#643F15#643F15

#643F15 is a dark, moderate orange. Relative luminance 0.063; OKLCH L 40.3% C 0.076 H 65.6°. Best body text is #FFFFFF at 9.28:1 contrast (WCAG AA passes).

Color values

HEX	#643F15
RGB	rgb(100, 63, 21)
HSL	hsl(32, 65%, 24%)
HSV	hsv(32, 79%, 39%)
CMYK	cmyk(0%, 37%, 79%, 60.8%)
CIE-LAB	lab(30.20, 12.10, 31.17)
CIE-LCH	lch(30.20, 33.44, 68.79°)
OKLab	oklab(40.28% 0.0314 0.0691)
OKLCH	oklch(40.28% 0.076 65.6)
XYZ	xyz(7.1689, 6.3192, 1.5515)
Luminance	0.0632 (WCAG relative)
Temperature	warm
Family	orange

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#643F15 #153A64

analogous

#641815 #643F15 #616415

triadic

#643F15 #15643F #3F1564

tetradic

#643F15 #156418 #153A64 #641561

square

#643F15 #156418 #153A64 #641561

split-complementary

#643F15 #156164 #181564

monochromatic

#191005 #311F0A #643F15 #975F20 #C97F2A

Accessibility & contrast

On white

9.28

#643F15 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.26

#643F15 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643F15

9.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643F15	#FFFFFF	#000000	##FFFFFF
##643F15	1.00	9.28	2.26	9.28
#FFFFFF	9.28	1.00	21.00	1.00
#000000	2.26	21.00	1.00	21.00
##FFFFFF	9.28	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4B4210

Deuteranopia (green-blind)

#544B16

Tritanopia (blue-blind)

#6E3636

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #643f15;
/* rgb */ color: rgb(100, 63, 21);
/* oklch */ color: oklch(40.3% 0.076 65.6);

Tailwind

colors: {
  custom: {
    50: '#947455',
    500: '#643f15',
    950: '#000000',
  },
}

SCSS

$custom: #643f15;
$custom-light: #947455;
$custom-dark: #000000;

JSON

{
  "hex": "#643f15",
  "rgb": {
    "r": 100,
    "g": 63,
    "b": 21
  },
  "hsl": {
    "h": 31.899,
    "s": 65.289,
    "l": 23.725
  },
  "oklch": {
    "l": 0.40276,
    "c": 0.07594,
    "h": 65.6
  },
  "luminance": 0.06318
}

Semantic roles & 50–950 ramp

primary

#643F15

secondary

#3A679B

accent

#8FE840

background

#F9F7F5

surface

#F2EDE9

border

#CCC8C5

text

#0E0803

muted

#7E7B78

Preview Lab

Preview with #643F15

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

Preview Lab → · Contrast checker → · Palette generator →