#663300 Color

#663300 is rgb(102, 51, 0) in RGB, hsl(30, 100%, 20%) in HSL, and about cmyk(0%, 50%, 100%, 60%) in CMYK. It has no registered color name of its own — the closest is Philippine Bronze (#6E3A07), very hard to tell apart at ΔE 3.03. White text is the more readable choice on this background.

#663300

HEX#663300

RGBrgb(102, 51, 0)

HSLhsl(30, 100%, 20%)

HSVhsv(30, 100%, 40%)

CMYKcmyk(0%, 50%, 100%, 60%)

OKLCHoklch(38% 0.092 56.8)

LABlab(27.65% 21.10 38.12)

LCHlch(27.65% 43.57 61.04)

What #663300 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 #663300, ordered by CIE76 distance in CIELAB. Anything under about ΔE 2 is a difference most people cannot see.

Philippine Bronze#6E3A07ΔE 3.03 Sepia#704214ΔE 7.11 Chocolate (Traditional)#7B3F00ΔE 9.18 Russet#80461BΔE 9.28 Violin Brown#674403ΔE 10.57 Seal Brown#59260BΔE 11.54

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

#663300 Channel Values

How #663300 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 102 · G 51 · B 0	8-bit channels as sent to the display
HSL	H 30° · S 100% · L 20%	Easiest model for building lighter and darker variants
HSV	H 30° · S 100% · V 40%	Matches the picker in most design tools
CMYK	C 0% · M 50% · Y 100% · K 60%	Approximate ink mix; confirm with an ICC profile before printing
Luminance	10.3:1 vs white · 2.04:1 vs black	WCAG 2.2 relative-luminance contrast ratios

Text Contrast & Accessibility

WCAG 2.2 contrast ratios for text on a #663300 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 text10.3:1AA normal AA large AAA normal

Fails AABlack text2.04:1AA normal AA large AAA normal

Need a specific ratio against another background? Open #663300 in the contrast checker.

Colors That Go With #663300

Pairings derived from color-wheel relationships. The complementary color sits opposite #663300; 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 #663300

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 #663300.

How #663300 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#663300

Protanopia#3F3F00

Protanomaly#513B00

Deuteranopia#494900

Deuteranomaly#564100

Tritanopia#682F2F

Tritanomaly#673124

Achromatopsia#404040

Test a full palette in the color blindness simulator.

Using #663300 in Code

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

CSS custom property--color-663300: #663300;

CSS backgroundbackground-color: #663300;

Tailwind configcolors: { 'color-663300': '#663300' }

SwiftUIColor(red: 0.400, green: 0.200, blue: 0.000)

Android XML<color name="color_663300">#663300</color>

SVG fillfill="#663300"

More Brown Colors

#663300 sits in the brown family. These are its neighbours across that family's full range, each with its own breakdown.

664228 654321 67330e 65401a 674403 652610 693507 644117 6a5445 635147 6b4423 63331c 733e0a 805823 8a5700 965a3e a0522d b85b19 c77e00 db3a00 24120a 3b3024 483c32 563c0d

#663300 Frequently Asked Questions

What color is #663300?

#663300 is a dark brown — rgb(102, 51, 0) in RGB and hsl(30, 100%, 20%) in HSL. It carries no registered color name of its own; the closest named color is Philippine Bronze (#6E3A07), which is very hard to tell apart at a CIE76 distance of 3.03.

What is the RGB value of #663300?

#663300 is rgb(102, 51, 0) — red 102, green 51, and blue 0 on the 0-255 scale.

What is the CMYK value of #663300?

#663300 converts to approximately cmyk(0%, 50%, 100%, 60%). CMYK output is a mathematical approximation for planning; confirm production print colors with your printer and ICC profile.

Should text on #663300 be black or white?

White text is the more readable choice. #663300 scores 10.3:1 against white and 2.04:1 against black, and WCAG 2.2 asks for at least 4.5:1 for normal body text.

Can I write #663300 as a CSS color keyword?

No. #663300 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 saddlebrown (#8B4513) at a CIE76 distance of 12.89, which is visibly different.

Open #663300 in a Tool

Hex to RGB Hex to HSL Hex to CMYK Hex to OKLCH Hex to Pantone Build a palette Make a gradient

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