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#A3643E Color

#A3643E is rgb(163, 100, 62) in RGB, hsl(23, 45%, 44%) in HSL, and about cmyk(0%, 39%, 62%, 36%) in CMYK. It has no registered color name of its own — the closest is Brown Sugar (#AF6E4D), clearly related but distinguishable side by side at ΔE 5.09. White text is the more readable choice on this background.

#A3643E
HEX#A3643E
RGBrgb(163, 100, 62)
HSLhsl(23, 45%, 44%)
HSVhsv(23, 62%, 64%)
CMYKcmyk(0%, 39%, 62%, 36%)
OKLCHoklch(56.5% 0.097 50.8)
LABlab(48.98% 23.43 32.51)
LCHlch(48.98% 40.07 54.22)

What #A3643E Is Called

Most hex codes have no name: there are 16.7 million of them and a few thousand registered names. These are the named colors nearest to #A3643E, ordered by CIE76 distance in CIELAB. Anything under about ΔE 2 is a difference most people cannot see.

Browse the full index of named colors A-Z or every brown in the library.

#A3643E Channel Values

How #A3643E breaks down in each color model. Hue is measured in degrees around the color wheel; saturation, lightness, and the CMYK inks are percentages.

ModelChannelsNotes
RGBR 163 · G 100 · B 628-bit channels as sent to the display
HSLH 23° · S 45% · L 44%Easiest model for building lighter and darker variants
HSVH 23° · S 62% · V 64%Matches the picker in most design tools
CMYKC 0% · M 39% · Y 62% · K 36%Approximate ink mix; confirm with an ICC profile before printing
Luminance4.72:1 vs white · 4.45:1 vs blackWCAG 2.2 relative-luminance contrast ratios

Text Contrast & Accessibility

WCAG 2.2 contrast ratios for text on a #A3643E background. AA requires 4.5:1 for normal text and 3:1 for large text; AAA requires 7:1. Contrast is one check, not a full accessibility review.

TextWhite text4.72:1AA normal AA large AAA normal
Fails AABlack text4.45:1AA normal AA large AAA normal

Need a specific ratio against another background? Open #A3643E in the contrast checker.

Colors That Go With #A3643E

Pairings derived from color-wheel relationships. The complementary color sits opposite #A3643E; analogous colors sit beside it; triadic and split-complementary sets spread evenly around the wheel. Select any swatch for its own breakdown.

Base
Complementary
Analogous
Analogous
Triadic
Triadic
Split comp.
Split comp.

Tints & Shades of #A3643E

Lighter tints and darker shades built by moving the lightness channel while holding hue and saturation, which is what you want for hover states, backgrounds, and text variants.

Tints

Shades

Want a full 50-950 ramp with semantic roles? Generate design tokens from #A3643E.

How #A3643E Looks with Color Vision Deficiency

Simulated with the Viénot, Brettel & Mollon LMS projection model. Anomalous types are rendered as partial versions of the matching dichromacy, which is an approximation rather than a per-person clinical model.

Typical#A3643E
Protanopia#72723D
Protanomaly#886D3E
Deuteranopia#7D7D39
Deuteranomaly#8E743B
Tritanopia#A56060
Tritanomaly#A46254
Achromatopsia#737373

Test a full palette in the color blindness simulator.

Using #A3643E in Code

Copy-ready declarations for the places this color usually ends up.

CSS custom property--color-a3643e: #A3643E;
CSS backgroundbackground-color: #A3643E;
Tailwind configcolors: { 'color-a3643e': '#A3643E' }
SwiftUIColor(red: 0.639, green: 0.392, blue: 0.243)
Android XML<color name="color_a3643e">#A3643E</color>
SVG fillfill="#A3643E"

More Brown Colors

#A3643E sits in the brown family. These are its neighbours across that family's full range, each with its own breakdown.

#A3643E Frequently Asked Questions

What color is #A3643E?

#A3643E is a mid-tone brown — rgb(163, 100, 62) in RGB and hsl(23, 45%, 44%) in HSL. It carries no registered color name of its own; the closest named color is Brown Sugar (#AF6E4D), which is clearly related but distinguishable side by side at a CIE76 distance of 5.09.

What is the RGB value of #A3643E?

#A3643E is rgb(163, 100, 62) — red 163, green 100, and blue 62 on the 0-255 scale.

What is the CMYK value of #A3643E?

#A3643E converts to approximately cmyk(0%, 39%, 62%, 36%). CMYK output is a mathematical approximation for planning; confirm production print colors with your printer and ICC profile.

Should text on #A3643E be black or white?

White text is the more readable choice. #A3643E scores 4.72:1 against white and 4.45:1 against black, and WCAG 2.2 asks for at least 4.5:1 for normal body text.

Can I write #A3643E as a CSS color keyword?

No. #A3643E is not one of the CSS color keywords, so it has to be written as a hex, rgb() or hsl() value. The closest keyword is sienna (#A0522D) at a CIE76 distance of 9.64, which is clearly related but distinguishable side by side.

Open #A3643E in a Tool

Keep exploring: every brown in the color library, the guide to shades of brown, or the full color library.