#66a3ff

Color #66a3ff

A vivid, highly saturated light blue.

Closest named color Cornflower Blue #6495ed · ΔE 5.65 Nearest Tailwind class blue-400 #51a2ff · ΔE 2.7

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Conversions

HEX

#66a3ff

RGB

rgb(102, 163, 255)

HSL

hsl(216.1, 100%, 70%)

HSV / HSB

hsv(216.1, 60%, 100%)

CMYK

cmyk(60%, 36.1%, 0%, 0%)

LAB

lab(66.7, 7.36, -51.6)

LCH

lch(66.7, 52.12, 278.12)

OKLCH

oklch(71.5%, 0.1493, 258.41)

HWB

hwb(216.1, 40%, 0%)

Harmony colors

Complementary

#ffc266

Analogous

#66efff

#66a3ff

#7666ff

Triadic

#66a3ff

#ff66a3

#a3ff66

Split-complementary

#66a3ff

#ff7666

#efff66

Tetradic

#66a3ff

#c266ff

#ffc266

#a3ff66

Square

#66a3ff

#ff66ef

#ffc266

#66ff76

Shades

Color #66a3ff mixed toward black.

#2b7fff

#005fee

#0047b3

#002f77

#00183b

Tints

Color #66a3ff mixed toward white.

#80b2ff

#99c2ff

#b3d1ff

#cce0ff

#e5f0ff

Tones

Color #66a3ff mixed toward gray.

#73a6f2

#7fa8e5

#8cabd9

#99adcc

#a6b0bf

Accessibility

Aa White text on this color

2.55:1

Aa Black text on this color

8.25:1

Black text reads better on this background (8.25:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#8585ed · ΔE 13.4

Deuteranopia

#817ce8 · ΔE 15.6

Tritanopia

#6addda · ΔE 30.2

Achromatopsia

#a2a2a2 · ΔE 24

Left half is the original, right half is the simulated appearance. See all 8 vision types →

Code

CSS

background-color: #66a3ff;

Tailwind (arbitrary value)

bg-[#66a3ff]

Related colors

Light Steel Blue #b0c4de

Cornflower Blue #6495ed

Light Slate Gray #778899

Slate Gray #708090

Dodger Blue #1e90ff

Alice Blue #f0f8ff

Frequently asked questions

#66a3ff (#66a3ff) is rgb(102, 163, 255) in RGB.

No, #66a3ff is not web-safe. The nearest web-safe colors are among its tones and shades below.

Related tools

Colors

HEX to RGB Converter

Convert any HEX color code to its RGB and HSL equivalents, live, with copy-to-clipboard values.

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Contrast Checker

Check the WCAG contrast ratio between any two colors, live, with AA/AAA pass-fail results.

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Palette Generator

Generate complementary, analogous, triadic, split-complementary, tetradic, square, and monochromatic palettes from any base color.

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Build something with this color

Generate a full palette from #66a3ff, or check how it holds up for accessibility.

Generate a palette → Check contrast