#CB4039#CB4039

#CB4039 is a mid, vivid red. Relative luminance 0.167; OKLCH L 57.1% C 0.177 H 27.1°. Best body text is #FFFFFF at 4.85:1 contrast (WCAG AA passes).

Color values

HEX	#CB4039
RGB	rgb(203, 64, 57)
HSL	hsl(3, 58%, 51%)
HSV	hsv(3, 72%, 80%)
CMYK	cmyk(0%, 68.5%, 71.9%, 20.4%)
CIE-LAB	lab(47.83, 54.37, 35.44)
CIE-LCH	lch(47.83, 64.90, 33.10°)
OKLab	oklab(57.12% 0.1573 0.0806)
OKLCH	oklch(57.12% 0.177 27.1)
XYZ	xyz(27.2035, 16.6627, 5.6539)
Luminance	0.1666 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#CB4039 #39C4CB

analogous

#CB397B #CB4039 #CB8939

triadic

#CB4039 #39CB40 #4039CB

tetradic

#CB4039 #7BCB39 #39C4CB #8939CB

square

#CB4039 #7BCB39 #39C4CB #8939CB

split-complementary

#CB4039 #39CB89 #397BCB

monochromatic

#6D201D #9D2F29 #CB4039 #D86F69 #E49E9A

Accessibility & contrast

On white

4.85

#CB4039 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.33

#CB4039 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #CB4039

4.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##CB4039	#FFFFFF	#000000	##FFFFFF
##CB4039	1.00	4.85	4.33	4.85
#FFFFFF	4.85	1.00	21.00	1.00
#000000	4.33	21.00	1.00	21.00
##FFFFFF	4.85	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#675E37

Deuteranopia (green-blind)

#8A7D34

Tritanopia (blue-blind)

#DF1440

Achromatopsia (no color)

#717171

Design tokens & code

CSS

--color: #cb4039;
/* rgb */ color: rgb(203, 64, 57);
/* oklch */ color: oklch(57.1% 0.177 27.1);

Tailwind

colors: {
  custom: {
    50: '#e37d70',
    500: '#cb4039',
    950: '#000000',
  },
}

SCSS

$custom: #cb4039;
$custom-light: #e37d70;
$custom-dark: #000000;

JSON

{
  "hex": "#cb4039",
  "rgb": {
    "r": 203,
    "g": 64,
    "b": 57
  },
  "hsl": {
    "h": 2.877,
    "s": 58.4,
    "l": 50.98
  },
  "oklch": {
    "l": 0.57117,
    "c": 0.17677,
    "h": 27.1
  },
  "luminance": 0.16659
}

Semantic roles & 50–950 ramp

primary

#CB4039

secondary

#90CDD0

accent

#DAE246

background

#FFF8F6

surface

#FEEFEC

border

#D6CAC7

text

#170A07

muted

#857C7A

Preview Lab

Preview with #CB4039

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

Preview Lab → · Contrast checker → · Palette generator →