Dark slate gray

#21403d

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

Dark slate gray is a dark teal, anchoring between blue and green. Teals like this feel modern and clean. Warm corals opposite it on the wheel bring contrast and sand tones keep it coastal.

Dark slate gray color values

Every conversion for #21403d, ready to copy. Hex, rgb, hsl, hsv, cmyk, cie-lab, xyz, decimal, web safe and the nearest Pantone.

Hex#21403d

RGB33, 64, 61

HSL174, 32%, 19%

HSV174, 48%, 25%

CMYK48%, 0%, 5%, 75%

Lab24.72, -12.37, -1.77

XYZ3.3, 4.33, 5.08

Decimal2179133

Web safe#333333

Pantone5467 C

Shades of dark slate gray

#1f3c39 #1c3735 #1a3330 #182e2c #162a28 #132624 #112120 #0f1d1c #0d1917 #0a1413

Tints of dark slate gray

#2e5a56 #3c746f #498e88 #57a8a0 #71b6af #8bc3be #a5d1cc #bfdedb #d9ebea #f3f9f8

Colors that go with dark slate gray

Complementary#402124 Analogous#21402d Analogous#213340 Triadic#3d2140 Triadic#403d21 Split complementary#402133 Split complementary#402d21

Dark slate gray in print

It runs deep in print, so a rich black build underneath keeps it from looking flat. The cmyk build is 48, 0, 5, 75.

The same color needs a different cmyk build depending on the paper. Here is #21403d on both.

Coated stockgloss or silk, C

48 0 5 75

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

Uncoated stocknatural or matte, U

48 4 9 81

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 readrgb vs cmyk for print andwhat the k in cmyk means.

Dark slate gray in css

Copy #21403d straight into your stylesheet.

.background { background-color: #21403d; }
.text { color: #21403d; }
.border { border: 2px solid #21403d; }

How dark slate gray looks on light and dark

Sample text on black

Sample text on white

Text on this color

Dark slate gray and accessibility

Contrast ratios for #21403d against black and white text, measured to the WCAG standard.

Use white text on this color for readable body copy. To test #21403d against any other color, not just black and white, run the pair through ourcontrast checker for a live WCAG reading.

Dark slate gray on a business card, sticker and pattern

A quick look at how #21403d sits on real print products. Start any of these in the maker.

Business card

Sticker

Repeat pattern

Building a full palette around dark slate gray? Pull matching colors from any photo with thecolor palette generator, or check a design for print with thergb to cmyk converter.

Turn dark slate gray into a seamless pattern

Four patterns built from #21403d 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 gray, free and print ready.

Open in pattern maker

How we calculate these values

Every value on this page for #21403d is computed, not guessed. Rgb, hsl, hsv, lab and xyz are derived through the usual sRGB conversion formulas. The uncoated cmyk build carries more ink than the coated one, which is what a printer would compensate for when the same color runs on a rougher stock. For Pantone we return the nearest reference by perceptual distance, which gets you close but is not a substitute for a physical swatch book.