#63403F#63403F

#63403F is a dark, muted red. Relative luminance 0.067; OKLCH L 41.1% C 0.049 H 21.2°. Best body text is #FFFFFF at 8.99:1 contrast (WCAG AA passes).

Color values

HEX	#63403F
RGB	rgb(99, 64, 63)
HSL	hsl(2, 22%, 32%)
HSV	hsv(2, 36%, 39%)
CMYK	cmyk(0%, 35.4%, 36.4%, 61.2%)
CIE-LAB	lab(31.06, 15.13, 6.87)
CIE-LCH	lch(31.06, 16.61, 24.44°)
OKLab	oklab(41.15% 0.0459 0.0178)
OKLCH	oklch(41.15% 0.049 21.2)
XYZ	xyz(7.8765, 6.6789, 5.5760)
Luminance	0.0668 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63403F #3F6263

analogous

#633F50 #63403F #63523F

triadic

#63403F #3F6340 #403F63

tetradic

#63403F #50633F #3F6263 #523F63

square

#63403F #50633F #3F6263 #523F63

split-complementary

#63403F #3F6352 #3F5063

monochromatic

#18100F #3E2827 #63403F #885857 #A77775

Accessibility & contrast

On white

8.99

#63403F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.34

#63403F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #63403F

8.99:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63403F	#FFFFFF	#000000	##FFFFFF
##63403F	1.00	8.99	2.34	8.99
#FFFFFF	8.99	1.00	21.00	1.00
#000000	2.34	21.00	1.00	21.00
##FFFFFF	8.99	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#47453F

Deuteranopia (green-blind)

#4F4C3E

Tritanopia (blue-blind)

#6A3C40

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #63403f;
/* rgb */ color: rgb(99, 64, 63);
/* oklch */ color: oklch(41.1% 0.049 21.2);

Tailwind

colors: {
  custom: {
    50: '#917574',
    500: '#63403f',
    950: '#000000',
  },
}

SCSS

$custom: #63403f;
$custom-light: #917574;
$custom-dark: #000000;

JSON

{
  "hex": "#63403f",
  "rgb": {
    "r": 99,
    "g": 64,
    "b": 63
  },
  "hsl": {
    "h": 1.667,
    "s": 22.222,
    "l": 31.765
  },
  "oklch": {
    "l": 0.41149,
    "c": 0.04927,
    "h": 21.2
  },
  "luminance": 0.06678
}

Semantic roles & 50–950 ramp

primary

#63403F

secondary

#6B9293

accent

#BCBF69

background

#F9F7F7

surface

#F1EDED

border

#CBC8C8

text

#0D0808

muted

#7E7B7B

Preview Lab

Preview with #63403F

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

Preview Lab → · Contrast checker → · Palette generator →