#CB4638#CB4638

#CB4638 is a mid, vivid red. Relative luminance 0.174; OKLCH L 57.8% C 0.171 H 29.3°. Best body text is #FFFFFF at 4.70:1 contrast (WCAG AA passes).

Color values

HEX	#CB4638
RGB	rgb(203, 70, 56)
HSL	hsl(6, 59%, 51%)
HSV	hsv(6, 72%, 80%)
CMYK	cmyk(0%, 65.5%, 72.4%, 20.4%)
CIE-LAB	lab(48.72, 51.88, 37.02)
CIE-LCH	lch(48.72, 63.74, 35.51°)
OKLab	oklab(57.78% 0.1493 0.0838)
OKLCH	oklch(57.78% 0.171 29.3)
XYZ	xyz(27.5355, 17.3663, 5.6427)
Luminance	0.1736 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#CB4638 #38BDCB

analogous

#CB3873 #CB4638 #CB8F38

triadic

#CB4638 #38CB46 #4638CB

tetradic

#CB4638 #73CB38 #38BDCB #8F38CB

square

#CB4638 #73CB38 #38BDCB #8F38CB

split-complementary

#CB4638 #38CB8F #3873CB

monochromatic

#6C241C #9D3429 #CB4638 #D87369 #E4A099

Accessibility & contrast

On white

4.70

#CB4638 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.47

#CB4638 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #CB4638

4.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##CB4638	#FFFFFF	#000000	##FFFFFF
##CB4638	1.00	4.70	4.47	4.70
#FFFFFF	4.70	1.00	21.00	1.00
#000000	4.47	21.00	1.00	21.00
##FFFFFF	4.70	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#6B6136

Deuteranopia (green-blind)

#8C7E34

Tritanopia (blue-blind)

#DF2244

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #cb4638;
/* rgb */ color: rgb(203, 70, 56);
/* oklch */ color: oklch(57.8% 0.171 29.3);

Tailwind

colors: {
  custom: {
    50: '#e3806f',
    500: '#cb4638',
    950: '#000000',
  },
}

SCSS

$custom: #cb4638;
$custom-light: #e3806f;
$custom-dark: #000000;

JSON

{
  "hex": "#cb4638",
  "rgb": {
    "r": 203,
    "g": 70,
    "b": 56
  },
  "hsl": {
    "h": 5.714,
    "s": 58.566,
    "l": 50.784
  },
  "oklch": {
    "l": 0.57777,
    "c": 0.17124,
    "h": 29.3
  },
  "luminance": 0.17362
}

Semantic roles & 50–950 ramp

primary

#CB4638

secondary

#8FCAD0

accent

#D3E246

background

#FFF8F6

surface

#FEEFEC

border

#D6CAC7

text

#170B07

muted

#857C7A

Preview Lab

Preview with #CB4638

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

Preview Lab → · Contrast checker → · Palette generator →