#643F11#643F11

#643F11 is a dark, moderate orange. Relative luminance 0.063; OKLCH L 40.2% C 0.078 H 67.3°. Best body text is #FFFFFF at 9.29:1 contrast (WCAG AA passes).

Color values

HEX	#643F11
RGB	rgb(100, 63, 17)
HSL	hsl(33, 71%, 23%)
HSV	hsv(33, 83%, 39%)
CMYK	cmyk(0%, 37%, 83%, 60.8%)
CIE-LAB	lab(30.17, 11.91, 33.07)
CIE-LCH	lch(30.17, 35.15, 70.19°)
OKLab	oklab(40.24% 0.0302 0.0722)
OKLCH	oklch(40.24% 0.078 67.3)
XYZ	xyz(7.1348, 6.3055, 1.3715)
Luminance	0.0630 (WCAG relative)
Temperature	warm
Family	orange

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#643F11 #113664

analogous

#641511 #643F11 #5F6411

triadic

#643F11 #11643F #3F1164

tetradic

#643F11 #116415 #113664 #64115F

square

#643F11 #116415 #113664 #64115F

split-complementary

#643F11 #115F64 #151164

monochromatic

#1A1004 #301E08 #643F11 #98601A #CD8123

Accessibility & contrast

On white

9.29

#643F11 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.26

#643F11 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643F11

9.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643F11	#FFFFFF	#000000	##FFFFFF
##643F11	1.00	9.29	2.26	9.29
#FFFFFF	9.29	1.00	21.00	1.00
#000000	2.26	21.00	1.00	21.00
##FFFFFF	9.29	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4B420A

Deuteranopia (green-blind)

#544A12

Tritanopia (blue-blind)

#6E3636

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #643f11;
/* rgb */ color: rgb(100, 63, 17);
/* oklch */ color: oklch(40.2% 0.078 67.3);

Tailwind

colors: {
  custom: {
    50: '#947453',
    500: '#643f11',
    950: '#000000',
  },
}

SCSS

$custom: #643f11;
$custom-light: #947453;
$custom-dark: #000000;

JSON

{
  "hex": "#643f11",
  "rgb": {
    "r": 100,
    "g": 63,
    "b": 17
  },
  "hsl": {
    "h": 33.253,
    "s": 70.94,
    "l": 22.941
  },
  "oklch": {
    "l": 0.4024,
    "c": 0.07824,
    "h": 67.3
  },
  "luminance": 0.06305
}

Semantic roles & 50–950 ramp

primary

#643F11

secondary

#35639C

accent

#8AEE3A

background

#F9F7F4

surface

#F2EDE7

border

#CCC8C3

text

#0E0802

muted

#7E7B78

Preview Lab

Preview with #643F11

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

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