Royal blue

#666dca

Hex, rgb, cmyk and Pantone values for royal blue, with shades, tints, matching colors and free print quality patterns.

This is Royal blue, a soft blue at 236 degrees. A mid blue this balanced is a workhorse for corporate identity. It pairs with warm neutrals for balance, or with a brighter accent for contrast.

Royal blue color values

Every conversion for #666dca, ready to copy. Hex, rgb, hsl, hsv, cmyk, cie-lab, xyz, decimal, web safe and the nearest Pantone.

Hex#666dca

RGB102, 109, 202

HSL236, 49%, 60%

HSV236, 50%, 79%

CMYK50%, 46%, 0%, 21%

Lab49.53, 22.72, -49.35

XYZ21.61, 18.03, 58.22

Decimal6712778

Web safe#6666cc

Pantone2727 C

Shades of royal blue

#525ac3 #4049b9 #3941a5 #323991 #2b317c #242968 #1d2154 #16193f #0f112b #080917

Tints of royal blue

#747acf #8288d4 #9095d9 #9ea2dd #acb0e2 #babde7 #c8caec #d6d8f1 #e4e5f6 #f2f2fa

Colors that go with royal blue

Complementary#cac366 Analogous#669fca Analogous#9166ca Triadic#ca666d Triadic#6dca66 Split complementary#ca9166 Split complementary#9fca66

Royal blue in print

It converts to cmyk cleanly and holds its character from screen to paper. The cmyk build is 50, 46, 0, 21.

The same color needs a different cmyk build depending on the paper. Here is #666dca on both.

Coated stockgloss or silk, C

50 46 0 21

Ink sits on the surface, so colors stay bright and close to screen.

Uncoated stocknatural or matte, U

50 46 4 27

The stock absorbs ink and gains dot, so it needs a heavier build and reads a touch softer.

This color converts to cmyk comfortably and should hold on press.

See how it converts in the rgb to cmyk converter, or read rgb vs cmyk for print and what the k in cmyk means.

Royal blue in css

Copy #666dca straight into your stylesheet.

.background { background-color: #666dca; }
.text { color: #666dca; }
.border { border: 2px solid #666dca; }

How royal blue looks on light and dark

Sample text on black

Sample text on white

Text on this color

Royal blue and accessibility

Contrast ratios for #666dca against black and white text, measured to the WCAG standard.

Use black text on this color for readable body copy. To test #666dca against any other color, not just black and white, run the pair through our contrast checker for a live WCAG reading.

Royal blue on a business card, sticker and pattern

A quick look at how #666dca sits on real print products. Start any of these in the maker.

Business card

Sticker

Repeat pattern

Building a full palette around royal blue? Pull matching colors from any photo with the color palette generator, or check a design for print with the rgb to cmyk converter.

Turn royal blue into a seamless pattern

Four patterns built from #666dca and its shades, free at print quality. Click any one to keep editing in the pattern maker.

Arches Signature stripes Gem Shingles

Make posters, wallpaper and packaging art from royal blue, free and print ready.

Open in pattern maker

How we calculate these values

The figures for #666dca come from standard color math, shown so you can check them. The rgb, hsl, hsv, cie-lab and xyz values follow the standard conversions from the sRGB color space. The uncoated cmyk build carries more ink than the coated one, which is what a printer would compensate for when the same color runs on a rougher stock. For Pantone we return the nearest reference by perceptual distance, which gets you close but is not a substitute for a physical swatch book.