#CB3634#CB3634

#CB3634 is a mid, vivid red. Relative luminance 0.156; OKLCH L 56.0% C 0.186 H 26.2°. Best body text is #FFFFFF at 5.10:1 contrast (WCAG AA passes).

Color values

HEX	#CB3634
RGB	rgb(203, 54, 52)
HSL	hsl(1, 59%, 50%)
HSV	hsv(1, 74%, 80%)
CMYK	cmyk(0%, 73.4%, 74.4%, 20.4%)
CIE-LAB	lab(46.43, 57.85, 36.70)
CIE-LCH	lch(46.43, 68.51, 32.39°)
OKLab	oklab(56.05% 0.1672 0.0823)
OKLCH	oklch(56.05% 0.186 26.2)
XYZ	xyz(26.5707, 15.5869, 4.8576)
Luminance	0.1558 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#CB3634 #34C9CB

analogous

#CB347D #CB3634 #CB8234

triadic

#CB3634 #34CB36 #3634CB

tetradic

#CB3634 #7DCB34 #34C9CB #8234CB

square

#CB3634 #7DCB34 #34C9CB #8234CB

split-complementary

#CB3634 #34CB82 #347DCB

monochromatic

#6A1C1B #9A2928 #CB3634 #D76665 #E49695

Accessibility & contrast

On white

5.10

#CB3634 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.12

#CB3634 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #CB3634

5.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##CB3634	#FFFFFF	#000000	##FFFFFF
##CB3634	1.00	5.10	4.12	5.10
#FFFFFF	5.10	1.00	21.00	1.00
#000000	4.12	21.00	1.00	21.00
##FFFFFF	5.10	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#625932

Deuteranopia (green-blind)

#877A2E

Tritanopia (blue-blind)

#DF0037

Achromatopsia (no color)

#6E6E6E

Design tokens & code

CSS

--color: #cb3634;
/* rgb */ color: rgb(203, 54, 52);
/* oklch */ color: oklch(56.0% 0.186 26.2);

Tailwind

colors: {
  custom: {
    50: '#e4786c',
    500: '#cb3634',
    950: '#000000',
  },
}

SCSS

$custom: #cb3634;
$custom-light: #e4786c;
$custom-dark: #000000;

JSON

{
  "hex": "#cb3634",
  "rgb": {
    "r": 203,
    "g": 54,
    "b": 52
  },
  "hsl": {
    "h": 0.795,
    "s": 59.216,
    "l": 50
  },
  "oklch": {
    "l": 0.56048,
    "c": 0.18638,
    "h": 26.2
  },
  "luminance": 0.15583
}

Semantic roles & 50–950 ramp

primary

#CB3634

secondary

#8CCECF

accent

#E0E245

background

#FFF7F6

surface

#FFEEEB

border

#D7C9C6

text

#170A07

muted

#857C7A

Preview Lab

Preview with #CB3634

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

Preview Lab → · Contrast checker → · Palette generator →