#64403F#64403F

#64403F is a dark, muted red. Relative luminance 0.067; OKLCH L 41.3% C 0.051 H 21.2°. Best body text is #FFFFFF at 8.95:1 contrast (WCAG AA passes).

Color values

HEX	#64403F
RGB	rgb(100, 64, 63)
HSL	hsl(2, 23%, 32%)
HSV	hsv(2, 37%, 39%)
CMYK	cmyk(0%, 36%, 37%, 60.8%)
CIE-LAB	lab(31.20, 15.56, 7.08)
CIE-LCH	lch(31.20, 17.10, 24.47°)
OKLab	oklab(41.28% 0.0472 0.0184)
OKLCH	oklch(41.28% 0.051 21.2)
XYZ	xyz(7.9864, 6.7356, 5.5811)
Luminance	0.0673 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#64403F #3F6364

analogous

#643F51 #64403F #64533F

triadic

#64403F #3F6440 #403F64

tetradic

#64403F #51643F #3F6364 #533F64

square

#64403F #51643F #3F6364 #533F64

split-complementary

#64403F #3F6453 #3F5164

monochromatic

#191010 #3E2827 #64403F #8A5857 #A87775

Accessibility & contrast

On white

8.95

#64403F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.35

#64403F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #64403F

8.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##64403F	#FFFFFF	#000000	##FFFFFF
##64403F	1.00	8.95	2.35	8.95
#FFFFFF	8.95	1.00	21.00	1.00
#000000	2.35	21.00	1.00	21.00
##FFFFFF	8.95	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#47453F

Deuteranopia (green-blind)

#504C3E

Tritanopia (blue-blind)

#6B3C40

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #64403f;
/* rgb */ color: rgb(100, 64, 63);
/* oklch */ color: oklch(41.3% 0.051 21.2);

Tailwind

colors: {
  custom: {
    50: '#917574',
    500: '#64403f',
    950: '#000000',
  },
}

SCSS

$custom: #64403f;
$custom-light: #917574;
$custom-dark: #000000;

JSON

{
  "hex": "#64403f",
  "rgb": {
    "r": 100,
    "g": 64,
    "b": 63
  },
  "hsl": {
    "h": 1.622,
    "s": 22.699,
    "l": 31.961
  },
  "oklch": {
    "l": 0.4128,
    "c": 0.05068,
    "h": 21.2
  },
  "luminance": 0.06735
}

Semantic roles & 50–950 ramp

primary

#64403F

secondary

#6B9394

accent

#BDBF69

background

#F9F7F7

surface

#F1EDED

border

#CBC8C8

text

#0D0808

muted

#7E7B7B

Preview Lab

Preview with #64403F

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

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