Close to Umber Brown
#666151
#666151 is a dark neutral gray, close to the color Umber Brown. In RGB it’s made of 40% red, 38% green, and 31.8% blue. Its hue is 46°, with 11% 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 #666151.
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
6.19:1 AABlack text on this color
3.39:1 AA LargeThis color as text on white
6.19:1 AAThis color as text on black
3.39:1 AA LargeHow it looks with color blindness
About 1 in 12 men and 1 in 200 women see color differently. Here’s #666151 as they’d see it.
#666151 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
Brands with a similar color
Brand names identify the brands only; no affiliation. Test yourself in Brand Colors.
Questions about #666151
What color is #666151?
#666151 is a dark neutral gray, close to the color Umber Brown. In RGB it’s made of 40% red, 38% green, and 31.8% blue. Its hue is 46°, with 11% saturation and 36% lightness, so it reads as a neutral color. White text sits best on top of it.
What is #666151 in RGB?
#666151 is rgb(102, 97, 81): 102 red, 97 green, and 81 blue on a 0–255 scale.
What is #666151 in CMYK?
Roughly cmyk(0, 5, 21, 60). Print results depend on paper and press, so proof it before a big print run.
What Pantone is closest to #666151?
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 #666151?
Its complement #5C6171 gives the strongest contrast. For something calmer, try its analogous neighbors, or its own tints and shades above.