Colour

#0100BB

#0100BB
Blue
Dark
Nearest: Medium blue

#0100BB is a blue with RGB values 1, 0, 187 and HSL 240°, 100%, 37%. It is a dark colour, so white text on it reaches 12.2:1 contrast (AAA for normal text). The nearest named colour is Medium blue.

Colour values

#0100BB#0100BB

HEX#0100BB

RGBrgb(1, 0, 187)

RGB (0–1)0.0039, 0, 0.7333

RGB percentages0.4%, 0%, 73.3%

HSLhsl(240.3, 100%, 36.7%)

HSV / HSBhsv(240.3, 100%, 73.3%)

CMYK99.5%, 100%, 0%, 26.7%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer65,723

CSS custom property--colour: #0100BB;

Brightness & contrast

Relative luminance0.03594WCAG 2.x, 0 is black and 1 is white

Perceived brightness63.1 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 12.22:1

Contrast with white12.22:1WCAG normal text: AAA

Contrast with black1.72:1WCAG normal text: Fail

Greyscale equivalent#0E0E0E

Inverted#FEFF44

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#003FBFno red cones; affects about 1% of men; ΔE 32.3 from the original

Deuteranopia#002AB8no green cones; the most common form, about 1% of men; ΔE 19.7 from the original

Tritanopia#004D6Cno blue cones; rare, and affects men and women equally; ΔE 94.4 from the original

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

Contrast with white, large text12.22:1WCAG large text: AAA

Contrast with black, large text1.72:1WCAG large text: Fail

Named colours

Medium blue · ΔE 8 Dark blue · ΔE 22.1 Blue violet · ΔE 23.7 Dark violet · ΔE 26.6 Navy · ΔE 27.3 Blue · ΔE 29.6

Nearest named CSS colourMedium blue (#0000CD)ΔE 8.02, clearly different but related

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#BABB00

Analogous#005DBB, #5E00BB

Triadic#BB0100, #00BB01

Split complementary#BB5E00, #5DBB00

Tetradic#BB005D, #BABB00, #00BB5E

Tints, shades & saturation

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

Lighter +40%#8988FF

Lighter +30%#5655FF

Lighter +20%#2322FF

Lighter +10%#0100EE

Darker −10%#010088

Darker −20%#000055

Darker −30%#000022

Darker −40%#000000

More saturated +25%#0100BB

Less saturated −25%#1817A4

Channel breakdown

B187

Red1 (0.4%)

Green0 (0%)

Blue187 (73.3%)

Hue240.32°

Saturation (HSL)100%

Lightness36.67%

Dominant channelBlue

Hex per channelR 01 · G 00 · B BB

Keep nerding

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#0100BB

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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