Close to Ultramarine
#421AFF
#421AFF is a mid-tone, vivid blue, close to the color Ultramarine. In RGB it’s made of 25.9% red, 10.2% green, and 100% blue. Its hue is 250°, with 100% saturation and 55% 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 #421AFF.
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
7.44:1 AAABlack text on this color
2.82:1 FailThis color as text on white
7.44:1 AAAThis color as text on black
2.82:1 FailHow it looks with color blindness
About 1 in 12 men and 1 in 200 women see color differently. Here’s #421AFF as they’d see it.
#421AFF 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 #421AFF
What color is #421AFF?
#421AFF is a mid-tone, vivid blue, close to the color Ultramarine. In RGB it’s made of 25.9% red, 10.2% green, and 100% blue. Its hue is 250°, with 100% saturation and 55% lightness, so it reads as a cool color. White text sits best on top of it.
What is #421AFF in RGB?
#421AFF is rgb(66, 26, 255): 66 red, 26 green, and 255 blue on a 0–255 scale.
What is #421AFF in CMYK?
Roughly cmyk(74, 90, 0, 0). Print results depend on paper and press, so proof it before a big print run.
What Pantone is closest to #421AFF?
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 #421AFF?
Its complement #4B5C01 gives the strongest contrast. For something calmer, try its analogous neighbors, or its own tints and shades above.