Dark slate blue

#15359b

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 strong. 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 #15359b, ready to copy. Hex, rgb, hsl, hsv, cmyk, cie-lab, xyz, decimal, web safe and the nearest Pantone.

Hex#15359b

RGB21, 53, 155

HSL226, 76%, 35%

HSV226, 86%, 61%

CMYK86%, 66%, 0%, 39%

Lab26.94, 29.36, -58.37

XYZ7.5, 5.07, 31.59

Decimal1389979

Web safe#003399

Pantone286 C

Shades of dark slate blue

#13318e #122c81 #102875 #0e2368 #0c1f5b #0b1b4e #091641 #071235 #050e28 #04091b

Tints of dark slate blue

#193fb7 #1d48d3 #2c58e2 #486ee6 #6484ea #809aee #9cb0f2 #b8c6f5 #d3dcf9 #eff3fd

Colors that go with dark slate blue

Complementary#9b7b15 Analogous#15789b Analogous#38159b Triadic#9b1535 Triadic#359b15 Split complementary#9b3815 Split complementary#789b15

Dark slate blue in print

The saturation is high, which is where rgb and cmyk drift apart, so a printed proof is worth it. The cmyk build is 86, 66, 0, 39.

The same color needs a different cmyk build depending on the paper. Here is #15359b on both.

Coated stockgloss or silk, C

86 66 0 39

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

Uncoated stocknatural or matte, U

83 65 4 45

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 #15359b straight into your stylesheet.

.background { background-color: #15359b; }
.text { color: #15359b; }
.border { border: 2px solid #15359b; }

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 #15359b against black and white text, measured to the WCAG standard.

Use white text on this color for readable body copy. To test #15359b 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 #15359b 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 #15359b 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

Here is how the numbers for #15359b are worked out. 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.