Dark slate blue

#003bbf

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

This is Dark slate blue, a vivid blue at 221 degrees. Deep blues like this anchor serious, established brands. Warm oranges and ambers opposite it add energy and grey keeps it professional.

Dark slate blue color values

Every conversion for #003bbf, ready to copy. Hex, rgb, hsl, hsv, cmyk, cie-lab, xyz, decimal, web safe and the nearest Pantone.

Hex#003bbf

RGB0, 59, 191

HSL221, 100%, 37%

HSV221, 100%, 75%

CMYK100%, 69%, 0%, 25%

Lab31.55, 38.45, -72.35

XYZ10.97, 6.89, 50.04

Decimal15295

Web safe#0033cc

Pantone286 C

Shades of dark slate blue

#0036af #00319f #002c8f #00277f #00226f #001d5f #00184f #00133f #000e2f #00091f

Tints of dark slate blue

#0044dd #004efb #1a61ff #3876ff #578bff #759fff #93b4ff #b1c9ff #cfdeff #edf3ff

Colors that go with dark slate blue

Complementary#bf8400 Analogous#009abf Analogous#2500bf Triadic#bf003b Triadic#3bbf00 Split complementary#bf2500 Split complementary#9abf00

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, 69, 0, 25.

The same color needs a different cmyk build depending on the paper. Here is #003bbf on both.

Coated stockgloss or silk, C

100 69 0 25

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

Uncoated stocknatural or matte, U

96 67 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 #003bbf straight into your stylesheet.

.background { background-color: #003bbf; }
.text { color: #003bbf; }
.border { border: 2px solid #003bbf; }

How dark slate blue looks on light and dark

Sample text on black

Sample text on white

Text on this color

Dark slate blue and accessibility

Contrast ratios for #003bbf against black and white text, measured to the WCAG standard.

Use white text on this color for readable body copy. To test #003bbf 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 #003bbf sits on real print products. Start any of these in the maker.

Business 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 #003bbf 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 dark slate blue, free and print ready.

Open in pattern maker

How we calculate these values

The figures for #003bbf come from standard color math, shown so you can check them. 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.