Deep Sky Blue (CSS)

Deep Sky Blue (CSS) is a medium, saturated blue color with the hex code #00BFFF (hue 195°, saturation 100%, lightness 50%). It is also the CSS named color deepskyblue.

#00BFFF

	Name	HEX	RGB	HSL	CMYK	OKLCH
	Deep Sky Blue (CSS)	`#00BFFF`	0, 191, 255	195°, 100%, 50%	100, 25, 0, 0	75.5% 0.153 232

Contrast with white text 2.12:1, with black text 9.90:1 — use black text on Deep Sky Blue (CSS).

deepskyblue is one of the 148 named colors in CSS, with exactly this value, so color: deepskyblue works in any browser without a hex code.

Huebook · Maintained by Iris Marlow (pen name) · automated checks · Data: color-name-list (MIT) for names; CSS Color Module Level 4 (W3C) for CSS named colors · Updated Oct 19, 2026 · How the checks work

Tints and shades

#CCF2FF

#80DFFF

#33CCFF

#00ACE6

#007399

#00394D

Colors that go with Deep Sky Blue (CSS)

Six color schemes built on Deep Sky Blue (CSS) with classic harmony rules. The complementary scheme pairs it with Ultimate Orange (#FF4200), the color opposite it on the color wheel.

Nearest CSS named colors

Light Sky Blue (lightskyblue): Light Sky Blue (#87CEFA) is lighter than Deep Sky Blue (CSS) (relative luminance 0.562 vs 0.445) and less saturated, with its hue 8° away.
Dark Turquoise (darkturquoise): Dark Turquoise (#00CED1) is lighter than Deep Sky Blue (CSS) (relative luminance 0.487 vs 0.445) and equally saturated, with its hue 14° away.
Sky Blue (skyblue): Sky Blue (#87CEEB) is lighter than Deep Sky Blue (CSS) (relative luminance 0.553 vs 0.445) and less saturated, with the same hue.
Medium Turquoise (mediumturquoise): Medium Turquoise (#48D1CC) is lighter than Deep Sky Blue (CSS) (relative luminance 0.513 vs 0.445) and less saturated, with its hue 17° away.

Similar medium blue colors

Questions

What is the hex code for Deep Sky Blue (CSS)?

#00BFFF — RGB 0, 191, 255, HSL 195°, 100%, 50%.

Is Deep Sky Blue (CSS) a warm or cool color?

Cool — its hue sits at 195° on the color wheel.