Close to Dark Slate Gray
#21403E
#21403E is a very dark, muted teal, close to the color Dark Slate Gray. In RGB it’s made of 12.9% red, 25.1% green, and 24.3% blue. Its hue is 176°, with 32% saturation and 19% 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 #21403E.
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
11.24:1 AAABlack text on this color
1.87:1 FailThis color as text on white
11.24:1 AAAThis color as text on black
1.87:1 FailHow it looks with color blindness
About 1 in 12 men and 1 in 200 women see color differently. Here’s #21403E as they’d see it.
#21403E 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
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Questions about #21403E
What color is #21403E?
#21403E is a very dark, muted teal, close to the color Dark Slate Gray. In RGB it’s made of 12.9% red, 25.1% green, and 24.3% blue. Its hue is 176°, with 32% saturation and 19% lightness, so it reads as a cool color. White text sits best on top of it.
What is #21403E in RGB?
#21403E is rgb(33, 64, 62): 33 red, 64 green, and 62 blue on a 0–255 scale.
What is #21403E in CMYK?
Roughly cmyk(48, 0, 3, 75). Print results depend on paper and press, so proof it before a big print run.
What Pantone is closest to #21403E?
PANTONE 316 C is the closest match in our list. Screen colors and ink never match perfectly; check a physical Pantone guide.
What color goes with #21403E?
Its complement #4E3435 gives the strongest contrast. For something calmer, try its analogous neighbors, or its own tints and shades above.