#64381C#64381C

#64381C is a dark, moderate orange. Relative luminance 0.056; OKLCH L 38.9% C 0.075 H 51.3°. Best body text is #FFFFFF at 9.89:1 contrast (WCAG AA passes).

Color values

HEX	#64381C
RGB	rgb(100, 56, 28)
HSL	hsl(23, 56%, 25%)
HSV	hsv(23, 72%, 39%)
CMYK	cmyk(0%, 44%, 72%, 60.8%)
CIE-LAB	lab(28.44, 16.83, 25.47)
CIE-LCH	lch(28.44, 30.53, 56.54°)
OKLab	oklab(38.93% 0.0467 0.0584)
OKLCH	oklch(38.93% 0.075 51.3)
XYZ	xyz(6.8799, 5.6222, 1.8213)
Luminance	0.0562 (WCAG relative)
Temperature	warm
Family	orange

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#64381C #1C4864

analogous

#641C24 #64381C #645C1C

triadic

#64381C #1C6438 #381C64

tetradic

#64381C #24641C #1C4864 #5C1C64

square

#64381C #24641C #1C4864 #5C1C64

split-complementary

#64381C #1C645C #1C2464

monochromatic

#180D07 #341D0F #64381C #945329 #C46E37

Accessibility & contrast

On white

9.89

#64381C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.12

#64381C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #64381C

9.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##64381C	#FFFFFF	#000000	##FFFFFF
##64381C	1.00	9.89	2.12	9.89
#FFFFFF	9.89	1.00	21.00	1.00
#000000	2.12	21.00	1.00	21.00
##FFFFFF	9.89	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#443D19

Deuteranopia (green-blind)

#4F471C

Tritanopia (blue-blind)

#6E2F32

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #64381c;
/* rgb */ color: rgb(100, 56, 28);
/* oklch */ color: oklch(38.9% 0.075 51.3);

Tailwind

colors: {
  custom: {
    50: '#946f59',
    500: '#64381c',
    950: '#000000',
  },
}

SCSS

$custom: #64381c;
$custom-light: #946f59;
$custom-dark: #000000;

JSON

{
  "hex": "#64381c",
  "rgb": {
    "r": 100,
    "g": 56,
    "b": 28
  },
  "hsl": {
    "h": 23.333,
    "s": 56.25,
    "l": 25.098
  },
  "oklch": {
    "l": 0.38935,
    "c": 0.0748,
    "h": 51.3
  },
  "luminance": 0.05622
}

Semantic roles & 50–950 ramp

primary

#64381C

secondary

#437899

accent

#A5E048

background

#F9F6F5

surface

#F2ECE9

border

#CCC7C5

text

#0E0703

muted

#7E7A78

Preview Lab

Preview with #64381C

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

Preview Lab → · Contrast checker → · Palette generator →