Close to Royal Blue
#166EFB
#166EFB is a mid-tone, vivid blue, close to the color Royal Blue. In RGB it’s made of 8.6% red, 43.1% green, and 98.4% blue. Its hue is 217°, with 97% saturation and 54% lightness, so it reads as a cool color. Black 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 #166EFB.
Split complementary
The two neighbors of the complement: contrast that’s easier to balance.
Open in the palette builder →Tetradic
Two complementary pairs: rich, best with one color in charge.
Open in the palette builder →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
4.51:1 AABlack text on this color
4.66:1 AAThis color as text on white
4.51:1 AAThis color as text on black
4.66:1 AAHow it looks with color blindness
About 1 in 12 men and 1 in 200 women see color differently. Here’s #166EFB as they’d see it.
#166EFB 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 #166EFB
What color is #166EFB?
#166EFB is a mid-tone, vivid blue, close to the color Royal Blue. In RGB it’s made of 8.6% red, 43.1% green, and 98.4% blue. Its hue is 217°, with 97% saturation and 54% lightness, so it reads as a cool color. Black text sits best on top of it.
What is #166EFB in RGB?
#166EFB is rgb(22, 110, 251): 22 red, 110 green, and 251 blue on a 0–255 scale.
What is #166EFB in CMYK?
Roughly cmyk(91, 56, 0, 2). Print results depend on paper and press, so proof it before a big print run.
What Pantone is closest to #166EFB?
PANTONE 2935 C is the closest match in our list. Screen colors and ink never match perfectly; check a physical Pantone guide.
What color goes with #166EFB?
Its complement #A66905 gives the strongest contrast. For something calmer, try its analogous neighbors, or its own tints and shades above.