#CB3F3D#CB3F3D

#CB3F3D is a mid, vivid red. Relative luminance 0.166; OKLCH L 57.1% C 0.177 H 25.4°. Best body text is #FFFFFF at 4.86:1 contrast (WCAG AA passes).

Color values

HEX	#CB3F3D
RGB	rgb(203, 63, 61)
HSL	hsl(1, 58%, 52%)
HSV	hsv(1, 70%, 80%)
CMYK	cmyk(0%, 69%, 70%, 20.4%)
CIE-LAB	lab(47.74, 54.95, 33.03)
CIE-LCH	lch(47.74, 64.11, 31.01°)
OKLab	oklab(57.07% 0.16 0.0761)
OKLCH	oklch(57.07% 0.177 25.4)
XYZ	xyz(27.2514, 16.5924, 6.1817)
Luminance	0.1659 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#CB3F3D #3DC9CB

analogous

#CB3D82 #CB3F3D #CB863D

triadic

#CB3F3D #3DCB3F #3F3DCB

tetradic

#CB3F3D #82CB3D #3DC9CB #863DCB

square

#CB3F3D #82CB3D #3DC9CB #863DCB

split-complementary

#CB3F3D #3DCB86 #3D82CB

monochromatic

#701F1E #A02D2B #CB3F3D #D86F6D #E59F9E

Accessibility & contrast

On white

4.86

#CB3F3D on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.32

#CB3F3D on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #CB3F3D

4.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##CB3F3D	#FFFFFF	#000000	##FFFFFF
##CB3F3D	1.00	4.86	4.32	4.86
#FFFFFF	4.86	1.00	21.00	1.00
#000000	4.32	21.00	1.00	21.00
##FFFFFF	4.86	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#665E3B

Deuteranopia (green-blind)

#897C39

Tritanopia (blue-blind)

#DF1340

Achromatopsia (no color)

#717171

Design tokens & code

CSS

--color: #cb3f3d;
/* rgb */ color: rgb(203, 63, 61);
/* oklch */ color: oklch(57.1% 0.177 25.4);

Tailwind

colors: {
  custom: {
    50: '#e37d73',
    500: '#cb3f3d',
    950: '#000000',
  },
}

SCSS

$custom: #cb3f3d;
$custom-light: #e37d73;
$custom-dark: #000000;

JSON

{
  "hex": "#cb3f3d",
  "rgb": {
    "r": 203,
    "g": 63,
    "b": 61
  },
  "hsl": {
    "h": 0.845,
    "s": 57.724,
    "l": 51.765
  },
  "oklch": {
    "l": 0.57066,
    "c": 0.17714,
    "h": 25.4
  },
  "luminance": 0.16588
}

Semantic roles & 50–950 ramp

primary

#CB3F3D

secondary

#93D0D1

accent

#DFE147

background

#FFF7F6

surface

#FEEEEC

border

#D6C9C7

text

#170A08

muted

#857C7B

Preview Lab

Preview with #CB3F3D

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

Preview Lab → · Contrast checker → · Palette generator →