HEX
#00FFFFPrimary tokenCSS Named Color Reference
Cyan Color Code
Cyan·#00FFFF
Cyan FamilyCoolMid toneHigh saturationoklch(90.5% 0.155 195)
RGB
rgb(0, 255, 255)Screen valuesHSL
hsl(180 100% 50%)Hue and lightnessCMYK
100, 0, 0, 0Print handoffLAB
91, -48, -14Perceptual referenceOKLCH
oklch(90.5% 0.155 195)Modern perceptualCyan is the CSS named color `#00FFFF`. If you searched `cyan rgb`, `cyan hex code`, or `#00FFFF`, this is the direct answer. In CSS and HTML, Cyan and Aqua share the same numeric value, which makes this page the exact reference when you need the official web color name and its formats.
Best text colorDark text
Body text contrast13.68:1
Best UseExact CSS named color lookup, electric highlights, and `#00FFFF` verification
Tonal Scale
100#D1FFFF
300#8AFFFF
500#2EFFFF
600#00FFFF
800#00B8B8
Contrast Checks
White text on this color
Buttons, badges, and filled actions.
1.25:1Needs more separation
Dark text on this color
Large headings and selective UI.
13.68:1AAA-level contrast
This color on light surface
Links, borders, and icons on light UI.
1.19:1Needs more separation
Best text colorDark textContrast 13.68:1
Professional Reference
OKLCHoklch(90.5% 0.155 195)
Relative Luminance0.7874
Source TypeCSS Named Color
Classification
Cyan FamilyCoolMid toneHigh saturation
Source Context
Source Type
CSS Named Color
System
CSS
Aliases
#00FFFF00FFFFAquaCSS Cyan
Closest Matches
Material Cyan A200Material Cyan A100Turquoise
Color Notes
- Cyan and Aqua are two names for the same CSS value: `#00FFFF`.
- Searches such as `cyan rgb` or `cyan html color` are usually looking for the exact named-color mapping, not a broader palette.
- It is brighter and more electric than sky-blue families, so use it carefully for text-heavy UI.
Accessibility Matrix
White text on this color
White text placed on the current color.
1.25:1Needs more separation
Dark text on this color
Dark text or headings on the current color.
13.68:1AAA
This color on light surface
Use this color for links, strokes, or icons on light UI.
1.19:1Needs more separation
This color on dark surface
Use this color inside dark shells for strokes, tags, or icons.
13.68:1AAA
Best text colorDark textContrast 13.68:1 · AAA
Where It Works
- Use it when you need the exact `#00FFFF` reference for CSS, HTML, chart accents, or technical callouts.
- Because Cyan is extremely bright, keep it in focused roles instead of long-reading backgrounds or dense text areas.
- If readability matters, verify whether dark text performs better before using it in UI.
Reference Notes
Last Updated
2026-06-25
Source Library
CSS Standard Colors
Methodology
Verified source values + site guidance
Color Notes
Cyan is sourced from the published CSS Standard Colors library and retained here as a searchable reference swatch for product and interface reference work.
Hue Family
Clean cyan and teal hues for product UIs.
Source Collections
CSS Named Colors
Related Colors
Palette Starting Points
Implementation Snippets
:root {
--color-cyan: #00FFFF;
--color-cyan-rgb: 0 255 255;
}class="bg-[#00FFFF] text-white"
class="hover:bg-[#00B8B8] ring-1 ring-[#00FFFF]"{
"cyan": "#00FFFF",
"cyanRgb": [0, 255, 255],
"cyanHsl": [180, 100, 50]
}