#B5633B Color

#B5633B is rgb(181, 99, 59) in RGB, hsl(20, 51%, 47%) in HSL, and about cmyk(0%, 45%, 67%, 29%) in CMYK. It has no registered color name of its own — the closest is Brown (Crayola) (#AF593E), clearly related but distinguishable side by side at ΔE 6.74. Black text is the more readable choice on this background.

#B5633B

HEX#B5633B

RGBrgb(181, 99, 59)

HSLhsl(20, 51%, 47%)

HSVhsv(20, 67%, 71%)

CMYKcmyk(0%, 45%, 67%, 29%)

OKLCHoklch(58.7% 0.119 45.5)

LABlab(51.26% 31.37 37.52)

LCHlch(51.26% 48.91 50.10)

What #B5633B 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 #B5633B, ordered by CIE76 distance in CIELAB. Anything under about ΔE 2 is a difference most people cannot see.

Brown (Crayola)#AF593EΔE 6.74 Sienna#A0522DΔE 7.09 Copper Red#CB6D51ΔE 8.67 Brown Sugar#AF6E4DΔE 10.93 Copper#B87333ΔE 11.85 Metallic Bronze#A97142ΔE 12.46

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

#B5633B Channel Values

How #B5633B breaks down in each color model. Hue is measured in degrees around the color wheel; saturation, lightness, and the CMYK inks are percentages.

Model	Channels	Notes
RGB	R 181 · G 99 · B 59	8-bit channels as sent to the display
HSL	H 20° · S 51% · L 47%	Easiest model for building lighter and darker variants
HSV	H 20° · S 67% · V 71%	Matches the picker in most design tools
CMYK	C 0% · M 45% · Y 67% · K 29%	Approximate ink mix; confirm with an ICC profile before printing
Luminance	4.36:1 vs white · 4.81:1 vs black	WCAG 2.2 relative-luminance contrast ratios

Text Contrast & Accessibility

WCAG 2.2 contrast ratios for text on a #B5633B 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.

Fails AAWhite text4.36:1AA normal AA large AAA normal

TextBlack text4.81:1AA normal AA large AAA normal

Need a specific ratio against another background? Open #B5633B in the contrast checker.

Colors That Go With #B5633B

Pairings derived from color-wheel relationships. The complementary color sits opposite #B5633B; 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 #B5633B

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 #B5633B.

How #B5633B 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#B5633B

Protanopia#76763A

Protanomaly#946F3A

Deuteranopia#858534

Deuteranomaly#9B7937

Tritanopia#B75F5F

Tritanomaly#B66153

Achromatopsia#797979

Test a full palette in the color blindness simulator.

Using #B5633B in Code

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

CSS custom property--color-b5633b: #B5633B;

CSS backgroundbackground-color: #B5633B;

Tailwind configcolors: { 'color-b5633b': '#B5633B' }

SwiftUIColor(red: 0.710, green: 0.388, blue: 0.231)

Android XML<color name="color_b5633b">#B5633B</color>

SVG fillfill="#B5633B"

More Orange Colors

#B5633B sits in the orange family. These are its neighbours across that family's full range, each with its own breakdown.

8b7d6b fff9f5 967969 fff9f0 987456 fff8f0 987654 fff8eb 9b7653 fff7ed 9c8b6e fff7eb c8ad7f dba875 e3dac9 eba675 f1ddcf f8dcd3 fcf5ee ff681f ff9933 ffb83d ffd68a ffe7d1

#B5633B Frequently Asked Questions

What color is #B5633B?

#B5633B is a mid-tone orange — rgb(181, 99, 59) in RGB and hsl(20, 51%, 47%) in HSL. It carries no registered color name of its own; the closest named color is Brown (Crayola) (#AF593E), which is clearly related but distinguishable side by side at a CIE76 distance of 6.74.

What is the RGB value of #B5633B?

#B5633B is rgb(181, 99, 59) — red 181, green 99, and blue 59 on the 0-255 scale.

What is the CMYK value of #B5633B?

#B5633B converts to approximately cmyk(0%, 45%, 67%, 29%). CMYK output is a mathematical approximation for planning; confirm production print colors with your printer and ICC profile.

Should text on #B5633B be black or white?

Black text is the more readable choice. #B5633B scores 4.36:1 against white and 4.81:1 against black, and WCAG 2.2 asks for at least 4.5:1 for normal body text.

Can I write #B5633B as a CSS color keyword?

No. #B5633B 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 7.09, which is clearly related but distinguishable side by side.

Open #B5633B in a Tool

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