#CB403D#CB403D

#CB403D is a mid, vivid red. Relative luminance 0.167; OKLCH L 57.2% C 0.176 H 25.7°. Best body text is #FFFFFF at 4.84:1 contrast (WCAG AA passes).

Color values

HEX	#CB403D
RGB	rgb(203, 64, 61)
HSL	hsl(1, 58%, 52%)
HSV	hsv(1, 70%, 80%)
CMYK	cmyk(0%, 68.5%, 70%, 20.4%)
CIE-LAB	lab(47.89, 54.56, 33.20)
CIE-LCH	lch(47.89, 63.87, 31.32°)
OKLab	oklab(57.17% 0.1587 0.0764)
OKLCH	oklch(57.17% 0.176 25.7)
XYZ	xyz(27.3073, 16.7042, 6.2003)
Luminance	0.1670 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#CB403D #3DC8CB

analogous

#CB3D81 #CB403D #CB873D

triadic

#CB403D #3DCB40 #403DCB

tetradic

#CB403D #81CB3D #3DC8CB #873DCB

square

#CB403D #81CB3D #3DC8CB #873DCB

split-complementary

#CB403D #3DCB87 #3D81CB

monochromatic

#70201E #A02D2B #CB403D #D8706D #E59F9E

Accessibility & contrast

On white

4.84

#CB403D on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.34

#CB403D on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #CB403D

4.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##CB403D	#FFFFFF	#000000	##FFFFFF
##CB403D	1.00	4.84	4.34	4.84
#FFFFFF	4.84	1.00	21.00	1.00
#000000	4.34	21.00	1.00	21.00
##FFFFFF	4.84	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#675F3B

Deuteranopia (green-blind)

#8A7D39

Tritanopia (blue-blind)

#DF1641

Achromatopsia (no color)

#727272

Design tokens & code

CSS

--color: #cb403d;
/* rgb */ color: rgb(203, 64, 61);
/* oklch */ color: oklch(57.2% 0.176 25.7);

Tailwind

colors: {
  custom: {
    50: '#e37d73',
    500: '#cb403d',
    950: '#000000',
  },
}

SCSS

$custom: #cb403d;
$custom-light: #e37d73;
$custom-dark: #000000;

JSON

{
  "hex": "#cb403d",
  "rgb": {
    "r": 203,
    "g": 64,
    "b": 61
  },
  "hsl": {
    "h": 1.268,
    "s": 57.724,
    "l": 51.765
  },
  "oklch": {
    "l": 0.57173,
    "c": 0.17619,
    "h": 25.7
  },
  "luminance": 0.167
}

Semantic roles & 50–950 ramp

primary

#CB403D

secondary

#93D0D1

accent

#DEE147

background

#FFF8F6

surface

#FEEFEC

border

#D6CAC7

text

#170A08

muted

#857C7B

Preview Lab

Preview with #CB403D

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

Preview Lab → · Contrast checker → · Palette generator →