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Deep sky blue

#00BFFF

Deep sky blue is the hex color #00BFFF, with RGB values 0, 191, 255. It is a CSS color keyword, so browsers render it from the name alone, and its value is fixed by the CSS Color Module.

BlueCSS keyword

Quick colors, then fill the screen

Or a gradient

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#00BFFFrgb(0, 191, 255) · hsl(195, 100%, 50%)

Deep sky blue color codes

Every value for #00BFFF, ready to paste. Click any code to copy it.

Channel values for #00BFFF in each number base
ChannelDecimalShareHexOctalBinary
Red00%00000000000
Green19174.9%BF27710111111
Blue255100%FF37711111111

The nearest web-safe color is #00CCFF, from the 216-color palette browsers agreed on before displays could be trusted with more.

About deep sky blue

Fully saturated at a hue of 195 degrees, which is the same hue as lightblue with everything turned up. Bright enough that black text on it clears 9.9 to 1, so it works as a panel behind dark type while still reading as vivid.

Family
Blue, 13th lightest of 23 blues
Web-safe
is the nearest

Shades, tints and tones

Every step is generated from #00BFFF. Click a swatch to copy its hex.

Shades of deep sky blue

A shade is the base color with black mixed in. Shades read as deeper and more dramatic, and they are what you reach for when a color needs to recede or carry weight.

Tints of deep sky blue

A tint is the base color with white mixed in. Tints turn pastel as they lighten, which makes them useful for backgrounds and for anything that has to sit behind text.

Tones of deep sky blue

A tone is the base color with gray mixed in. Tones lose the shout without losing the hue, and they are usually what separates a considered palette from a loud one.

The deep sky blue scale

The same color as the 50 to 950 ladder every CSS framework uses, with #00BFFF at 500. Click a step to copy its hex, or take the whole scale as variables for a design system.

Color schemes built on deep sky blue

Harmonies are positions on the color wheel rather than matters of taste, which is why they keep working across very different designs.

Complementary

Two colors from opposite sides of the wheel. They make each other look more vivid, which is why the pairing is used for anything that needs to stand out.

Analogous

Three neighbors on the wheel. Nothing competes, so the result reads calm and settled, closer to how color behaves in nature.

Split complementary

The base plus the two colors either side of its complement. It keeps most of the contrast while being much easier to balance.

Triadic

Three colors spaced evenly around the wheel. Strong and lively, and usually best with one dominant color and two accents.

Tetradic

Two complementary pairs, forming a rectangle on the wheel. The richest scheme available, and the hardest to keep from shouting.

Monochromatic

One hue at different lightness levels. Effortlessly cohesive, and the safest way to build a palette around a brand color.

Colors close to #00BFFF

Near neighbors, for when this color is almost right. Each one shifts hue, saturation or lightness by a small step.

Deep sky blue color palettes

Five-color palettes built around #00BFFF, each following a different scheme. Click any swatch to copy it, or open the generator to build your own.

Analogous

Complementary

Triadic

Monochromatic

Open the palette generator to lock the colors you like and regenerate the rest.

Contrast and readability

Whether deep sky blue works as text, and what to put on top of it when it is the background. Ratios follow WCAG 2.1, where 4.5 is the bar for body text and 3 for large text.

Deep sky blue text on white background

2.12:1 · Poor

Large text at 24 pixels

Body text at 16 pixels. A flat field of color removes every variable, which is what makes it useful for judging a display.

  • Body AA
  • Body AAA
  • Large AA
  • Large AAA

Deep sky blue text on black background

9.9:1 · Excellent

Large text at 24 pixels

Body text at 16 pixels. A flat field of color removes every variable, which is what makes it useful for judging a display.

  • Body AA
  • Body AAA
  • Large AA
  • Large AAA

Used the other way round, #00BFFF as a background takes #000000 text. That is the higher-contrast of the two, and it is what the tool picks automatically for any chrome sitting on your color.

Deep sky blue reads better on a black background of the two. Contrast is a property of the pair, not of one color, so a color that fails here can still be perfectly usable against a different partner.

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The blue family

Deep sky blue sits in the blue family. Every named blue in the library, with deep sky blue first.

SwatchNameHexRGBHSL
Deep sky blue is a CSS keyword is the color on this page#00BFFF0, 191, 255195, 100%, 50%
Blue is a CSS keyword#0000FF0, 0, 255240, 100%, 50%
Navy is a CSS keyword#0000800, 0, 128240, 100%, 25%
Royal blue is a CSS keyword#4169E165, 105, 225225, 73%, 57%
Sky blue is a CSS keyword#87CEEB135, 206, 235197, 71%, 73%
Baby blue#89CFF0137, 207, 240199, 77%, 74%
Cobalt#0047AB0, 71, 171215, 100%, 34%
Indigo is a CSS keyword#4B008275, 0, 130275, 100%, 25%
Periwinkle#CCCCFF204, 204, 255240, 100%, 90%
Powder blue is a CSS keyword#B0E0E6176, 224, 230187, 52%, 80%
Steel blue is a CSS keyword#4682B470, 130, 180207, 44%, 49%
Midnight blue is a CSS keyword#19197025, 25, 112240, 64%, 27%
Denim#1560BD21, 96, 189213, 80%, 41%
Cerulean#2A52BE42, 82, 190224, 64%, 45%
Dodger blue is a CSS keyword#1E90FF30, 144, 255210, 100%, 56%
Prussian blue#0031530, 49, 83205, 100%, 16%
Dark blue is a CSS keyword#00008B0, 0, 139240, 100%, 27%
Light blue is a CSS keyword#ADD8E6173, 216, 230195, 53%, 79%
Cornflower blue is a CSS keyword#6495ED100, 149, 237219, 79%, 66%
Light sky blue is a CSS keyword#87CEFA135, 206, 250203, 92%, 75%
Slate blue is a CSS keyword#6A5ACD106, 90, 205248, 53%, 58%
Medium slate blue is a CSS keyword#7B68EE123, 104, 238249, 80%, 67%
Dark slate blue is a CSS keyword#483D8B72, 61, 139248, 39%, 39%