Dark slate blue

#0040be

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

Dark slate blue sits in the blue band, deep and vivid. Deep blues like this anchor serious, established brands. It pairs with warm neutrals for balance, or with a brighter accent for contrast.

Dark slate blue color values

Every conversion for #0040be, ready to copy. Hex, rgb, hsl, hsv, cmyk, cie-lab, xyz, decimal, web safe and the nearest Pantone.

Hex#0040be
RGB0, 64, 190
HSL220, 100%, 37%
HSV220, 100%, 75%
CMYK100%, 66%, 0%, 25%
Lab32.67, 34.83, -69.93
XYZ11.13, 7.38, 49.55
Decimal16574
Web safe#0033cc
Pantone2728 C
Pantone2728 CHex#0040beRgb0 64 190Cmyk100 66 0 25Lab33 35 -70Darker#00153dDeep#002877Lighter#135ef3

Shades of dark slate blue

Tints of dark slate blue

Colors that go with dark slate blue

Dark slate blue in print

A color this vivid sometimes sits just outside cmyk gamut, so expect a small dip in punch on paper. The cmyk build is 100, 66, 0, 25.

The same color needs a different cmyk build depending on the paper. Here is #0040be on both.

Coated stockgloss or silk, C
100 66 0 25
Ink sits on the surface, so colors stay bright and close to screen.
Uncoated stocknatural or matte, U
96 65 4 31
The stock absorbs ink and gains dot, so it needs a heavier build and reads a touch softer.

This color is saturated enough to sit near the edge of cmyk gamut, so expect a small drop in punch on paper and proof it before a long run.

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 #0040be straight into your stylesheet.

.background { background-color: #0040be; }
.text { color: #0040be; }
.border { border: 2px solid #0040be; }

How dark slate blue looks on light and dark

Dark slate blue and accessibility

Contrast ratios for #0040be against black and white text, measured to the WCAG standard.

Textwhite text on this color
8.48:1
AA pass · AA large pass · AAA pass
Textblack text on this color
2.48:1
AA fail · AA large fail · AAA fail

Use white text on this color for readable body copy. To test #0040be 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 #0040be 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 #0040be 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

The figures for #0040be come from standard color math, shown so you can check them. We convert from sRGB to each space with the standard formulas, so the codes match what design tools show. 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. The Pantone value is the closest reference by perceptual color distance and should be treated as a starting point, not a guaranteed match.