Colour

#0403CB

#0403CB
Blue
Dark
Nearest: Medium blue

#0403CB is a blue with RGB values 4, 3, 203 and HSL 240°, 97%, 40%. It is a dark colour, so white text on it reaches 11.2:1 contrast (AAA for normal text). The nearest named colour is Medium blue.

Colour values

#0403CB#0403CB

HEX#0403CB

RGBrgb(4, 3, 203)

RGB (0–1)0.0157, 0.0118, 0.7961

RGB percentages1.6%, 1.2%, 79.6%

HSLhsl(240.3, 97.1%, 40.4%)

HSV / HSBhsv(240.3, 98.5%, 79.6%)

CMYK98%, 98.5%, 0%, 20.4%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer263,115

CSS custom property--colour: #0403CB;

Brightness & contrast

Relative luminance0.04403WCAG 2.x, 0 is black and 1 is white

Perceived brightness68.6 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 11.17:1

Contrast with white11.17:1WCAG normal text: AAA

Contrast with black1.88:1WCAG normal text: Fail

Greyscale equivalent#121212

Inverted#FBFC34

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#0045D0no red cones; affects about 1% of men; ΔE 33.1 from the original

Deuteranopia#0030C8no green cones; the most common form, about 1% of men; ΔE 21.1 from the original

Tritanopia#005476no blue cones; rare, and affects men and women equally; ΔE 99.2 from the original

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

Contrast with white, large text11.17:1WCAG large text: AAA

Contrast with black, large text1.88:1WCAG large text: Fail

Named colours

Medium blue · ΔE 1.6 Blue · ΔE 23.1 Blue violet · ΔE 23.5 Dark violet · ΔE 26.8 Dark blue · ΔE 28.6 Navy · ΔE 33.9

Nearest named CSS colourMedium blue (#0000CD)ΔE 1.59, below the just-noticeable difference

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#CACB03

Analogous#0366CB, #6803CB

Triadic#CB0403, #03CB04

Split complementary#CB6803, #66CB03

Tetradic#CB0366, #CACB03, #03CB68

Tints, shades & saturation

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

Lighter +40%#9D9CFE

Lighter +30%#6B6AFD

Lighter +20%#3938FC

Lighter +10%#0706FB

Darker −10%#030299

Darker −20%#020266

Darker −30%#010134

Darker −40%#000002

More saturated +25%#0100CE

Less saturated −25%#1D1DB1

Channel breakdown

B203

Red4 (1.6%)

Green3 (1.2%)

Blue203 (79.6%)

Hue240.3°

Saturation (HSL)97.09%

Lightness40.39%

Dominant channelBlue

Hex per channelR 04 · G 03 · B CB

Keep nerding

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

#0403CB

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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