.00
#000000	4.35	21.00	1.00	21.00
##FFFFFF	4.83	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#675F3F

Deuteranopia (green-blind)

#897D3C

Tritanopia (blue-blind)

#DF1742

Achromatopsia (no color)

#727272

Design tokens & code

CSS

--color: #cb4040;
/* rgb */ color: rgb(203, 64, 64);
/* oklch */ color: oklch(57.2% 0.176 24.6);

Tailwind

colors: {
  custom: {
    50: '#e37d75',
    500: '#cb4040',
    950: '#000000',
  },
}

SCSS

$custom: #cb4040;
$custom-light: #e37d75;
$custom-dark: #000000;

JSON

{
  "hex": "#cb4040",
  "rgb": {
    "r": 203,
    "g": 64,
    "b": 64
  },
  "hsl": {
    "h": 0,
    "s": 57.202,
    "l": 52.353
  },
  "oklch": {
    "l": 0.57218,
    "c": 0.1758,
    "h": 24.6
  },
  "luminance": 0.16733
}

Semantic roles & 50–950 ramp

primary

#CB4040

secondary

#95D2D2

accent

#E0E047

background

#FFF8F7

surface

#FEEFED

border

#D6CAC8

text

#170A08

muted

#857C7B

Preview Lab

Preview with #CB4040

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

Preview Lab → · Contrast checker → · Palette generator →