Slate blue

#646ea0

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

This is Slate blue, a muted blue at 230 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.

Slate blue color values

Every conversion for #646ea0, ready to copy. Hex, rgb, hsl, hsv, cmyk, cie-lab, xyz, decimal, web safe and the nearest Pantone.

Hex#646ea0

RGB100, 110, 160

HSL230, 24%, 51%

HSV230, 38%, 63%

CMYK38%, 31%, 0%, 37%

Lab47.49, 9.0, -28.2

XYZ17.18, 16.4, 35.52

Decimal6581920

Web safe#666699

Pantone660 C

Shades of slate blue

#5a6493 #515a85 #495077 #404768 #373d5a #2e334c #262a3e #1d202f #141621 #0c0d13

Tints of slate blue

#727ba9 #8189b2 #8f96ba #9ea4c3 #acb1cc #babfd5 #c9ccde #d7dae7 #e6e7ef #f4f5f8

Colors that go with slate blue

Complementary#a09664 Analogous#648ca0 Analogous#7864a0 Triadic#a0646e Triadic#6ea064 Split complementary#a07864 Split complementary#8ca064

Slate blue in print

The cmyk build is well inside gamut, so what you see on screen is close to what prints. The cmyk build is 38, 31, 0, 37.

The same color needs a different cmyk build depending on the paper. Here is #646ea0 on both.

Coated stockgloss or silk, C

38 31 0 37

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

Uncoated stocknatural or matte, U

39 33 4 43

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 readrgb vs cmyk for print andwhat the k in cmyk means.

Slate blue in css

Copy #646ea0 straight into your stylesheet.

.background { background-color: #646ea0; }
.text { color: #646ea0; }
.border { border: 2px solid #646ea0; }

How slate blue looks on light and dark

Sample text on black

Sample text on white

Text on this color

Slate blue and accessibility

Contrast ratios for #646ea0 against black and white text, measured to the WCAG standard.

Use white text on this color for readable body copy. To test #646ea0 against any other color, not just black and white, run the pair through ourcontrast checker for a live WCAG reading.

Slate blue on a business card, sticker and pattern

A quick look at how #646ea0 sits on real print products. Start any of these in the maker.

Business card

Sticker

Repeat pattern

Building a full palette around slate blue? Pull matching colors from any photo with thecolor palette generator, or check a design for print with thergb to cmyk converter.

Turn slate blue into a seamless pattern

Four patterns built from #646ea0 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 slate blue, free and print ready.

Open in pattern maker

How we calculate these values

Every value on this page for #646ea0 is computed, not guessed. Rgb, hsl, hsv, lab and xyz are derived through the usual sRGB conversion formulas. Two cmyk builds are shown because coated and uncoated papers behave differently, uncoated soaks up ink and needs more of it to hit the same target. For Pantone we return the nearest reference by perceptual distance, which gets you close but is not a substitute for a physical swatch book.