Sky Blue (639DE1) — Shades, Harmonies, Palettes, CSS Code

"Sky Blue"

Blue · Winter

🧠 Psychology

Color of trust and stability. Evokes professionalism, security and serenity.

✨ Uses

Finance, banking, enterprise, software, social networks.

Tip

Sky Blue pairs ideally with #1C1B18 (dark text) and a neutral background for a modern, readable result.

Values

HEX #639DE1

RGB rgb(99, 157, 225)

HSL hsl(212°, 68%, 64%)

CMYK C:56% M:30% Y:0% K:12%

Luminance 0.3274

WCAG Accessibility

On white 2.82:1

Aa — #639DE1

Secondary text

✗ AA ✗ AAA ✗ AA Large

On black 7.44:1

Aa — #639DE1

Secondary text

✓ AA ✓ AAA ✓ AA Large

50 100 200 300 400 500 600 700 800 900 950

All harmonies

Complementary

#639DE1 #E2A765

Analogous

#65DDE2 #639DE1 #6965E2

Triadic

#639DE1 #E2659F #9FE265

Split-comp.

#639DE1 #E26965 #DDE265

Tetradic

#639DE1 #E265DD #E2A765 #65E269

Monochromatic

#1A3B61 #2F6CB1 #6EA0D8 #96BAE3 #D3E2F3

Suggested palettes for this hue.

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