#643710#643710

#643710 is a dark, moderate orange. Relative luminance 0.055; OKLCH L 38.6% C 0.082 H 57.0°. Best body text is #FFFFFF at 10.02:1 contrast (WCAG AA passes).

Color values

HEX	#643710
RGB	rgb(100, 55, 16)
HSL	hsl(28, 72%, 23%)
HSV	hsv(28, 84%, 39%)
CMYK	cmyk(0%, 45%, 84%, 60.8%)
CIE-LAB	lab(28.06, 16.79, 31.53)
CIE-LCH	lch(28.06, 35.72, 61.96°)
OKLab	oklab(38.6% 0.0445 0.0686)
OKLCH	oklch(38.6% 0.082 57)
XYZ	xyz(6.7158, 5.4798, 1.1942)
Luminance	0.0548 (WCAG relative)
Temperature	warm
Family	orange

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#643710 #103D64

analogous

#641013 #643710 #646110

triadic

#643710 #106437 #371064

tetradic

#643710 #136410 #103D64 #611064

square

#643710 #136410 #103D64 #611064

split-complementary

#643710 #106461 #101364

monochromatic

#1A0F04 #2F1A08 #643710 #995418 #CE7121

Accessibility & contrast

On white

10.02

#643710 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.10

#643710 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643710

10.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643710	#FFFFFF	#000000	##FFFFFF
##643710	1.00	10.02	2.10	10.02
#FFFFFF	10.02	1.00	21.00	1.00
#000000	2.10	21.00	1.00	21.00
##FFFFFF	10.02	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#443C0A

Deuteranopia (green-blind)

#4F4610

Tritanopia (blue-blind)

#6E2D2F

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #643710;
/* rgb */ color: rgb(100, 55, 16);
/* oklch */ color: oklch(38.6% 0.082 57.0);

Tailwind

colors: {
  custom: {
    50: '#956e51',
    500: '#643710',
    950: '#000000',
  },
}

SCSS

$custom: #643710;
$custom-light: #956e51;
$custom-dark: #000000;

JSON

{
  "hex": "#643710",
  "rgb": {
    "r": 100,
    "g": 55,
    "b": 16
  },
  "hsl": {
    "h": 27.857,
    "s": 72.414,
    "l": 22.745
  },
  "oklch": {
    "l": 0.38604,
    "c": 0.08176,
    "h": 57
  },
  "luminance": 0.05479
}

Semantic roles & 50–950 ramp

primary

#643710

secondary

#336C9D

accent

#9AEF39

background

#F9F6F4

surface

#F2EBE7

border

#CCC6C3

text

#0E0702

muted

#7E7A78

Preview Lab

Preview with #643710

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

Preview Lab → · Contrast checker → · Palette generator →