Close to Slate Gray
#646E89
#646E89 is a mid-tone, soft, grayish blue, close to the color Slate Gray. In RGB it’s made of 39.2% red, 43.1% green, and 53.7% blue. Its hue is 224°, with 16% saturation and 46% 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 #646E89.
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
5.08:1 AABlack text on this color
4.13:1 AA LargeThis color as text on white
5.08:1 AAThis color as text on black
4.13:1 AA LargeHow it looks with color blindness
About 1 in 12 men and 1 in 200 women see color differently. Here’s #646E89 as they’d see it.
#646E89 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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Questions about #646E89
What color is #646E89?
#646E89 is a mid-tone, soft, grayish blue, close to the color Slate Gray. In RGB it’s made of 39.2% red, 43.1% green, and 53.7% blue. Its hue is 224°, with 16% saturation and 46% lightness, so it reads as a cool color. White text sits best on top of it.
What is #646E89 in RGB?
#646E89 is rgb(100, 110, 137): 100 red, 110 green, and 137 blue on a 0–255 scale.
What is #646E89 in CMYK?
Roughly cmyk(27, 20, 0, 46). Print results depend on paper and press, so proof it before a big print run.
What Pantone is closest to #646E89?
PANTONE 431 C is the closest match in our list. Screen colors and ink never match perfectly; check a physical Pantone guide.
What color goes with #646E89?
Its complement #776E53 gives the strongest contrast. For something calmer, try its analogous neighbors, or its own tints and shades above.