Colour

#0400CD

#0400CD
Blue
Dark
Nearest: Medium blue

#0400CD is a blue with RGB values 4, 0, 205 and HSL 241°, 100%, 40%. It is a dark colour, so white text on it reaches 11.1:1 contrast (AAA for normal text). The nearest named colour is Medium blue.

Colour values

#0400CD#0400CD

HEX#0400CD

RGBrgb(4, 0, 205)

RGB (0–1)0.0157, 0, 0.8039

RGB percentages1.6%, 0%, 80.4%

HSLhsl(241.2, 100%, 40.2%)

HSV / HSBhsv(241.2, 100%, 80.4%)

CMYK98%, 100%, 0%, 19.6%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer262,349

CSS custom property--colour: #0400CD;

Brightness & contrast

Relative luminance0.04434WCAG 2.x, 0 is black and 1 is white

Perceived brightness69.3 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 11.13:1

Contrast with white11.13:1WCAG normal text: AAA

Contrast with black1.89:1WCAG normal text: Fail

Greyscale equivalent#101010

Inverted#FBFF32

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#0046D2no red cones; affects about 1% of men; ΔE 34.3 from the original

Deuteranopia#0030CAno green cones; the most common form, about 1% of men; ΔE 21.6 from the original

Tritanopia#005577no blue cones; rare, and affects men and women equally; ΔE 100.8 from the original

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

Contrast with white, large text11.13:1WCAG large text: AAA

Contrast with black, large text1.89:1WCAG large text: Fail

Named colours

Medium blue · ΔE 0.2 Blue · ΔE 21.6 Blue violet · ΔE 24 Dark violet · ΔE 27.1 Dark blue · ΔE 30 Navy · ΔE 35.3

Nearest named CSS colourMedium blue (#0000CD)ΔE 0.16, indistinguishable to the eye

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#C9CD00

Analogous#0062CD, #6B00CD

Triadic#CD0400, #00CD04

Split complementary#CD6B00, #62CD00

Tetradic#CD0062, #C9CD00, #00CD6B

Tints, shades & saturation

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

Lighter +40%#9C9AFF

Lighter +30%#6A67FF

Lighter +20%#3834FF

Lighter +10%#0601FF

Darker −10%#03009A

Darker −20%#020067

Darker −30%#010034

Darker −40%#000001

More saturated +25%#0400CD

Less saturated −25%#1D1AB3

Channel breakdown

B205

Red4 (1.6%)

Green0 (0%)

Blue205 (80.4%)

Hue241.17°

Saturation (HSL)100%

Lightness40.2%

Dominant channelBlue

Hex per channelR 04 · G 00 · B CD

Keep nerding

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

#0400CD

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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