Slate blue

#3f48cc

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

Slate blue is a mid blue that reads grounded. A mid blue this balanced is a workhorse for corporate identity. Warm oranges and ambers opposite it add energy and grey keeps it professional.

Slate blue color values

Every conversion for #3f48cc, ready to copy. Hex, rgb, hsl, hsv, cmyk, cie-lab, xyz, decimal, web safe and the nearest Pantone.

Hex#3f48cc

RGB63, 72, 204

HSL236, 58%, 52%

HSV236, 69%, 80%

CMYK69%, 65%, 0%, 20%

Lab37.93, 39.32, -69.38

XYZ15.27, 10.05, 58.26

Decimal4147404

Web safe#3333cc

Pantone2728 C

Shades of slate blue

#333cc0 #2e36ae #29309b #242b88 #1f2576 #1a1f63 #151950 #10133e #0b0d2b #060818

Tints of slate blue

#5159d1 #636ad5 #747bda #868cdf #989de4 #aaaee8 #bcbfed #cdd0f2 #dfe1f7 #f1f2fb

Colors that go with slate blue

Complementary#ccc33f Analogous#3f8fcc Analogous#7d3fcc Triadic#cc3f48 Triadic#48cc3f Split complementary#cc7d3f Split complementary#8fcc3f

Slate blue in print

It sits in a comfortable part of the gamut and reproduces reliably on press. The cmyk build is 69, 65, 0, 20.

The same color needs a different cmyk build depending on the paper. Here is #3f48cc on both.

Coated stockgloss or silk, C

69 65 0 20

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

Uncoated stocknatural or matte, U

67 64 4 26

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.

Slate blue in css

Copy #3f48cc straight into your stylesheet.

.background { background-color: #3f48cc; }
.text { color: #3f48cc; }
.border { border: 2px solid #3f48cc; }

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 #3f48cc against black and white text, measured to the WCAG standard.

Use white text on this color for readable body copy. To test #3f48cc against any other color, not just black and white, run the pair through our contrast checker for a live WCAG reading.

Slate blue on a business card, sticker and pattern

A quick look at how #3f48cc 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 the color palette generator, or check a design for print with the rgb to cmyk converter.

Turn slate blue into a seamless pattern

Four patterns built from #3f48cc 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 #3f48cc is computed, not guessed. Rgb, hsl, hsv, lab and xyz are derived through the usual sRGB conversion formulas. The coated and uncoated cmyk builds differ because uncoated stock absorbs more ink and gains dot, so the same color needs a heavier, slightly duller build on press. For Pantone we return the nearest reference by perceptual distance, which gets you close but is not a substitute for a physical swatch book.