#CB3A3A#CB3A3A

#CB3A3A is a mid, vivid red. Relative luminance 0.160; OKLCH L 56.5% C 0.182 H 25.2°. Best body text is #FFFFFF at 4.99:1 contrast (WCAG AA passes).

Color values

HEX	#CB3A3A
RGB	rgb(203, 58, 58)
HSL	hsl(0, 58%, 51%)
HSV	hsv(0, 71%, 80%)
CMYK	cmyk(0%, 71.4%, 71.4%, 20.4%)
CIE-LAB	lab(47.02, 56.69, 33.92)
CIE-LCH	lch(47.02, 66.06, 30.90°)
OKLab	oklab(56.51% 0.1649 0.0775)
OKLCH	oklch(56.51% 0.182 25.2)
XYZ	xyz(26.9084, 16.0322, 5.6798)
Luminance	0.1603 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#CB3A3A #3ACBCB

analogous

#CB3A82 #CB3A3A #CB823A

triadic

#CB3A3A #3ACB3A #3A3ACB

tetradic

#CB3A3A #82CB3A #3ACBCB #823ACB

square

#CB3A3A #82CB3A #3ACBCB #823ACB

split-complementary

#CB3A3A #3ACB82 #3A82CB

monochromatic

#6E1D1D #9E2A2A #CB3A3A #D86A6A #E59B9B

Accessibility & contrast

On white

4.99

#CB3A3A on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.21

#CB3A3A on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #CB3A3A

4.99:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##CB3A3A	#FFFFFF	#000000	##FFFFFF
##CB3A3A	1.00	4.99	4.21	4.99
#FFFFFF	4.99	1.00	21.00	1.00
#000000	4.21	21.00	1.00	21.00
##FFFFFF	4.99	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#645C38

Deuteranopia (green-blind)

#887B35

Tritanopia (blue-blind)

#DF003C

Achromatopsia (no color)

#6F6F6F

Design tokens & code

CSS

--color: #cb3a3a;
/* rgb */ color: rgb(203, 58, 58);
/* oklch */ color: oklch(56.5% 0.182 25.2);

Tailwind

colors: {
  custom: {
    50: '#e37a70',
    500: '#cb3a3a',
    950: '#000000',
  },
}

SCSS

$custom: #cb3a3a;
$custom-light: #e37a70;
$custom-dark: #000000;

JSON

{
  "hex": "#cb3a3a",
  "rgb": {
    "r": 203,
    "g": 58,
    "b": 58
  },
  "hsl": {
    "h": 0,
    "s": 58.233,
    "l": 51.176
  },
  "oklch": {
    "l": 0.56511,
    "c": 0.18215,
    "h": 25.2
  },
  "luminance": 0.16028
}

Semantic roles & 50–950 ramp

primary

#CB3A3A

secondary

#90D0D0

accent

#E1E146

background

#FFF7F6

surface

#FEEEEC

border

#D6C9C7

text

#170A07

muted

#857C7A

Preview Lab

Preview with #CB3A3A

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

Preview Lab → · Contrast checker → · Palette generator →