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Sienna

Hex #A0522D, rgb(160 82 45). A brown CSS named color.

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Sienna color codes

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HEX
RGB
HSL
HSV
HWB
CMYK
OKLCH
OKLab
Lab
LCH
CSS keyword

About Sienna

Sienna is a medium moderately saturated brown with the hex code #A0522D. In RGB it is made of 160 red, 82 green and 45 blue; in HSL its hue is 19°, with 56% saturation and 40% lightness. Its perceptual lightness (OKLCH L) is 52.6%.

It is a CSS named color, so you can write "sienna" anywhere CSS accepts a color. Against white it has a contrast ratio of 5.62:1 and against black 3.74:1, so white text reads better on it and passes WCAG AA for normal text.

Tints, shades and tones

Sienna mixed step by step with white, black and middle gray (#808080).

Tints (with white)

Shades (with black)

Tones (with gray)

Sienna 50-950 scale

A Tailwind-style scale built in OKLCH; the original color sits on the step with the closest lightness.

Colors that go with Sienna

Color harmonies rotate the hue in OKLCH and keep the lightness and chroma. Each color links to its closest named color.

Complementary

Analogous

Triadic

Split complementary

Tetradic

Square

Monochromatic

Contrast and readability

WCAG 2 contrast of Sienna with white and black. The readable text color on Sienna is white.

Sienna textSmall text on white

On white5.62:1

  • AA pass
  • AA Large pass
  • AAA fail
  • UI 3:1 pass

APCA Lc 78

Sienna textSmall text on black

On black3.74:1

  • AA fail
  • AA Large pass
  • AAA fail
  • UI 3:1 pass

APCA Lc -24

White text on Sienna (#FFFFFF)

Test any pair in the contrast checker.

Color blindness preview

How Sienna appears with each type of color vision deficiency (simulated with the Machado model).

  • Protanopia#675D29
  • Deuteranopia#7A6E2C
  • Tritanopia#AF424A
  • Protanomaly#7A5C29
  • Deuteranomaly#83672B
  • Tritanomaly#A64C3C
  • Achromatopsia#676767

Colors similar to Sienna

The closest named colors by perceptual difference (OKLab).

Use Sienna in CSS and Tailwind

CSS
.sienna {
  color: sienna; /* #A0522D */
  background-color: rgb(160 82 45);
  border-color: oklch(52.6% 0.115 44.6);
}
Tailwind CSS
/* Tailwind CSS v4: bg-sienna-500, text-sienna-700... */
@theme {
  --color-sienna-50: #FFF9F6;
  --color-sienna-100: #FCEBE3;
  --color-sienna-200: #F7D6C9;
  --color-sienna-300: #F0B79E;
  --color-sienna-400: #E18D67;
  --color-sienna-500: #D47346;
  --color-sienna-600: #BE6237;
  --color-sienna-700: #A0522D;
  --color-sienna-800: #7E4124;
  --color-sienna-900: #65341D;
  --color-sienna-950: #290C01;
}

<!-- or the exact color, no config -->
<div class="bg-[#A0522D] text-[#FFFFFF]">…</div>