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0044BB

#0044BB Once in a Blue Moon

#0044BB is a dark, vivid blue named Once in a Blue Moon. In the RGB color model it is made of 0.0% red, 26.7% green and 73.3% blue (rgb(0, 68, 187)). Its HSL value is 218° hue, 100% saturation and 37% lightness, and in CMYK it is 100% cyan, 64% magenta, 0% yellow and 27% black. #0044BB is a cool color. White text reads best on it, with a contrast ratio of 8.25:1.

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#0044BB color conversion

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RGB
HSL
HSB / HSV
HWB
CMYK
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CIELAB
CIELCh
CIELUV
OKLCH

Variations of #0044BB

Shades

Mixed with black: richer and darker.

0044BB003AA200308A002673001D5C001446000C3200051F00020D000002

Tints

Mixed with white: lighter and softer.

0044BB2159C43A6DCC5280D46A92DB82A4E29AB7E9B3C9EFCCDBF5E5EDFA

Tones

Mixed with gray: calmer and more muted.

0044BB154DB62455B1305BAC3D62A64868A1546D9B5F72956A778E757C87

Hues

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

005C6A005B7100597A0057850052960044BB313CBB4834B8592CB26824A9741B9E

Temperatures

Cooler on the left, warmer on the right.

044FC9034DC6024BC30148C10146BE0044BB174AB82650B43255B13D5AAD485EA9

#0044BB color harmonies

Complementary

The opposite hue — maximum contrast and energy.

0044BBBB7700
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Split complementary

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

0044BBBB1A00A1BB00
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Analogous

Neighbouring hues — calm, cohesive and natural.

0044BB00A1BB1A00BB
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Triadic

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

0044BBBB004444BB00
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Tetradic

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

0044BB7700BBBB770044BB00
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Square

Four hues spaced at 90° — bold and playful.

0044BBBB00A1BB770000BB1A
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#0044BB for color-blind viewers (and dogs)

How #0044BB appears with each type of color vision deficiency (Machado 2009 model) — and to your dog. Try the dog vision simulator →

  • Dog vision 98% similarHow dogs see it · simulated as #0047B9
  • Protanopia 91% similar1.3% of men, 0.02% of women · simulated as #0057BF
  • Protanomaly 94% similar1.3% of men, 0.02% of women · simulated as #0051BD
  • Deuteranopia 98% similar1.2% of men, 0.01% of women · simulated as #0047B9
  • Deuteranomaly 99% similar5% of men, 0.35% of women · simulated as #0047BA
  • Tritanopia 70% similar0.001% of men, 0.03% of women · simulated as #006479
  • Tritanomaly 88% similar0.0001% of men, 0.0001% of women · simulated as #0053A1
  • Achromatopsia 61% similar0.003% of men, 0.003% of women · simulated as #4F4F4F
  • Achromatomaly 74% similar0.001% of men, 0.001% of women · simulated as #444C76

#0044BB contrast checker

AaThe quick brown fox jumps over the lazy dog.
8.25:1 Very good#0044BB text on white
AA normalPassAAA normalPass
AA largePassAAA largePass
AaThe quick brown fox jumps over the lazy dog.
2.54:1 Very poor#0044BB 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 #0044BB

Palettes with #0044BB

#0044BB in CSS

/* Once in a Blue Moon */
.color { color: #0044BB; }
.background { background-color: #0044BB; }
.border { border: 1px solid #0044BB; }

/* Other notations */
color: rgb(0 68 187);
color: hsl(218 100% 37%);
color: oklch(0.437 0.196 261.6);

#0044BB FAQ

What color is #0044BB?

#0044BB is a dark, vivid blue. Its closest named color is Once in a Blue Moon. It belongs to the blue color family and is a cool color.

What is the RGB value of #0044BB?

#0044BB is rgb(0, 68, 187) in RGB, hsl(218, 100%, 37%) in HSL and cmyk(100%, 64%, 0%, 27%) in CMYK.

What is the complementary color of #0044BB?

The complementary color of #0044BB is #BB7700, which sits opposite it on the color wheel.

Which text color works on #0044BB?

White text has the best contrast on #0044BB: 8.25:1, which meets the WCAG AA requirement of 4.5:1 for normal text.

Is #0044BB a warm or cool color?

#0044BB is a cool color.