Close to Ultramarine
#400EFF
#400EFF is a mid-tone, vivid blue, close to the color Ultramarine. In RGB it’s made of 25.1% red, 5.5% green, and 100% blue. Its hue is 252°, with 100% saturation and 53% 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 #400EFF.
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
7.71:1 AAABlack text on this color
2.72:1 FailThis color as text on white
7.71:1 AAAThis color as text on black
2.72:1 FailHow it looks with color blindness
About 1 in 12 men and 1 in 200 women see color differently. Here’s #400EFF as they’d see it.
#400EFF in use
A headline in this color
Body text stays dark for reading; the color carries buttons, links, and accents.
On a dark background
Get startedSimilar colors
Questions about #400EFF
What color is #400EFF?
#400EFF is a mid-tone, vivid blue, close to the color Ultramarine. In RGB it’s made of 25.1% red, 5.5% green, and 100% blue. Its hue is 252°, with 100% saturation and 53% lightness, so it reads as a cool color. White text sits best on top of it.
What is #400EFF in RGB?
#400EFF is rgb(64, 14, 255): 64 red, 14 green, and 255 blue on a 0–255 scale.
What is #400EFF in CMYK?
Roughly cmyk(75, 95, 0, 0). Print results depend on paper and press, so proof it before a big print run.
What Pantone is closest to #400EFF?
PANTONE Violet C is the closest match in our list. Screen colors and ink never match perfectly; check a physical Pantone guide.
What color goes with #400EFF?
Its complement #465A00 gives the strongest contrast. For something calmer, try its analogous neighbors, or its own tints and shades above.