#CB443B#CB443B

#CB443B is a mid, vivid red. Relative luminance 0.171; OKLCH L 57.6% C 0.173 H 27.6°. Best body text is #FFFFFF at 4.74:1 contrast (WCAG AA passes).

Color values

HEX	#CB443B
RGB	rgb(203, 68, 59)
HSL	hsl(4, 58%, 51%)
HSV	hsv(4, 71%, 80%)
CMYK	cmyk(0%, 66.5%, 70.9%, 20.4%)
CIE-LAB	lab(48.45, 52.85, 35.01)
CIE-LCH	lch(48.45, 63.40, 33.52°)
OKLab	oklab(57.59% 0.153 0.0801)
OKLCH	oklch(57.59% 0.173 27.6)
XYZ	xyz(27.4881, 17.1505, 5.9998)
Luminance	0.1715 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#CB443B #3BC2CB

analogous

#CB3B7A #CB443B #CB8C3B

triadic

#CB443B #3BCB44 #443BCB

tetradic

#CB443B #7ACB3B #3BC2CB #8C3BCB

square

#CB443B #7ACB3B #3BC2CB #8C3BCB

split-complementary

#CB443B #3BCB8C #3B7ACB

monochromatic

#6E221D #9F312A #CB443B #D8726B #E5A09C

Accessibility & contrast

On white

4.74

#CB443B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.43

#CB443B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #CB443B

4.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##CB443B	#FFFFFF	#000000	##FFFFFF
##CB443B	1.00	4.74	4.43	4.74
#FFFFFF	4.74	1.00	21.00	1.00
#000000	4.43	21.00	1.00	21.00
##FFFFFF	4.74	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#6A6039

Deuteranopia (green-blind)

#8B7E37

Tritanopia (blue-blind)

#DF1F43

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #cb443b;
/* rgb */ color: rgb(203, 68, 59);
/* oklch */ color: oklch(57.6% 0.173 27.6);

Tailwind

colors: {
  custom: {
    50: '#e37f71',
    500: '#cb443b',
    950: '#000000',
  },
}

SCSS

$custom: #cb443b;
$custom-light: #e37f71;
$custom-dark: #000000;

JSON

{
  "hex": "#cb443b",
  "rgb": {
    "r": 203,
    "g": 68,
    "b": 59
  },
  "hsl": {
    "h": 3.75,
    "s": 58.065,
    "l": 51.373
  },
  "oklch": {
    "l": 0.57587,
    "c": 0.17264,
    "h": 27.6
  },
  "luminance": 0.17147
}

Semantic roles & 50–950 ramp

primary

#CB443B

secondary

#91CDD1

accent

#D8E147

background

#FFF8F6

surface

#FEEFEC

border

#D6CAC7

text

#170B08

muted

#857C7B

Preview Lab

Preview with #CB443B

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

Preview Lab → · Contrast checker → · Palette generator →