Dark slate blue

#66339a

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

Dark slate blue falls in the purple range, deep and soft. Deep purples like this carry luxury and craft. Pair it with warm yellows for contrast, or with charcoal for a moody scheme.

Dark slate blue color values

Every conversion for #66339a, ready to copy. Hex, rgb, hsl, hsv, cmyk, cie-lab, xyz, decimal, web safe and the nearest Pantone.

Hex#66339a
RGB102, 51, 154
HSL270, 50%, 40%
HSV270, 67%, 60%
CMYK34%, 67%, 0%, 40%
Lab32.97, 43.15, -47.65
XYZ12.5, 7.53, 31.37
Decimal6697882
Web safe#663399
Pantone266 C
Pantone266 CHex#66339aRgb102 51 154Cmyk34 67 0 40Lab33 43 -48Darker#1f0f2fDeep#422164Lighter#8a55bf

Shades of dark slate blue

Tints of dark slate blue

Colors that go with dark slate blue

Dark 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 34, 67, 0, 40.

The same color needs a different cmyk build depending on the paper. Here is #66339a on both.

Coated stockgloss or silk, C
34 67 0 40
Ink sits on the surface, so colors stay bright and close to screen.
Uncoated stocknatural or matte, U
35 66 4 46
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.

Dark slate blue in css

Copy #66339a straight into your stylesheet.

.background { background-color: #66339a; }
.text { color: #66339a; }
.border { border: 2px solid #66339a; }

How dark slate blue looks on light and dark

Dark slate blue and accessibility

Contrast ratios for #66339a against black and white text, measured to the WCAG standard.

Textwhite text on this color
8.38:1
AA pass · AA large pass · AAA pass
Textblack text on this color
2.51:1
AA fail · AA large fail · AAA fail

Use white text on this color for readable body copy. To test #66339a against any other color, not just black and white, run the pair through our contrast checker for a live WCAG reading.

Dark slate blue on a business card, sticker and pattern

A quick look at how #66339a sits on real print products. Start any of these in the maker.

Your nameFounderhello@brand.comBusiness card
Sticker
Repeat pattern

Building a full palette around dark 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 dark slate blue into a seamless pattern

Four patterns built from #66339a and its shades, free at print quality. Click any one to keep editing in the pattern maker.

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

Open in pattern maker

How we calculate these values

Every value on this page for #66339a is computed, not guessed. We convert from sRGB to each space with the standard formulas, so the codes match what design tools show. 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. The Pantone figure is the nearest match in our reference set by perceptual distance and it is an approximation, not an exact spot color.