Dark slate blue

#644a74

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

Dark slate blue is a deep purple with a rich cast. Deep purples like this carry luxury and craft. Yellow greens across the wheel wake it up and soft greys let it stay refined.

Dark slate blue color values

Every conversion for #644a74, ready to copy. Hex, rgb, hsl, hsv, cmyk, cie-lab, xyz, decimal, web safe and the nearest Pantone.

Hex#644a74
RGB100, 74, 116
HSL277, 22%, 37%
HSV277, 36%, 45%
CMYK14%, 36%, 0%, 55%
Lab35.73, 19.63, -19.89
XYZ10.86, 8.87, 17.66
Decimal6572660
Web safe#663366
Pantone668 C
Pantone668 CHex#644a74Rgb100 74 116Cmyk14 36 0 55Lab36 20 -20Darker#201825Deep#3e2e48Lighter#896a9b

Shades of dark slate blue

Tints of dark slate blue

Colors that go with dark slate blue

Dark slate blue in print

It converts to cmyk cleanly and holds its character from screen to paper. The cmyk build is 14, 36, 0, 55.

The same color needs a different cmyk build depending on the paper. Here is #644a74 on both.

Coated stockgloss or silk, C
14 36 0 55
Ink sits on the surface, so colors stay bright and close to screen.
Uncoated stocknatural or matte, U
17 37 4 61
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 #644a74 straight into your stylesheet.

.background { background-color: #644a74; }
.text { color: #644a74; }
.border { border: 2px solid #644a74; }

How dark slate blue looks on light and dark

Dark slate blue and accessibility

Contrast ratios for #644a74 against black and white text, measured to the WCAG standard.

Textwhite text on this color
7.57:1
AA pass · AA large pass · AAA pass
Textblack text on this color
2.77:1
AA fail · AA large fail · AAA fail

Use white text on this color for readable body copy. To test #644a74 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 #644a74 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 #644a74 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 #644a74 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. The Pantone value is the closest reference by perceptual color distance and should be treated as a starting point, not a guaranteed match.