Close to Dark Slate Blue
#283F8D
#283F8D is a dark, rich blue, close to the color Dark Slate Blue. In RGB it’s made of 15.7% red, 24.7% green, and 55.3% blue. Its hue is 226°, with 56% saturation and 35% lightness, so it reads as a cool color. White text sits best on top of it.
Color codes
Tints, shades & tones
Tints add white, shades add black, tones add gray. Tap any one to open its page.
Tints
Shades
Tones
Color harmonies
Combinations from the color wheel, built around #283F8D.
Split complementary
The two neighbors of the complement: contrast that’s easier to balance.
Open in the palette creator →Tetradic
Two complementary pairs: rich, best with one color in charge.
Open in the palette creator →Contrast & readability
WCAG contrast ratios for text. 4.5:1 is the minimum for body text, 3:1 for large text.
White text on this color
9.61:1 AAABlack text on this color
2.19:1 FailThis color as text on white
9.61:1 AAAThis color as text on black
2.19:1 FailHow it looks with color blindness
About 1 in 12 men and 1 in 200 women see color differently. Here’s #283F8D as they’d see it.
#283F8D in use
A headline in this color
Body text stays dark for reading; the color carries buttons, links, and accents.
On a dark background
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Brands with a similar color
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Questions about #283F8D
What color is #283F8D?
#283F8D is a dark, rich blue, close to the color Dark Slate Blue. In RGB it’s made of 15.7% red, 24.7% green, and 55.3% blue. Its hue is 226°, with 56% saturation and 35% lightness, so it reads as a cool color. White text sits best on top of it.
What is #283F8D in RGB?
#283F8D is rgb(40, 63, 141): 40 red, 63 green, and 141 blue on a 0–255 scale.
What is #283F8D in CMYK?
Roughly cmyk(72, 55, 0, 45). Print results depend on paper and press, so proof it before a big print run.
What Pantone is closest to #283F8D?
PANTONE 288 C is the closest match in our list. Screen colors and ink never match perfectly; check a physical Pantone guide.
What color goes with #283F8D?
Its complement #534300 gives the strongest contrast. For something calmer, try its analogous neighbors, or its own tints and shades above.