Colour

#0000C9

#0000C9
Blue
Dark
Nearest: Medium blue

#0000C9 is a blue with RGB values 0, 0, 201 and HSL 240°, 100%, 39%. It is a dark colour, so white text on it reaches 11.4:1 contrast (AAA for normal text). The nearest named colour is Medium blue.

Colour values

#0000C9#0000C9

HEX#0000C9

RGBrgb(0, 0, 201)

RGB (0–1)0, 0, 0.7882

RGB percentages0%, 0%, 78.8%

HSLhsl(240, 100%, 39.4%)

HSV / HSBhsv(240, 100%, 78.8%)

CMYK100%, 100%, 0%, 21.2%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer201

CSS custom property--colour: #0000C9;

Brightness & contrast

Relative luminance0.04217WCAG 2.x, 0 is black and 1 is white

Perceived brightness67.9 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 11.39:1

Contrast with white11.39:1WCAG normal text: AAA

Contrast with black1.84:1WCAG normal text: Fail

Greyscale equivalent#0F0F0F

Inverted#FFFF36

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#0044CEno red cones; affects about 1% of men; ΔE 33.4 from the original

Deuteranopia#002EC6no green cones; the most common form, about 1% of men; ΔE 20.8 from the original

Tritanopia#005375no blue cones; rare, and affects men and women equally; ΔE 99 from the original

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

Contrast with white, large text11.39:1WCAG large text: AAA

Contrast with black, large text1.84:1WCAG large text: Fail

Named colours

Medium blue · ΔE 1.8 Blue · ΔE 23.3 Blue violet · ΔE 23.8 Dark violet · ΔE 26.9 Dark blue · ΔE 28.3 Navy · ΔE 33.6

Nearest named CSS colourMedium blue (#0000CD)ΔE 1.77, below the just-noticeable difference

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#C9C900

Analogous#0065C9, #6500C9

Triadic#C90000, #00C900

Split complementary#C96500, #65C900

Tetradic#C90065, #C9C900, #00C965

Tints, shades & saturation

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

Lighter +40%#9696FF

Lighter +30%#6363FF

Lighter +20%#3030FF

Lighter +10%#0000FC

Darker −10%#000096

Darker −20%#000063

Darker −30%#000030

Darker −40%#000000

More saturated +25%#0000C9

Less saturated −25%#1919B0

Channel breakdown

B201

Red0 (0%)

Green0 (0%)

Blue201 (78.8%)

Hue240°

Saturation (HSL)100%

Lightness39.41%

Dominant channelBlue

Hex per channelR 00 · G 00 · B C9

Keep nerding

Every link below is a page Nerdulator can generate from what it already knows about this value.

#0000C9

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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