CSS named color
DeepSkyBlue #00BFFF
DeepSkyBlue is a vivid cyan with the hex code #00BFFF, which converts to rgb(0, 191, 255). Open #00BFFF in the converter to tweak it.
DeepSkyBlue color values
| HEX | #00BFFF |
|---|---|
| HEX (shorthand) | — |
| RGB | rgb(0, 191, 255) |
| RGBA | rgba(0, 191, 255, 1) |
| 8-digit HEX | #00BFFFFF |
| HSL | hsl(195, 100%, 50%) |
| HSV / HSB | 195°, 100%, 100% |
| CMYK | 100%, 25%, 0%, 0% |
| RGB 0–1 | 0, 0.749, 1 |
| Decimal | 49151 |
| CSS keyword | deepskyblue |
How #00BFFF converts to RGB
Split the hex code into three pairs and read each pair as a base-16 number: 00 → 0, BF → 191, FF → 255. That gives rgb(0, 191, 255). The step-by-step guide explains the math.
Shades of DeepSkyBlue
Mixed toward black in 10% steps. Click a swatch to copy its hex.
Tints of DeepSkyBlue
Mixed toward white in 10% steps.
Color harmonies
Hue rotations of DeepSkyBlue on the HSL color wheel, keeping saturation and lightness fixed. The color harmony guide explains when each scheme works.
Complementary
Analogous
Split-complementary
Triadic
Tetradic (square)
Contrast and accessibility
| Text | Background | Ratio | WCAG 2.x |
|---|---|---|---|
| White | DeepSkyBlue | 2.12:1 | Fail |
| Black | DeepSkyBlue | 9.89:1 | AAA |
Use black text on a deepskyblue background. Test any other pair in the contrast checker; thresholds are explained in the WCAG contrast guide.
Use DeepSkyBlue in CSS
.element {
color: deepskyblue; /* keyword */
background-color: #00BFFF; /* hex */
border-color: rgb(0 191 255 / 50%); /* 50% transparent */
}
Need it semi-transparent? Append an alpha byte: #00BFFF80 is DeepSkyBlue at 50% opacity. See RGBA & transparency.
Similar named colors
FAQ
What is the HEX code for DeepSkyBlue?
The CSS named color deepskyblue is #00BFFF in hexadecimal. In CSS you can write color: deepskyblue; or color: #00BFFF; — both produce the same pixel.
What is DeepSkyBlue in RGB?
DeepSkyBlue is rgb(0, 191, 255): red 0, green 191, blue 255 on the 0–255 scale. As normalized 0–1 floats that is (0, 0.749, 1).
Is white or black text more readable on DeepSkyBlue?
Black text is more readable. White on #00BFFF has a contrast ratio of 2.12:1 (Fail), black on #00BFFF has 9.89:1 (AAA). WCAG AA needs 4.5:1 for normal text.