#669bf3

Color #669bf3

A vivid, highly saturated light blue.

Closest named color Cornflower Blue #6495ed · ΔE 2.35 Nearest Tailwind class blue-400 #51a2ff · ΔE 4.1

Open in Palette generator Color wheel Color mixer Contrast checker Blindness simulator Gradient

Conversions

HEX

#669bf3

RGB

rgb(102, 155, 243)

HSL

hsl(217.4, 85.5%, 67.6%)

HSV / HSB

hsv(217.4, 58%, 95.3%)

CMYK

cmyk(58%, 36.2%, 0%, 4.7%)

LAB

lab(63.95, 8.14, -49.4)

LCH

lch(63.95, 50.07, 279.36)

OKLCH

oklch(69.2%, 0.142, 260.07)

HWB

hwb(217.4, 40%, 4.7%)

Harmony colors

Complementary

#f3be66

Analogous

#66e2f3

#669bf3

#7766f3

Triadic

#669bf3

#f3669b

#9bf366

Split-complementary

#669bf3

#f37766

#e2f366

Tetradic

#669bf3

#be66f3

#f3be66

#9bf366

Square

#669bf3

#f366e2

#f3be66

#66f377

Shades

Color #669bf3 mixed toward black.

#3078ef

#115bd5

#0c44a0

#082d6b

#041735

Tints

Color #669bf3 mixed toward white.

#7facf5

#99bcf7

#b2cdf9

#ccdefb

#e5eefd

Tones

Color #669bf3 mixed toward gray.

#729ee7

#7da1db

#89a4d0

#95a7c4

#a1a9b8

Accessibility

Aa White text on this color

2.78:1

Aa Black text on this color

7.55:1

Black text reads better on this background (7.55:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#8081e2 · ΔE 11.9

Deuteranopia

#7d79dd · ΔE 14

Tritanopia

#69d3cf · ΔE 30.2

Achromatopsia

#9b9b9b · ΔE 23.6

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

Code

CSS

background-color: #669bf3;

Tailwind (arbitrary value)

bg-[#669bf3]

Related colors

Cornflower Blue #6495ed

Light Steel Blue #b0c4de

Light Slate Gray #778899

Slate Gray #708090

Royal Blue #4169e1

Dodger Blue #1e90ff

Frequently asked questions

#669bf3 (#669bf3) is rgb(102, 155, 243) in RGB.

No, #669bf3 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 #669bf3, or check how it holds up for accessibility.

Generate a palette → Check contrast