#643811#643811

#643811 is a dark, moderate orange. Relative luminance 0.056; OKLCH L 38.8% C 0.081 H 57.8°. Best body text is #FFFFFF at 9.93:1 contrast (WCAG AA passes).

Color values

HEX	#643811
RGB	rgb(100, 56, 17)
HSL	hsl(28, 71%, 23%)
HSV	hsv(28, 83%, 39%)
CMYK	cmyk(0%, 44%, 83%, 60.8%)
CIE-LAB	lab(28.32, 16.22, 31.30)
CIE-LCH	lch(28.32, 35.25, 62.60°)
OKLab	oklab(38.81% 0.043 0.0684)
OKLCH	oklch(38.81% 0.081 57.8)
XYZ	xyz(6.7715, 5.5789, 1.2504)
Luminance	0.0558 (WCAG relative)
Temperature	warm
Family	orange

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#643811 #113D64

analogous

#641113 #643811 #646111

triadic

#643811 #116438 #381164

tetradic

#643811 #136411 #113D64 #611164

square

#643811 #136411 #113D64 #611164

split-complementary

#643811 #116461 #111364

monochromatic

#1A0F04 #301B08 #643811 #98551A #CD7323

Accessibility & contrast

On white

9.93

#643811 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.12

#643811 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643811

9.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643811	#FFFFFF	#000000	##FFFFFF
##643811	1.00	9.93	2.12	9.93
#FFFFFF	9.93	1.00	21.00	1.00
#000000	2.12	21.00	1.00	21.00
##FFFFFF	9.93	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#453D0B

Deuteranopia (green-blind)

#504711

Tritanopia (blue-blind)

#6E2E30

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #643811;
/* rgb */ color: rgb(100, 56, 17);
/* oklch */ color: oklch(38.8% 0.081 57.8);

Tailwind

colors: {
  custom: {
    50: '#956f52',
    500: '#643811',
    950: '#000000',
  },
}

SCSS

$custom: #643811;
$custom-light: #956f52;
$custom-dark: #000000;

JSON

{
  "hex": "#643811",
  "rgb": {
    "r": 100,
    "g": 56,
    "b": 17
  },
  "hsl": {
    "h": 28.193,
    "s": 70.94,
    "l": 22.941
  },
  "oklch": {
    "l": 0.3881,
    "c": 0.08075,
    "h": 57.8
  },
  "luminance": 0.05578
}

Semantic roles & 50–950 ramp

primary

#643811

secondary

#356C9C

accent

#99EE3A

background

#F9F6F4

surface

#F2ECE7

border

#CCC7C3

text

#0E0702

muted

#7E7A78

Preview Lab

Preview with #643811

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

Preview Lab → · Contrast checker → · Palette generator →