Cobalt Blue — #0047AB

Also known as: Soulstone Blue

#0047AB, primarily known as Cobalt Blue (also called Soulstone Blue), is composed of 0% red, 28% green, and 67% blue in RGB. In CMYK it is 100% cyan, 58% magenta, 0% yellow, 33% black. In HSL the hue angle is 215°, saturation 100%, and lightness 34%. The closest web-safe color is #003399.

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Color conversions

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Format	Value	Copy
HEX	#0047AB
RGB	rgb(0, 71, 171)
HSL	hsl(215.1, 100%, 33.5%)
HSV	hsv(215.1, 100%, 67.1%)
CMYK	cmyk(100%, 58.5%, 0%, 32.9%)
OKLCH	oklch(42.84% 0.172 259.7)
HWB	hwb(215.1 0% 32.9%)
LAB	lab(31.8% 14.43 -59.89)
LCH	lch(31.8% 61.6 283.5)
OKLAB	oklab(42.84% -0.0308 -0.1692)
XYZ	X 9.6 Y 7.45 Z 39.45
Web Safe	#003399
RGB Percent	0%, 27.8%, 67.1%
Decimal	18347

Format	Value	Copy
HEX	#0047AB
RGB	rgb(0, 71, 171)
HSL	hsl(215.1, 100%, 33.5%)
HSV	hsv(215.1, 100%, 67.1%)
CMYK	cmyk(100%, 58.5%, 0%, 32.9%)
OKLCH	oklch(42.84% 0.172 259.7)
HWB	hwb(215.1 0% 32.9%)

Format	Value	Copy
LAB	lab(31.8% 14.43 -59.89)
LCH	lch(31.8% 61.6 283.5)
OKLAB	oklab(42.84% -0.0308 -0.1692)
XYZ	X 9.6 Y 7.45 Z 39.45
Web Safe	#003399
RGB Percent	0%, 27.8%, 67.1%
Decimal	18347

Color harmonies

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Alternative colors

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

#0058D4

#003682

#0067F7

#00275E

#0025AB

#0069AB

#0508C0

#04748E

Similar named colors

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

Indian Peafowl

#0044AA · ΔE 2.06

Blizzy Blueberry

#1151B4 · ΔE 4.51

Sapphire

#0F52BA · ΔE 4.83

The Blues Brothers

#214DAA · ΔE 5.4

Aarhusian Sky

#1150AF · ΔE 5.42

Amalfitan Azure

#033B9A · ΔE 5.67

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Tints, shades & tones

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Contrast preview

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On white

Sample

8.44:1

AA normal ✓ · AA large ✓

On black

Sample

2.49:1

AA normal ✗ · AA large ✗

Color blindness preview

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Protanopia

97% similar

1.3% of men, 0.02% of women

Deuteranopia

99% similar

6% of men, 0.4% of women

Tritanopia

86% similar

0.001% of population

Achromatopsia

72% 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