Dark Blue — #00008B

Also known as: Darkblue, Yves Klein Blue

#00008B, primarily known as Dark Blue (also called Darkblue, Yves Klein Blue), is composed of 0% red, 0% green, and 55% blue in RGB. In CMYK it is 100% cyan, 100% magenta, 0% yellow, 45% black. In HSL the hue angle is 240°, saturation 100%, and lightness 27%. The closest web-safe color is #000099.

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Color conversions

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Format	Value	Copy
HEX	#00008B
RGB	rgb(0, 0, 139)
HSL	hsl(240, 100%, 27.3%)
HSV	hsv(240, 100%, 54.5%)
CMYK	cmyk(100%, 100%, 0%, 45.5%)
OKLCH	oklch(28.78% 0.1994 264.05)
HWB	hwb(240 0% 45.5%)
LAB	lab(13% 43.49 -71.34)
LCH	lch(13% 83.5 301.4)
OKLAB	oklab(28.78% -0.0207 -0.1984)
XYZ	X 4.66 Y 1.86 Z 24.54
Web Safe	#000099
RGB Percent	0%, 0%, 54.5%
Decimal	139

Format	Value	Copy
HEX	#00008B
RGB	rgb(0, 0, 139)
HSL	hsl(240, 100%, 27.3%)
HSV	hsv(240, 100%, 54.5%)
CMYK	cmyk(100%, 100%, 0%, 45.5%)
OKLCH	oklch(28.78% 0.1994 264.05)
HWB	hwb(240 0% 45.5%)

Format	Value	Copy
LAB	lab(13% 43.49 -71.34)
LCH	lch(13% 83.5 301.4)
OKLAB	oklab(28.78% -0.0207 -0.1984)
XYZ	X 4.66 Y 1.86 Z 24.54
Web Safe	#000099
RGB Percent	0%, 0%, 54.5%
Decimal	139

Color harmonies

Harmony swatches keep the same saturation and lightness as the base color.

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Complementary

Analogous

Triadic

Split-complementary

Tetradic

Square

Alternative colors

Nearby variations by nudging hue and lightness. Click a swatch to open that color.

#0000B4

#000062

#0000D7

#00003F

#1C008B

#001C8B

#4304A0

#032E6F

Similar named colors

Nearest matches from our 30,000-name dataset (CIELAB ΔE). Click a swatch to open that color.

Midnight in Tokyo

#000088 · ΔE 1.39

Blue Trust

#120A8F · ΔE 3.8

Dramatic Blue

#240093 · ΔE 4.49

Orbital Kingdom

#220088 · ΔE 5.02

Navy Blue

#000080 · ΔE 5.12

Space Exploration

#001199 · ΔE 5.28

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Tints, shades & tones

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Contrast preview

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On white

Sample

15.30:1

AA normal ✓ · AA large ✓

On black

Sample

1.37:1

AA normal ✗ · AA large ✗

Color blindness preview

See on an image → Color Blindness Simulator

Protanopia

90% similar

1.3% of men, 0.02% of women

Deuteranopia

93% similar

6% of men, 0.4% of women

Tritanopia

82% similar

0.001% of population

Achromatopsia

74% similar

0.003% of population

UI preview

Simplified components using a Tailwind-style scale generated from this color.

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Alert

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Progress

67% complete