#511515 Color

#511515 is rgb(81, 21, 21) in RGB, hsl(0, 59%, 20%) in HSL, and about cmyk(0%, 74%, 74%, 68%) in CMYK. It has no registered color name of its own — the closest is Philippine Brown (#5D1916), clearly related but distinguishable side by side at ΔE 5.76. White text is the more readable choice on this background.

#511515

HEX#511515

RGBrgb(81, 21, 21)

HSLhsl(0, 59%, 20%)

HSVhsv(0, 74%, 32%)

CMYKcmyk(0%, 74%, 74%, 68%)

OKLCHoklch(29.7% 0.09 24.4)

LABlab(17.52% 28.35 16.57)

LCHlch(17.52% 32.84 30.30)

What #511515 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 #511515, ordered by CIE76 distance in CIELAB. Anything under about ΔE 2 is a difference most people cannot see.

Philippine Brown#5D1916ΔE 5.76 Sangria#5E1916ΔE 6.27 Oxblood#4A0000ΔE 7.62 Black Bean#3D0C02ΔE 7.73 Dark Sienna#3C1414ΔE 11.29 Liver (Organ)#6C2E1FΔE 12.4

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

#511515 Channel Values

How #511515 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 81 · G 21 · B 21	8-bit channels as sent to the display
HSL	H 0° · S 59% · L 20%	Easiest model for building lighter and darker variants
HSV	H 0° · S 74% · V 32%	Matches the picker in most design tools
CMYK	C 0% · M 74% · Y 74% · K 68%	Approximate ink mix; confirm with an ICC profile before printing
Luminance	14.31:1 vs white · 1.47:1 vs black	WCAG 2.2 relative-luminance contrast ratios

Text Contrast & Accessibility

WCAG 2.2 contrast ratios for text on a #511515 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 text14.31:1AA normal AA large AAA normal

Fails AABlack text1.47:1AA normal AA large AAA normal

Need a specific ratio against another background? Open #511515 in the contrast checker.

Colors That Go With #511515

Pairings derived from color-wheel relationships. The complementary color sits opposite #511515; 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 #511515

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 #511515.

How #511515 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#511515

Protanopia#272714

Protanomaly#3C2115

Deuteranopia#323211

Deuteranomaly#412912

Tritanopia#511515

Tritanomaly#511515

Achromatopsia#2A2A2A

Test a full palette in the color blindness simulator.

Using #511515 in Code

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

CSS custom property--color-511515: #511515;

CSS backgroundbackground-color: #511515;

Tailwind configcolors: { 'color-511515': '#511515' }

SwiftUIColor(red: 0.318, green: 0.082, blue: 0.082)

Android XML<color name="color_511515">#511515</color>

SVG fillfill="#511515"

More Red Colors

#511515 sits in the red family. These are its neighbours across that family's full range, each with its own breakdown.

520000 4e0707 52000c 4b0714 52000e 4a1717 523b35 4a0000 553434 470012 561010 47000c 722f37 940019 a83434 c08081 ce1127 e32636 ef4e6e fad6d6 ff1f1f ff6666 ffc0cb fffafa

#511515 Frequently Asked Questions

What color is #511515?

#511515 is a dark red — rgb(81, 21, 21) in RGB and hsl(0, 59%, 20%) in HSL. It carries no registered color name of its own; the closest named color is Philippine Brown (#5D1916), which is clearly related but distinguishable side by side at a CIE76 distance of 5.76.

What is the RGB value of #511515?

#511515 is rgb(81, 21, 21) — red 81, green 21, and blue 21 on the 0-255 scale.

What is the CMYK value of #511515?

#511515 converts to approximately cmyk(0%, 74%, 74%, 68%). CMYK output is a mathematical approximation for planning; confirm production print colors with your printer and ICC profile.

Should text on #511515 be black or white?

White text is the more readable choice. #511515 scores 14.31:1 against white and 1.47:1 against black, and WCAG 2.2 asks for at least 4.5:1 for normal body text.

Can I write #511515 as a CSS color keyword?

No. #511515 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 maroon (#800000) at a CIE76 distance of 31.66, which is a different colour altogether.

Open #511515 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 red in the color library, the guide to shades of red, or the full color library.