Deep sky blue

#42abf3

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

This is Deep sky blue, a vivid blue at 204 degrees. A mid blue this balanced is a workhorse for corporate identity. Warm oranges and ambers opposite it add energy and grey keeps it professional.

Deep sky blue color values

Every conversion for #42abf3, ready to copy. Hex, rgb, hsl, hsv, cmyk, cie-lab, xyz, decimal, web safe and the nearest Pantone.

Hex#42abf3
RGB66, 171, 243
HSL204, 88%, 61%
HSV204, 73%, 95%
CMYK73%, 30%, 0%, 5%
Lab67.09, -6.78, -44.54
XYZ32.99, 36.76, 90.15
Decimal4369395
Web safe#3399ff
Pantone2915 C
Pantone2915 CHex#42abf3Rgb66 171 243Cmyk73 30 0 5Lab67 -7 -45Darker#0a619cDeep#0e8adfLighter#8bc8f2

Shades of deep sky blue

Tints of deep sky blue

Colors that go with deep sky blue

Deep sky 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 73, 30, 0, 5.

The same color needs a different cmyk build depending on the paper. Here is #42abf3 on both.

Coated stockgloss or silk, C
73 30 0 5
Ink sits on the surface, so colors stay bright and close to screen.
Uncoated stocknatural or matte, U
71 32 4 11
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 readrgb vs cmyk for print andwhat the k in cmyk means.

Deep sky blue in css

Copy #42abf3 straight into your stylesheet.

.background { background-color: #42abf3; }
.text { color: #42abf3; }
.border { border: 2px solid #42abf3; }

How deep sky blue looks on light and dark

Deep sky blue and accessibility

Contrast ratios for #42abf3 against black and white text, measured to the WCAG standard.

Textwhite text on this color
2.51:1
AAfail · AA largefail · AAAfail
Textblack text on this color
8.35:1
AApass · AA largepass · AAApass

Use black text on this color for readable body copy. To test #42abf3 against any other color, not just black and white, run the pair through ourcontrast checker for a live WCAG reading.

Deep sky blue on a business card, sticker and pattern

A quick look at how #42abf3 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 deep sky blue? Pull matching colors from any photo with thecolor palette generator, or check a design for print with thergb to cmyk converter.

Turn deep sky blue into a seamless pattern

Four patterns built from #42abf3 and its shades, free at print quality. Click any one to keep editing in the pattern maker.

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

Open in pattern maker

How we calculate these values

Every value on this page for #42abf3 is computed, not guessed. 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. For Pantone we return the nearest reference by perceptual distance, which gets you close but is not a substitute for a physical swatch book.