#CB3D39#CB3D39

#CB3D39 is a mid, vivid red. Relative luminance 0.163; OKLCH L 56.8% C 0.180 H 26.3°. Best body text is #FFFFFF at 4.92:1 contrast (WCAG AA passes).

Color values

HEX	#CB3D39
RGB	rgb(203, 61, 57)
HSL	hsl(2, 58%, 51%)
HSV	hsv(2, 72%, 80%)
CMYK	cmyk(0%, 70%, 71.9%, 20.4%)
CIE-LAB	lab(47.41, 55.53, 34.95)
CIE-LCH	lch(47.41, 65.61, 32.19°)
OKLab	oklab(56.8% 0.161 0.0795)
OKLCH	oklch(56.8% 0.18 26.3)
XYZ	xyz(27.0389, 16.3334, 5.5990)
Luminance	0.1633 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#CB3D39 #39C7CB

analogous

#CB397E #CB3D39 #CB8639

triadic

#CB3D39 #39CB3D #3D39CB

tetradic

#CB3D39 #7ECB39 #39C7CB #8639CB

square

#CB3D39 #7ECB39 #39C7CB #8639CB

split-complementary

#CB3D39 #39CB86 #397ECB

monochromatic

#6D1F1D #9D2D29 #CB3D39 #D86C69 #E49C9A

Accessibility & contrast

On white

4.92

#CB3D39 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.27

#CB3D39 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #CB3D39

4.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##CB3D39	#FFFFFF	#000000	##FFFFFF
##CB3D39	1.00	4.92	4.27	4.92
#FFFFFF	4.92	1.00	21.00	1.00
#000000	4.27	21.00	1.00	21.00
##FFFFFF	4.92	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#665D37

Deuteranopia (green-blind)

#897C34

Tritanopia (blue-blind)

#DF093E

Achromatopsia (no color)

#707070

Design tokens & code

CSS

--color: #cb3d39;
/* rgb */ color: rgb(203, 61, 57);
/* oklch */ color: oklch(56.8% 0.180 26.3);

Tailwind

colors: {
  custom: {
    50: '#e37b70',
    500: '#cb3d39',
    950: '#000000',
  },
}

SCSS

$custom: #cb3d39;
$custom-light: #e37b70;
$custom-dark: #000000;

JSON

{
  "hex": "#cb3d39",
  "rgb": {
    "r": 203,
    "g": 61,
    "b": 57
  },
  "hsl": {
    "h": 1.644,
    "s": 58.4,
    "l": 50.98
  },
  "oklch": {
    "l": 0.568,
    "c": 0.17955,
    "h": 26.3
  },
  "luminance": 0.16329
}

Semantic roles & 50–950 ramp

primary

#CB3D39

secondary

#90CED0

accent

#DDE246

background

#FFF7F6

surface

#FEEEEC

border

#D6C9C7

text

#170A07

muted

#857C7A

Preview Lab

Preview with #CB3D39

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

Preview Lab → · Contrast checker → · Palette generator →