#643003#643003

#643003 is a dark, moderate orange. Relative luminance 0.048; OKLCH L 37.2% C 0.091 H 53.7°. Best body text is #FFFFFF at 10.68:1 contrast (WCAG AA passes).

Color values

HEX	#643003
RGB	rgb(100, 48, 3)
HSL	hsl(28, 94%, 20%)
HSV	hsv(28, 97%, 39%)
CMYK	cmyk(0%, 52%, 97%, 60.8%)
CIE-LAB	lab(26.25, 20.57, 35.45)
CIE-LCH	lch(26.25, 40.99, 59.88°)
OKLab	oklab(37.18% 0.0539 0.0735)
OKLCH	oklch(37.18% 0.091 53.7)
XYZ	xyz(6.3296, 4.8306, 0.6852)
Luminance	0.0483 (WCAG relative)
Temperature	warm
Family	orange

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#643003 #033764

analogous

#640306 #643003 #646003

triadic

#643003 #036430 #300364

tetradic

#643003 #066403 #033764 #600364

square

#643003 #066403 #033764 #600364

split-complementary

#643003 #036460 #030664

monochromatic

#1E0E01 #291301 #643003 #9F4D05 #DB6907

Accessibility & contrast

On white

10.68

#643003 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.97

#643003 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643003

10.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643003	#FFFFFF	#000000	##FFFFFF
##643003	1.00	10.68	1.97	10.68
#FFFFFF	10.68	1.00	21.00	1.00
#000000	1.97	21.00	1.00	21.00
##FFFFFF	10.68	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3F3700

Deuteranopia (green-blind)

#4C4302

Tritanopia (blue-blind)

#6F2428

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #643003;
/* rgb */ color: rgb(100, 48, 3);
/* oklch */ color: oklch(37.2% 0.091 53.7);

Tailwind

colors: {
  custom: {
    50: '#96694a',
    500: '#643003',
    950: '#000000',
  },
}

SCSS

$custom: #643003;
$custom-light: #96694a;
$custom-dark: #000000;

JSON

{
  "hex": "#643003",
  "rgb": {
    "r": 100,
    "g": 48,
    "b": 3
  },
  "hsl": {
    "h": 27.835,
    "s": 94.175,
    "l": 20.196
  },
  "oklch": {
    "l": 0.37183,
    "c": 0.0911,
    "h": 53.7
  },
  "luminance": 0.0483
}

Semantic roles & 50–950 ramp

primary

#643003

secondary

#2166A2

accent

#9CFF29

background

#F9F6F4

surface

#F2EBE7

border

#CCC6C3

text

#0F0601

muted

#7E7A77

Preview Lab

Preview with #643003

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

Preview Lab → · Contrast checker → · Palette generator →