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283F3F

#283F3F closest to Emerald Forest

#283F3F is a dark gray; the closest named color is Emerald Forest. In the RGB color model it is made of 15.7% red, 24.7% green and 24.7% blue (rgb(40, 63, 63)). Its HSL value is 180° hue, 22% saturation and 20% lightness, and in CMYK it is 37% cyan, 0% magenta, 0% yellow and 75% black. #283F3F is a neutral color. White text reads best on it, with a contrast ratio of 11.21:1.

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#283F3F color conversion

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OKLCH

Variations of #283F3F

Shades

Mixed with black: richer and darker.

283F3F2135351B2C2C1523230F1B1B091212040A0A020404010101000000

Tints

Mixed with white: lighter and softer.

283F3F3B50504F62616374747886868D9999A3ADADB9C1C1D0D5D5E7EAEA

Tones

Mixed with gray: calmer and more muted.

283F3F314545394B4B4252524A5858535F5F5C6565656C6C6E7272777979

Hues

The same lightness and chroma, rotated around the color wheel.

313E312E3F342C3F372A3F3A293F3C283F3F283F42293E442A3D462C3D472E3C48

Temperatures

Cooler on the left, warmer on the right.

274C65284A5D28475628444E284247283F3F3243403B4640444A414C4D41555041

#283F3F color harmonies

Complementary

The opposite hue — maximum contrast and energy.

283F3F3F2828
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Split complementary

The two hues next to the complement — contrast with less tension.

283F3F3F28343F3428
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Analogous

Neighbouring hues — calm, cohesive and natural.

283F3F283F3428343F
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Triadic

Three hues evenly spaced at 120° — vibrant yet balanced.

283F3F3F283F3F3F28
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Tetradic

Two complementary pairs — rich, best with one dominant color.

283F3F28283F3F28283F3F28
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Square

Four hues spaced at 90° — bold and playful.

283F3F34283F3F2828343F28
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#283F3F for color-blind viewers (and dogs)

How #283F3F appears with each type of color vision deficiency (Machado 2009 model) — and to your dog. Try the dog vision simulator →

  • Dog vision 95% similarHow dogs see it · simulated as #383A3F
  • Protanopia 94% similar1.3% of men, 0.02% of women · simulated as #3C3D3F
  • Protanomaly 96% similar1.3% of men, 0.02% of women · simulated as #373D3F
  • Deuteranopia 95% similar1.2% of men, 0.01% of women · simulated as #383A3F
  • Deuteranomaly 96% similar5% of men, 0.35% of women · simulated as #343C3F
  • Tritanopia 98% similar0.001% of men, 0.03% of women · simulated as #1F403F
  • Tritanomaly 99% similar0.0001% of men, 0.0001% of women · simulated as #25403F
  • Achromatopsia 94% similar0.003% of men, 0.003% of women · simulated as #3B3B3B
  • Achromatomaly 96% similar0.001% of men, 0.001% of women · simulated as #373C3C

#283F3F contrast checker

AaThe quick brown fox jumps over the lazy dog.
11.21:1 Very good#283F3F text on white
AA normalPassAAA normalPass
AA largePassAAA largePass
AaThe quick brown fox jumps over the lazy dog.
1.87:1 Very poor#283F3F text on black
AA normalFailAAA normalFail
AA largeFailAAA largeFail

Need another background? Pick any pair in the palette generator and open the contrast panel.

Colors similar to #283F3F

Palettes with #283F3F

#283F3F in CSS

/* Emerald Forest */
.color { color: #283F3F; }
.background { background-color: #283F3F; }
.border { border: 1px solid #283F3F; }

/* Other notations */
color: rgb(40 63 63);
color: hsl(180 22% 20%);
color: oklch(0.349 0.029 195.9);

#283F3F FAQ

What color is #283F3F?

#283F3F is a dark gray. Its closest named color is Emerald Forest. It belongs to the gray color family and is a neutral color.

What is the RGB value of #283F3F?

#283F3F is rgb(40, 63, 63) in RGB, hsl(180, 22%, 20%) in HSL and cmyk(37%, 0%, 0%, 75%) in CMYK.

What is the complementary color of #283F3F?

The complementary color of #283F3F is #3F2828, which sits opposite it on the color wheel.

Which text color works on #283F3F?

White text has the best contrast on #283F3F: 11.21:1, which meets the WCAG AA requirement of 4.5:1 for normal text.

Is #283F3F a warm or cool color?

#283F3F is a neutral color.