#643C15#643C15

#643C15 is a dark, moderate orange. Relative luminance 0.060; OKLCH L 39.7% C 0.077 H 61.3°. Best body text is #FFFFFF at 9.55:1 contrast (WCAG AA passes).

Color values

HEX	#643C15
RGB	rgb(100, 60, 21)
HSL	hsl(30, 65%, 24%)
HSV	hsv(30, 79%, 39%)
CMYK	cmyk(0%, 40%, 79%, 60.8%)
CIE-LAB	lab(29.40, 13.96, 30.36)
CIE-LCH	lch(29.40, 33.41, 65.31°)
OKLab	oklab(39.66% 0.0369 0.0674)
OKLCH	oklch(39.66% 0.077 61.3)
XYZ	xyz(7.0073, 5.9959, 1.4976)
Luminance	0.0600 (WCAG relative)
Temperature	warm
Family	orange

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#643C15 #153D64

analogous

#641516 #643C15 #646315

triadic

#643C15 #15643C #3C1564

tetradic

#643C15 #166415 #153D64 #631564

square

#643C15 #166415 #153D64 #631564

split-complementary

#643C15 #156463 #151664

monochromatic

#190F05 #311E0A #643C15 #975A20 #C9792A

Accessibility & contrast

On white

9.55

#643C15 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.20

#643C15 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643C15

9.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643C15	#FFFFFF	#000000	##FFFFFF
##643C15	1.00	9.55	2.20	9.55
#FFFFFF	9.55	1.00	21.00	1.00
#000000	2.20	21.00	1.00	21.00
##FFFFFF	9.55	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#484010

Deuteranopia (green-blind)

#524915

Tritanopia (blue-blind)

#6E3334

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #643c15;
/* rgb */ color: rgb(100, 60, 21);
/* oklch */ color: oklch(39.7% 0.077 61.3);

Tailwind

colors: {
  custom: {
    50: '#947255',
    500: '#643c15',
    950: '#000000',
  },
}

SCSS

$custom: #643c15;
$custom-light: #947255;
$custom-dark: #000000;

JSON

{
  "hex": "#643c15",
  "rgb": {
    "r": 100,
    "g": 60,
    "b": 21
  },
  "hsl": {
    "h": 29.62,
    "s": 65.289,
    "l": 23.725
  },
  "oklch": {
    "l": 0.39655,
    "c": 0.07684,
    "h": 61.3
  },
  "luminance": 0.05995
}

Semantic roles & 50–950 ramp

primary

#643C15

secondary

#3A6B9B

accent

#95E840

background

#F9F6F5

surface

#F2ECE9

border

#CCC7C5

text

#0E0703

muted

#7E7A78

Preview Lab

Preview with #643C15

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

Preview Lab → · Contrast checker → · Palette generator →