What is the hex code for Dark Cyan?

Dark Cyan is #008b8b. In CSS the keyword darkcyan, the hex #008b8b, rgb(0, 139, 139) and hsl(180, 100%, 27%) all paint the same color.

What is the opposite of Dark Cyan on the color wheel?

The opposite (complementary) color is #8b0000, 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 Dark Cyan for text?

Dark Cyan as text on white has a contrast ratio of 4.15:1, which fails WCAG AA for body text (4.5:1) but passes for large text and UI components (3:1). On black it is 5.07:1, which passes for body text. Use it as text on dark surfaces, or as a fill with dark text on top.

CSS color names · Greens

Dark Cyan color: hex #008b8b, RGB and HSL

Dark Cyan is the CSS keyword darkcyan, hex #008b8b, rgb(0, 139, 139), hsl(180, 100%, 27%). It is a dark, fully saturated cyan in the greens 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: darkcyan
Hex: #008b8b
RGB: rgb(0, 139, 139)
HSL: hsl(180, 100%, 27%)
On white: 4.15:1 — large text and UI only (3:1)
On black: 5.07:1 — passes AA for body text

.example {
  color: darkcyan;          /* keyword */
  color: #008b8b;          /* hex */
  color: rgb(0, 139, 139); /* rgb */
  color: hsl(180, 100%, 27%); /* hsl */
}

What colors go with dark cyan

Each match keeps dark cyan'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 dark cyan 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.

#8b0000 · darkred

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.

#8b0046

#8b4600

Triadic

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

#8b008b · darkmagenta

#8b8b00

Analogous

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

#008b46

#00468b

Tints and shades of dark cyan

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

Tints (lighter)

#00c9c9

#08ffff

#45ffff

#83ffff

#c1ffff

Shades (darker)

#007474

#005d5d

#004545

#002e2e

#001717

A UI color palette built from dark cyan

The eight semantic roles an interface actually uses, derived from dark cyan 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: #008b8b
secondary: #8b0046
accent: #8b4600
background: #fcfdfd
surface: #f3f7f7
text: #112222
muted: #568f8f
border: #dfecec

Dark mode

primary: #1affff
secondary: #ff1a8c
accent: #ff8c1a
background: #0e1b1b
surface: #152828
text: #f3f6f6
muted: #94b8b8
border: #274949

Open dark cyan in the palette generator

Using dark cyan in an interface

Green means success and 'on' — reserve one green for that job before you use another as a brand color. Sea green, forest green and teal are calm enough to lead a palette; the neon greens are for dark-mode accents and little else. Whichever role dark cyan 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 Dark Cyan?: Dark Cyan is #008b8b. In CSS the keyword darkcyan, the hex #008b8b, rgb(0, 139, 139) and hsl(180, 100%, 27%) all paint the same color.
What colors go with Dark Cyan?: Its complement is #8b0000, the split-complementary pair is #8b0046 and #8b4600, the triadic partners are #8b008b and #8b8b00, and the analogous neighbors are #008b46 and #00468b. In an interface, use Dark Cyan for most colored elements and one of these for a single accent, at roughly an 80/20 split.
What is the opposite of Dark Cyan on the color wheel?: The opposite (complementary) color is #8b0000, 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 Dark Cyan for text?: Dark Cyan as text on white has a contrast ratio of 4.15:1, which fails WCAG AA for body text (4.5:1) but passes for large text and UI components (3:1). On black it is 5.07:1, which passes for body text. Use it as text on dark surfaces, or as a fill with dark text on top.