Deep Sky Blue

Hex #00BFFF, rgb(0 191 255). A cyan or teal CSS named color.

Deep Sky Blue#00BFFF

Deep Sky Blue color codes

Click any value to copy it.

HEX
RGB
HSL
HSV
HWB
CMYK
OKLCH
OKLab
Lab
LCH
CSS keyword

About Deep Sky Blue

Deep Sky Blue is a light saturated cyan-teal with the hex code #00BFFF. In RGB it is made of 0 red, 191 green and 255 blue; in HSL its hue is 195°, with 100% saturation and 50% lightness. Its perceptual lightness (OKLCH L) is 75.5%.

It is a CSS named color, so you can write "deepskyblue" anywhere CSS accepts a color. Against white it has a contrast ratio of 2.12:1 and against black 9.90:1, so black text reads better on it and passes WCAG AA for normal text.

Tints, shades and tones

Deep Sky Blue mixed step by step with white, black and middle gray (#808080).

Tints (with white)

Shades (with black)

Tones (with gray)

Deep Sky Blue 50-950 scale

A Tailwind-style scale built in OKLCH; the original color sits on the step with the closest lightness.

Colors that go with Deep Sky Blue

Color harmonies rotate the hue in OKLCH and keep the lightness and chroma. Each color links to its closest named color.

Complementary

Analogous

Triadic

Split complementary

Tetradic

Square

Monochromatic

Contrast and readability

WCAG 2 contrast of Deep Sky Blue with white and black. The readable text color on Deep Sky Blue is black.

Deep Sky Blue textSmall text on white

On white2.12:1

AA fail
AA Large fail
AAA fail
UI 3:1 fail

APCA Lc 41

Deep Sky Blue textSmall text on black

On black9.90:1

AA pass
AA Large pass
AAA pass
UI 3:1 pass

APCA Lc -61

Black text on Deep Sky Blue (#000000)

Test any pair in the contrast checker.

Color blindness preview

How Deep Sky Blue appears with each type of color vision deficiency (simulated with the Machado model).

Protanopia#9EBDFF
Deuteranopia#81A9FE
Tritanopia#00D0D5
Protanomaly#88BCFF
Deuteranomaly#75B0FF
Tritanomaly#00C6ED
Achromatopsia#B2B2B2

Colors similar to Deep Sky Blue

The closest named colors by perceptual difference (OKLab).

Use Deep Sky Blue in CSS and Tailwind

CSS

.deep-sky-blue {
  color: deepskyblue; /* #00BFFF */
  background-color: rgb(0 191 255);
  border-color: oklch(75.5% 0.153 231.6);
}

Tailwind CSS

/* Tailwind CSS v4: bg-deep-sky-blue-500, text-deep-sky-blue-700... */
@theme {
  --color-deep-sky-blue-50: #F5FBFF;
  --color-deep-sky-blue-100: #DFF4FF;
  --color-deep-sky-blue-200: #BFE9FF;
  --color-deep-sky-blue-300: #8AD8FF;
  --color-deep-sky-blue-400: #00BFFF;
  --color-deep-sky-blue-500: #00A3DA;
  --color-deep-sky-blue-600: #008BBB;
  --color-deep-sky-blue-700: #006F96;
  --color-deep-sky-blue-800: #005878;
  --color-deep-sky-blue-900: #004761;
  --color-deep-sky-blue-950: #001925;
}

<!-- or the exact color, no config -->
<div class="bg-[#00BFFF] text-[#000000]">…</div>