#00FFFF
aqua
#00FFFF is the CSS named color "aqua", an exact match. In RGB it breaks down to red 0, green 255, and blue 255 out of 255 each. In HSL terms that's a hue of 180°, 100% saturation, and 50% lightness: a mid-tone — usable as an accent for buttons, links, and icons against either a light or dark background.
Every format
| HEX | #00ffff |
| RGB | rgb(0, 255, 255) |
| HSL | hsl(180° 100% 50%) |
| HSB | hsb(180° 100% 100%) |
| OKLCH | oklch(91% 0.155 195°) |
| OKLAB | oklab(91% -0.149 -0.039) |
| LCH | lch(91% 52.8 196°) |
| CMYK | cmyk(100% 0% 0% 0%) |
Shades (darker)
#00ffff · #00e6e7 · #00cecf · #00b7b8 · #009fa1
Tints (lighter)
#00ffff · #15ffff · #21ffff · #2affff · #32ffff
Shades mix #00FFFF toward black in even steps, useful for hover and pressed states in a UI; tints mix it toward white, useful for subtle backgrounds and disabled states that still read as the same color family.
On white: 1.25:1 — fails
On black: 16.75:1 — AAA
Frequently asked
- What is #00FFFF in RGB?
- #00FFFF is rgb(0, 255, 255) — red 0, green 255, blue 255 out of 255 each.
- Does #00FFFF pass WCAG contrast on a white background?
- It has a contrast ratio of 1.25:1 against white, which fails for normal text.
- What's a good background color to pair with #00FFFF?
- Black text or a black background gives better contrast (16.75:1) than white (1.25:1).