Steel blue

#337fcc

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

Steel blue sits in the blue band, mid and strong. A mid blue this balanced is a workhorse for corporate identity. It pairs with warm neutrals for balance, or with a brighter accent for contrast.

Steel blue color values

Every conversion for #337fcc, ready to copy. Hex, rgb, hsl, hsv, cmyk, cie-lab, xyz, decimal, web safe and the nearest Pantone.

Hex#337fcc
RGB51, 127, 204
HSL210, 60%, 50%
HSV210, 75%, 80%
CMYK75%, 38%, 0%, 20%
Lab52.11, 3.09, -46.53
XYZ19.85, 20.24, 59.99
Decimal3375052
Web safe#3366cc
Pantone285 C
Pantone285 CHex#337fccRgb51 127 204Cmyk75 38 0 20Lab52 3 -47Darker#16385aDeep#255b93Lighter#72a3d5

Shades of steel blue

Tints of steel blue

Colors that go with steel blue

Steel 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 75, 38, 0, 20.

The same color needs a different cmyk build depending on the paper. Here is #337fcc on both.

Coated stockgloss or silk, C
75 38 0 20
Ink sits on the surface, so colors stay bright and close to screen.
Uncoated stocknatural or matte, U
73 39 4 26
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.

Steel blue in css

Copy #337fcc straight into your stylesheet.

.background { background-color: #337fcc; }
.text { color: #337fcc; }
.border { border: 2px solid #337fcc; }

How steel blue looks on light and dark

Steel blue and accessibility

Contrast ratios for #337fcc against black and white text, measured to the WCAG standard.

Textwhite text on this color
4.16:1
AA fail · AA large pass · AAA fail
Textblack text on this color
5.05:1
AA pass · AA large pass · AAA fail

Use black text on this color for readable body copy. To test #337fcc against any other color, not just black and white, run the pair through our contrast checker for a live WCAG reading.

Steel blue on a business card, sticker and pattern

A quick look at how #337fcc 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 steel 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 steel blue into a seamless pattern

Four patterns built from #337fcc and its shades, free at print quality. Click any one to keep editing in the pattern maker.

Make posters, wallpaper and packaging art from steel blue, free and print ready.

Open in pattern maker

How we calculate these values

Here is how the numbers for #337fcc are worked out. The rgb, hsl, hsv, cie-lab and xyz values follow the standard conversions from the sRGB color space. 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.