Dark blue

#331d9b

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

This is Dark blue, a strong blue at 250 degrees. Deep blues like this anchor serious, established brands. Warm oranges and ambers opposite it add energy and grey keeps it professional.

Dark blue color values

Every conversion for #331d9b, ready to copy. Hex, rgb, hsl, hsv, cmyk, cie-lab, xyz, decimal, web safe and the nearest Pantone.

Hex#331d9b
RGB51, 29, 155
HSL250, 68%, 36%
HSV250, 81%, 61%
CMYK67%, 81%, 0%, 39%
Lab23.5, 46.28, -63.98
XYZ7.72, 3.95, 31.37
Decimal3349915
Web safe#333399
Pantone2746 C
Pantone2746 CHex#331d9bRgb51 29 155Cmyk67 81 0 39Lab24 46 -64Darker#110a34Deep#1f125fLighter#4d31ce

Shades of dark blue

Tints of dark blue

Colors that go with dark blue

Dark 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 67, 81, 0, 39.

The same color needs a different cmyk build depending on the paper. Here is #331d9b on both.

Coated stockgloss or silk, C
67 81 0 39
Ink sits on the surface, so colors stay bright and close to screen.
Uncoated stocknatural or matte, U
66 79 4 45
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 blue in css

Copy #331d9b straight into your stylesheet.

.background { background-color: #331d9b; }
.text { color: #331d9b; }
.border { border: 2px solid #331d9b; }

How dark blue looks on light and dark

Dark blue and accessibility

Contrast ratios for #331d9b against black and white text, measured to the WCAG standard.

Textwhite text on this color
11.73:1
AA pass · AA large pass · AAA pass
Textblack text on this color
1.79:1
AA fail · AA large fail · AAA fail

Use white text on this color for readable body copy. To test #331d9b against any other color, not just black and white, run the pair through our contrast checker for a live WCAG reading.

Dark blue on a business card, sticker and pattern

A quick look at how #331d9b 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 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 blue into a seamless pattern

Four patterns built from #331d9b 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 blue, free and print ready.

Open in pattern maker

How we calculate these values

Here is how the numbers for #331d9b are worked out. We convert from sRGB to each space with the standard formulas, so the codes match what design tools show. 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. The Pantone value is the closest reference by perceptual color distance and should be treated as a starting point, not a guaranteed match.