What is the hex code for Sienna?

Sienna is #a0522d. In CSS the keyword sienna, the hex #a0522d, rgb(160, 82, 45) and hsl(19, 56%, 40%) all paint the same color.

What is the opposite of Sienna on the color wheel?

The opposite (complementary) color is #2d7ba0, the same saturation and lightness rotated 180° around the HSL wheel. Complementary pairs give the strongest contrast, which is why the complement should be used sparingly rather than at equal weight.

Can I use Sienna for text?

Sienna as text on white has a contrast ratio of 5.62:1, which passes WCAG AA for body text (4.5:1). On black it is 3.74:1, which fails for body text. It works as a text color on light surfaces.

CSS color names · Browns

Sienna color: hex #a0522d, RGB and HSL

Sienna is the CSS keyword sienna, hex #a0522d, rgb(160, 82, 45), hsl(19, 56%, 40%). It is a dark, vivid orange in the browns family. Below: the colors that go with it, its tints and shades, how it reads as text, and a complete interface palette built from it.

CSS name: sienna
Hex: #a0522d
RGB: rgb(160, 82, 45)
HSL: hsl(19, 56%, 40%)
On white: 5.62:1 — passes AA for body text
On black: 3.74:1 — large text and UI only (3:1)

.example {
  color: sienna;          /* keyword */
  color: #a0522d;          /* hex */
  color: rgb(160, 82, 45); /* rgb */
  color: hsl(19, 56%, 40%); /* hsl */
}

What colors go with sienna

Each match keeps sienna's saturation and lightness and rotates only the hue, so the relationship is the wheel's and nothing else. Any of these can be an accent beside sienna as the primary; the harmony guides explain which rule suits which interface.

Complementary

The opposite hue, 180° away — the strongest contrast, best kept to one accent per screen.

#2d7ba0

Split-complementary

The two neighbors of the complement, at 150° and 210° — most of the contrast with less tension, and two accents instead of one.

#2da08c

#2d41a0

Triadic

Two hues at 120° and 240° — three evenly spaced signals, the scheme charts and category colors want.

#2da052

#522da0

Analogous

The neighbors at −30° and +30° — calm and cohesive, with emphasis coming from weight and size rather than hue.

#a02d41

#a08b2d

Tints and shades of sienna

Tints add lightness toward white; shades remove it toward black. The hue and saturation stay fixed, so every step still reads as sienna — these are the hover, pressed, disabled and surface variants a single brand color needs.

Tints (lighter)

#c76639

#d28560

#dea388

#e9c2b0

#f4e0d7

Shades (darker)

#854426

#6b371e

#502917

#351b0f

#1b0e08

A UI color palette built from sienna

The eight semantic roles an interface actually uses, derived from sienna as the primary with the split-complementary rule: secondary and accent rotate around the wheel, and the five neutrals take the hue at lightness steps tuned for light and dark mode. This is the same derivation the palette generator runs — open it there to change the rule, drag the anchors, or export the set as CSS variables.

Light mode

primary: #a0522d
secondary: #2da08c
accent: #2d41a0
background: #fdfcfc
surface: #f7f4f3
text: #221611
muted: #8c6a59
border: #ebe3e0

Dark mode

primary: #cd754c
secondary: #4ccdb6
accent: #4c63cd
background: #1a120f
surface: #271c16
text: #f6f4f3
muted: #b5a097
border: #483228

Open sienna in the palette generator

Using sienna in an interface

Browns are muted oranges, and they behave like neutrals with warmth: the light ones make paper-like page backgrounds, the mid tones make borders and muted text, and the dark ones can carry body text. Brands that want to feel crafted or organic lean on this family. Whichever role sienna takes, define it once as a token rather than repeating the keyword: the semantic palette guide covers the eight roles, and the guides to complementary, triadic and the other color schemes explain how to weight the matches above.

What is the hex code for Sienna?: Sienna is #a0522d. In CSS the keyword sienna, the hex #a0522d, rgb(160, 82, 45) and hsl(19, 56%, 40%) all paint the same color.
What colors go with Sienna?: Its complement is #2d7ba0, the split-complementary pair is #2da08c and #2d41a0, the triadic partners are #2da052 and #522da0, and the analogous neighbors are #a02d41 and #a08b2d. In an interface, use Sienna for most colored elements and one of these for a single accent, at roughly an 80/20 split.
What is the opposite of Sienna on the color wheel?: The opposite (complementary) color is #2d7ba0, the same saturation and lightness rotated 180° around the HSL wheel. Complementary pairs give the strongest contrast, which is why the complement should be used sparingly rather than at equal weight.
Can I use Sienna for text?: Sienna as text on white has a contrast ratio of 5.62:1, which passes WCAG AA for body text (4.5:1). On black it is 3.74:1, which fails for body text. It works as a text color on light surfaces.