HEX
#00BFFFPrimary tokenCSS Named Color Reference
Deep Sky Blue Color Code
Deep Sky Blue·#00BFFF
Deep Sky Blue (deepskyblue) is the CSS named color for #00BFFF and rgb(0, 191, 255).
Blue FamilyCoolMid toneHigh saturationoklch(75.5% 0.153 232)
RGB
rgb(0, 191, 255)Screen valuesHSL
hsl(195 100% 50%)Hue and lightnessCMYK
100, 25, 0, 0Print handoffLAB
73, -18, -43Perceptual referenceOKLCH
oklch(75.5% 0.153 232)Modern perceptual00bfff and #00BFFF are two ways to write the same Deep Sky Blue HEX value. Unlike the lighter Sky Blue (#87CEEB), Deep Sky Blue sits closer to cyan. Use it for vivid callouts, charts, and interface highlights rather than large reading surfaces.
Best text colorDark text
Body text contrast8.08:1
Best UseVivid highlights, expressive banners, and bright data emphasis
Tonal Scale
100#D1F3FF
300#8AE2FF
500#2ECBFF
600#00BFFF
800#008AB8
Contrast Checks
White text on this color
Buttons, badges, and filled actions.
2.12:1Needs more separation
Dark text on this color
Large headings and selective UI.
8.08:1AAA-level contrast
This color on light surface
Links, borders, and icons on light UI.
2.02:1Needs more separation
Best text colorDark textContrast 8.08:1
Professional Reference
OKLCHoklch(75.5% 0.153 232)
Relative Luminance0.4448
Source TypeCSS Named Color
Classification
Blue FamilyCoolMid toneHigh saturation
Source Context
Source Type
CSS Named Color
System
CSS
Closest Matches
Tailwind Sky 400Material Light Blue A200Material Light Blue 400
Accessibility Matrix
White text on this color
White text placed on the current color.
2.12:1Needs more separation
Dark text on this color
Dark text or headings on the current color.
8.08:1AAA
This color on light surface
Use this color for links, strokes, or icons on light UI.
2.02:1Needs more separation
This color on dark surface
Use this color inside dark shells for strokes, tags, or icons.
8.08:1AAA
Best text colorDark textContrast 8.08:1 · AAA
Where It Works
- Hero accents, chart highlights, and vivid callouts.
- Expressive surface color, not foundation chrome.
- Pairs with white, ink-dark neutrals, and calmer blues.
Reference Notes
Last Updated
2026-10-15
Source Library
CSS Standard Colors
Methodology
Verified source values + site guidance
Color Notes
Deep Sky Blue 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
Trust-building blues for enterprise and SaaS.
Source Collections
CSS Named Colors
Related Colors
Palette Starting Points
Implementation Snippets
:root {
--color-deep-sky-blue: #00BFFF;
--color-deep-sky-blue-rgb: 0 191 255;
}class="bg-[#00BFFF] text-white"
class="hover:bg-[#008AB8] ring-1 ring-[#00BFFF]"{
"deepSkyBlue": "#00BFFF",
"deepSkyBlueRgb": [0, 191, 255],
"deepSkyBlueHsl": [195, 100, 50]
}