Recognised as Colour

#0400D4

#0400D4
Blue
Dark
Nearest: Medium blue

#0400D4 is a blue with RGB values 4, 0, 212 and HSL 241°, 100%, 42%. It is a dark colour, so white text on it reaches 10.7:1 contrast (AAA for normal text). The nearest named colour is Medium blue.

Colour values

#0400D4#0400D4

HEX#0400D4

RGBrgb(4, 0, 212)

RGB (0–1)0.0157, 0, 0.8314

RGB percentages1.6%, 0%, 83.1%

HSLhsl(241.1, 100%, 41.6%)

HSV / HSBhsv(241.1, 100%, 83.1%)

CMYK98.1%, 100%, 0%, 16.9%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer262,356

CSS custom property--colour: #0400D4;

Brightness & contrast

Relative luminance0.04779WCAG 2.x, 0 is black and 1 is white

Perceived brightness71.6 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 10.74:1

Contrast with white10.74:1WCAG normal text: AAA

Contrast with black1.96:1WCAG normal text: Fail

Greyscale equivalent#101010

Inverted#FBFF2B

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#0048D9no red cones; affects about 1% of men; ΔE 34.7 from the original

Deuteranopia#0032D1no green cones; the most common form, about 1% of men; ΔE 22.2 from the original

Tritanopia#00587Cno blue cones; rare, and affects men and women equally; ΔE 102.8 from the original

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

Contrast with white, large text10.74:1WCAG large text: AAA

Contrast with black, large text1.96:1WCAG large text: Fail

Named colours

Medium blue · ΔE 3 Blue · ΔE 18.6 Blue violet · ΔE 24.9 Dark violet · ΔE 28 Dark blue · ΔE 33.1 Dark orchid · ΔE 38

Nearest named CSS colourMedium blue (#0000CD)ΔE 3.02, a close match

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#D0D400

Analogous#0066D4, #6E00D4

Triadic#D40400, #00D404

Split complementary#D46E00, #66D400

Tetradic#D40066, #D0D400, #00D46E

Tints, shades & saturation

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

Lighter +40%#A3A1FF

Lighter +30%#716EFF

Lighter +20%#3F3BFF

Lighter +10%#0D08FF

Darker −10%#0300A1

Darker −20%#02006E

Darker −30%#01003B

Darker −40%#000008

More saturated +25%#0400D4

Less saturated −25%#1E1BBA

Channel breakdown

B212

Red4 (1.6%)

Green0 (0%)

Blue212 (83.1%)

Hue241.13°

Saturation (HSL)100%

Lightness41.57%

Dominant channelBlue

Hex per channelR 04 · G 00 · B D4

Keep nerding

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

#0400D4

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

Nerdulate something else