Blue — #0000FF

#0000FF, primarily known as Blue, is composed of 0% red, 0% green, and 100% blue in RGB. In CMYK it is 100% cyan, 100% magenta, 0% yellow, 0% black. In HSL the hue angle is 240°, saturation 100%, and lightness 50%. The closest web-safe color is #0000FF.

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Color conversions

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Format	Value	Copy
HEX	#0000FF
RGB	rgb(0, 0, 255)
HSL	hsl(240, 100%, 50%)
HSV	hsv(240, 100%, 100%)
CMYK	cmyk(100%, 100%, 0%, 0%)
OKLCH	oklch(45.2% 0.3132 264.05)
HWB	hwb(240 0% 0%)
LAB	lab(29.6% 68.3 -112.03)
LCH	lch(29.6% 131.2 301.4)
OKLAB	oklab(45.2% -0.0325 -0.3115)
XYZ	X 18.04 Y 7.22 Z 95.03
Web Safe	#0000FF
RGB Percent	0%, 0%, 100%
Decimal	255

Format	Value	Copy
HEX	#0000FF
RGB	rgb(0, 0, 255)
HSL	hsl(240, 100%, 50%)
HSV	hsv(240, 100%, 100%)
CMYK	cmyk(100%, 100%, 0%, 0%)
OKLCH	oklch(45.2% 0.3132 264.05)
HWB	hwb(240 0% 0%)

Format	Value	Copy
LAB	lab(29.6% 68.3 -112.03)
LCH	lch(29.6% 131.2 301.4)
OKLAB	oklab(45.2% -0.0325 -0.3115)
XYZ	X 18.04 Y 7.22 Z 95.03
Web Safe	#0000FF
RGB Percent	0%, 0%, 100%
Decimal	255

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.

#2929FF

#0000D6

#4D4DFF

#0000B3

#3300FF

#0033FF

#761FF9

#065DE0

Similar named colors

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

Graphical 80’s Sky

#0000FC · ΔE 1.24

Blue Pencil

#2200FF · ΔE 1.79

Royal Blue Tang

#1600FC · ΔE 1.81

Primary Blue

#0804F9 · ΔE 3.22

Star of David

#0000F7 · ΔE 3.31

Icelandic Water

#0011FF · ΔE 3.5

Find a color by name or HEX →

Tints, shades & tones

Full Tints, Shades & Tones →

Contrast preview

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On white

Sample

8.59:1

AA normal ✓ · AA large ✓

On black

Sample

2.44:1

AA normal ✗ · AA large ✗

Color blindness preview

See on an image → Color Blindness Simulator

Protanopia

80% similar

1.3% of men, 0.02% of women

Deuteranopia

86% similar

6% of men, 0.4% of women

Tritanopia

66% similar

0.001% of population

Achromatopsia

53% similar

0.003% of population

UI preview

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

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Button

Alert

Heads up

This alert uses lighter tints for the background and a mid-tone for the border.

Progress

67% complete