#64281C#64281C

#64281C is a dark, moderate red. Relative luminance 0.043; OKLCH L 36.1% C 0.090 H 33.0°. Best body text is #FFFFFF at 11.28:1 contrast (WCAG AA passes).

Color values

HEX	#64281C
RGB	rgb(100, 40, 28)
HSL	hsl(10, 56%, 25%)
HSV	hsv(10, 72%, 39%)
CMYK	cmyk(0%, 60%, 72%, 60.8%)
CIE-LAB	lab(24.68, 26.21, 21.11)
CIE-LCH	lch(24.68, 33.66, 38.85°)
OKLab	oklab(36.06% 0.0754 0.049)
OKLCH	oklch(36.06% 0.09 33)
XYZ	xyz(6.2245, 4.3115, 1.6028)
Luminance	0.0431 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#64281C #1C5864

analogous

#641C34 #64281C #644C1C

triadic

#64281C #1C6428 #281C64

tetradic

#64281C #34641C #1C5864 #4C1C64

square

#64281C #34641C #1C5864 #4C1C64

split-complementary

#64281C #1C644C #1C3464

monochromatic

#180A07 #34150F #64281C #943B29 #C44E37

Accessibility & contrast

On white

11.28

#64281C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.86

#64281C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #64281C

11.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##64281C	#FFFFFF	#000000	##FFFFFF
##64281C	1.00	11.28	1.86	11.28
#FFFFFF	11.28	1.00	21.00	1.00
#000000	1.86	21.00	1.00	21.00
##FFFFFF	11.28	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#38321B

Deuteranopia (green-blind)

#47401B

Tritanopia (blue-blind)

#6E1C25

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #64281c;
/* rgb */ color: rgb(100, 40, 28);
/* oklch */ color: oklch(36.1% 0.090 33.0);

Tailwind

colors: {
  custom: {
    50: '#956458',
    500: '#64281c',
    950: '#000000',
  },
}

SCSS

$custom: #64281c;
$custom-light: #956458;
$custom-dark: #000000;

JSON

{
  "hex": "#64281c",
  "rgb": {
    "r": 100,
    "g": 40,
    "b": 28
  },
  "hsl": {
    "h": 10,
    "s": 56.25,
    "l": 25.098
  },
  "oklch": {
    "l": 0.3606,
    "c": 0.08993,
    "h": 33
  },
  "luminance": 0.04311
}

Semantic roles & 50–950 ramp

primary

#64281C

secondary

#438B99

accent

#C6E048

background

#F9F6F5

surface

#F2EBE9

border

#CCC6C5

text

#0E0503

muted

#7E7A78

Preview Lab

Preview with #64281C

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

Preview Lab → · Contrast checker → · Palette generator →