Deep Sky Blue
Electric and vibrant high-energy blue
Deep Sky Blue is an electric, neon-bright shade that demands attention. Because of its extreme saturation, it functions best as a 10% accent color rather than a full background. It looks sharp paired with dark charcoal greys. The hex code for this blue is #00bfff. Since black text provides excellent 9.9:1 contrast, this color remains highly readable for UI elements like buttons or notification badges.
About Deep Sky Blue
Pool water at noon, glittering with sun
What does deep sky blue mean?
This shade often calls to mind clear tropical water, glacier ice, summer skies, and bright artificial light. Its high lightness and full saturation make it glow and spark, coming across as loud and energetic rather than reserved.
Where you see deep sky blue
- swimming pools
- glacier ice
- tropical fish
- neon signs
- eyeshadow
- phone cases
What it works for
Use it for buttons, sports gear, app highlights, and posters, anywhere a bright accent should grab attention fast.
What colors go with deep sky blue?
Hot Pink #ff028dBoth colors run at full saturation, so together they make a bold pop look.Tangerine #ff9300A warm orange against this cold blue creates strong contrast and a playful, retro mood.Charcoal #36454fThe dark gray base lets this bright blue read as a glowing light source.Mint #98ff98These two cool neighbors sit close in tone and keep a design fresh and light.Golden Yellow #ffdf00Yellow adds warmth and keeps all that cool brightness from feeling chilly.
Questions about Deep Sky Blue
What is the hex code for Deep Sky Blue?
Deep Sky Blue is #00bfff. In RGB that is rgb(0, 191, 255), in HSL hsl(195, 100%, 50%) and in CMYK 100%, 25%, 0%, 0%.
How should I use #00bfff Deep Sky Blue in my design?
Because #00bfff is highly saturated, use it as a 10% accent color rather than a background to avoid overwhelming the viewer. It works exceptionally well for call-to-action buttons or notification badges where you need high visual priority.
Is Deep Sky Blue readable on white or black?
Deep Sky Blue has a 2.12:1 contrast ratio on white and 9.89:1 on black. WCAG asks for 4.5:1 for body text and 3:1 for large text, so on white it is too faint for text and on black it works for body text. Try other pairs in the contrast checker.