#63403D#63403D

#63403D is a dark, muted red. Relative luminance 0.067; OKLCH L 41.1% C 0.050 H 24.9°. Best body text is #FFFFFF at 9.01:1 contrast (WCAG AA passes).

Color values

HEX	#63403D
RGB	rgb(99, 64, 61)
HSL	hsl(5, 24%, 31%)
HSV	hsv(5, 38%, 39%)
CMYK	cmyk(0%, 35.4%, 38.4%, 61.2%)
CIE-LAB	lab(31.01, 14.84, 8.09)
CIE-LCH	lch(31.01, 16.90, 28.60°)
OKLab	oklab(41.09% 0.045 0.0209)
OKLCH	oklch(41.09% 0.05 24.9)
XYZ	xyz(7.8216, 6.6569, 5.2869)
Luminance	0.0666 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63403D #3D6063

analogous

#633D4D #63403D #63533D

triadic

#63403D #3D6340 #403D63

tetradic

#63403D #4D633D #3D6063 #533D63

square

#63403D #4D633D #3D6063 #533D63

split-complementary

#63403D #3D6353 #3D4D63

monochromatic

#170F0E #3D2826 #63403D #895854 #A87672

Accessibility & contrast

On white

9.01

#63403D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.33

#63403D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #63403D

9.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63403D	#FFFFFF	#000000	##FFFFFF
##63403D	1.00	9.01	2.33	9.01
#FFFFFF	9.01	1.00	21.00	1.00
#000000	2.33	21.00	1.00	21.00
##FFFFFF	9.01	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#47453D

Deuteranopia (green-blind)

#504C3D

Tritanopia (blue-blind)

#6A3C3F

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #63403d;
/* rgb */ color: rgb(99, 64, 61);
/* oklch */ color: oklch(41.1% 0.050 24.9);

Tailwind

colors: {
  custom: {
    50: '#917572',
    500: '#63403d',
    950: '#000000',
  },
}

SCSS

$custom: #63403d;
$custom-light: #917572;
$custom-dark: #000000;

JSON

{
  "hex": "#63403d",
  "rgb": {
    "r": 99,
    "g": 64,
    "b": 61
  },
  "hsl": {
    "h": 4.737,
    "s": 23.75,
    "l": 31.373
  },
  "oklch": {
    "l": 0.41092,
    "c": 0.04961,
    "h": 24.9
  },
  "luminance": 0.06656
}

Semantic roles & 50–950 ramp

primary

#63403D

secondary

#699093

accent

#B9C068

background

#F9F7F6

surface

#F1EDEC

border

#CBC8C7

text

#0D0808

muted

#7E7B7B

Preview Lab

Preview with #63403D

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

Preview Lab → · Contrast checker → · Palette generator →