Colour

#0015AB

#0015AB
Blue
Dark
Nearest: Dark blue

#0015AB is a blue with RGB values 0, 21, 171 and HSL 233°, 100%, 34%. It is a dark colour, so white text on it reaches 12.4:1 contrast (AAA for normal text). The nearest named colour is Dark blue.

Colour values

#0015AB#0015AB

HEX#0015AB

RGBrgb(0, 21, 171)

RGB (0–1)0, 0.0824, 0.6706

RGB percentages0%, 8.2%, 67.1%

HSLhsl(232.6, 100%, 33.5%)

HSV / HSBhsv(232.6, 100%, 67.1%)

CMYK100%, 87.7%, 0%, 32.9%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer5,547

CSS custom property--colour: #0015AB;

Brightness & contrast

Relative luminance0.03477WCAG 2.x, 0 is black and 1 is white

Perceived brightness59.9 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 12.39:1

Contrast with white12.39:1WCAG normal text: AAA

Contrast with black1.7:1WCAG normal text: Fail

Greyscale equivalent#1B1B1B

Inverted#FFEA54

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#003DAFno red cones; affects about 1% of men; ΔE 26 from the original

Deuteranopia#002BA9no green cones; the most common form, about 1% of men; ΔE 14.6 from the original

Tritanopia#004965no blue cones; rare, and affects men and women equally; ΔE 82.1 from the original

Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning

Contrast with white, large text12.39:1WCAG large text: AAA

Contrast with black, large text1.7:1WCAG large text: Fail

Named colours

Dark blue · ΔE 10.8 Navy · ΔE 15.6 Medium blue · ΔE 21.3 Indigo · ΔE 23.3 Blue violet · ΔE 26.9 Dark orchid · ΔE 29.9

Nearest named CSS colourDark blue (#00008B)ΔE 10.75, a distinctly different colour

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

base +30°+90°+120°+180°+210°+240°+270°+330°

Complementary#AB9600

Analogous#006AAB, #4100AB

Triadic#AB0015, #15AB00

Split complementary#AB4100, #6AAB00

Tetradic#AB006A, #AB9600, #00AB41

Tints, shades & saturation

+40%+30%+20%+10%base -10%-20%-30%-40%

Lighter +40%#7889FF

Lighter +30%#455CFF

Lighter +20%#122FFF

Lighter +10%#001BDE

Darker −10%#000F78

Darker −20%#000845

Darker −30%#000212

Darker −40%#000000

More saturated +25%#0015AB

Less saturated −25%#152596

Channel breakdown

G21

B171

Red0 (0%)

Green21 (8.2%)

Blue171 (67.1%)

Hue232.63°

Saturation (HSL)100%

Lightness33.53%

Dominant channelBlue

Hex per channelR 00 · G 15 · B AB

Keep nerding

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#0015AB

Colour values

Brightness & contrast

Colour vision & accessibility

Named colours

Colour harmonies

Tints, shades & saturation

Channel breakdown

Keep nerding

Harmonies

Lighter and darker

Similar named colours

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