Close to Iron
#645F56
#645F56 is a dark neutral gray, close to the color Iron. In RGB it’s made of 39.2% red, 37.3% green, and 33.7% blue. Its hue is 39°, with 8% saturation and 36% lightness, so it reads as a neutral 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 #645F56.
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
6.34:1 AABlack text on this color
3.31:1 AA LargeThis color as text on white
6.34:1 AAThis color as text on black
3.31:1 AA LargeHow it looks with color blindness
About 1 in 12 men and 1 in 200 women see color differently. Here’s #645F56 as they’d see it.
#645F56 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
Brand names identify the brands only; no affiliation. Test yourself in Brand Colors.
Questions about #645F56
What color is #645F56?
#645F56 is a dark neutral gray, close to the color Iron. In RGB it’s made of 39.2% red, 37.3% green, and 33.7% blue. Its hue is 39°, with 8% saturation and 36% lightness, so it reads as a neutral color. White text sits best on top of it.
What is #645F56 in RGB?
#645F56 is rgb(100, 95, 86): 100 red, 95 green, and 86 blue on a 0–255 scale.
What is #645F56 in CMYK?
Roughly cmyk(0, 5, 14, 61). Print results depend on paper and press, so proof it before a big print run.
What Pantone is closest to #645F56?
PANTONE Warm Gray 11 C is the closest match in our list. Screen colors and ink never match perfectly; check a physical Pantone guide.
What color goes with #645F56?
Its complement #5B6069 gives the strongest contrast. For something calmer, try its analogous neighbors, or its own tints and shades above.