#644B1C#644B1C

#644B1C is a dark, moderate orange. Relative luminance 0.078; OKLCH L 43.0% C 0.072 H 80.4°. Best body text is #FFFFFF at 8.19:1 contrast (WCAG AA passes).

Color values

HEX	#644B1C
RGB	rgb(100, 75, 28)
HSL	hsl(39, 56%, 25%)
HSV	hsv(39, 72%, 39%)
CMYK	cmyk(0%, 25%, 72%, 60.8%)
CIE-LAB	lab(33.62, 5.09, 31.17)
CIE-LCH	lch(33.62, 31.58, 80.73°)
OKLab	oklab(42.96% 0.0119 0.0706)
OKLCH	oklch(42.96% 0.072 80.4)
XYZ	xyz(7.9817, 7.8259, 2.1885)
Luminance	0.0783 (WCAG relative)
Temperature	warm
Family	orange

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#644B1C #1C3564

analogous

#64271C #644B1C #59641C

triadic

#644B1C #1C644B #4B1C64

tetradic

#644B1C #1C6427 #1C3564 #641C59

square

#644B1C #1C6427 #1C3564 #641C59

split-complementary

#644B1C #1C5964 #271C64

monochromatic

#181207 #34270F #644B1C #946F29 #C49337

Accessibility & contrast

On white

8.19

#644B1C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.57

#644B1C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #644B1C

8.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##644B1C	#FFFFFF	#000000	##FFFFFF
##644B1C	1.00	8.19	2.57	8.19
#FFFFFF	8.19	1.00	21.00	1.00
#000000	2.57	21.00	1.00	21.00
##FFFFFF	8.19	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#554B17

Deuteranopia (green-blind)

#5B521E

Tritanopia (blue-blind)

#6D4441

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #644b1c;
/* rgb */ color: rgb(100, 75, 28);
/* oklch */ color: oklch(43.0% 0.072 80.4);

Tailwind

colors: {
  custom: {
    50: '#937d5b',
    500: '#644b1c',
    950: '#000000',
  },
}

SCSS

$custom: #644b1c;
$custom-light: #937d5b;
$custom-dark: #000000;

JSON

{
  "hex": "#644b1c",
  "rgb": {
    "r": 100,
    "g": 75,
    "b": 28
  },
  "hsl": {
    "h": 39.167,
    "s": 56.25,
    "l": 25.098
  },
  "oklch": {
    "l": 0.42962,
    "c": 0.07162,
    "h": 80.4
  },
  "luminance": 0.07825
}

Semantic roles & 50–950 ramp

primary

#644B1C

secondary

#436199

accent

#7DE048

background

#F9F7F5

surface

#F2EEE9

border

#CCC9C5

text

#0D0904

muted

#7E7B79

Preview Lab

Preview with #644B1C

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

Preview Lab → · Contrast checker → · Palette generator →