#CB4136#CB4136

#CB4136 is a mid, vivid red. Relative luminance 0.167; OKLCH L 57.2% C 0.176 H 28.4°. Best body text is #FFFFFF at 4.83:1 contrast (WCAG AA passes).

Color values

HEX	#CB4136
RGB	rgb(203, 65, 54)
HSL	hsl(4, 59%, 50%)
HSV	hsv(4, 73%, 80%)
CMYK	cmyk(0%, 68%, 73.4%, 20.4%)
CIE-LAB	lab(47.94, 53.84, 37.26)
CIE-LCH	lch(47.94, 65.48, 34.69°)
OKLab	oklab(57.19% 0.155 0.0839)
OKLCH	oklch(57.19% 0.176 28.4)
XYZ	xyz(27.1878, 16.7475, 5.2903)
Luminance	0.1674 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#CB4136 #36C0CB

analogous

#CB3675 #CB4136 #CB8C36

triadic

#CB4136 #36CB41 #4136CB

tetradic

#CB4136 #75CB36 #36C0CB #8C36CB

square

#CB4136 #75CB36 #36C0CB #8C36CB

split-complementary

#CB4136 #36CB8C #3675CB

monochromatic

#6B221C #9C3128 #CB4136 #D86F67 #E49D97

Accessibility & contrast

On white

4.83

#CB4136 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.35

#CB4136 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #CB4136

4.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##CB4136	#FFFFFF	#000000	##FFFFFF
##CB4136	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)

#685F34

Deuteranopia (green-blind)

#8B7D31

Tritanopia (blue-blind)

#DF1640

Achromatopsia (no color)

#727272

Design tokens & code

CSS

--color: #cb4136;
/* rgb */ color: rgb(203, 65, 54);
/* oklch */ color: oklch(57.2% 0.176 28.4);

Tailwind

colors: {
  custom: {
    50: '#e37d6e',
    500: '#cb4136',
    950: '#000000',
  },
}

SCSS

$custom: #cb4136;
$custom-light: #e37d6e;
$custom-dark: #000000;

JSON

{
  "hex": "#cb4136",
  "rgb": {
    "r": 203,
    "g": 65,
    "b": 54
  },
  "hsl": {
    "h": 4.43,
    "s": 58.893,
    "l": 50.392
  },
  "oklch": {
    "l": 0.57186,
    "c": 0.1763,
    "h": 28.4
  },
  "luminance": 0.16743
}

Semantic roles & 50–950 ramp

primary

#CB4136

secondary

#8DCBD0

accent

#D7E246

background

#FFF8F6

surface

#FEEFEC

border

#D6CAC7

text

#170A07

muted

#857C7A

Preview Lab

Preview with #CB4136

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

Preview Lab → · Contrast checker → · Palette generator →