Recognised as Colour

#3F00BB

#3F00BB
Violet
Dark
Nearest: Medium blue

#3F00BB is a violet with RGB values 63, 0, 187 and HSL 260°, 100%, 37%. It is a dark colour, so white text on it reaches 10.9:1 contrast (AAA for normal text). The nearest named colour is Medium blue.

Colour values

#3F00BB#3F00BB

HEX#3F00BB

RGBrgb(63, 0, 187)

RGB (0–1)0.2471, 0, 0.7333

RGB percentages24.7%, 0%, 73.3%

HSLhsl(260.2, 100%, 36.7%)

HSV / HSBhsv(260.2, 100%, 73.3%)

CMYK66.3%, 100%, 0%, 26.7%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer4,128,955

CSS custom property--colour: #3F00BB;

Brightness & contrast

Relative luminance0.04645WCAG 2.x, 0 is black and 1 is white

Perceived brightness71.9 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 10.89:1

Contrast with white10.89:1WCAG normal text: AAA

Contrast with black1.93:1WCAG normal text: Fail

Greyscale equivalent#1B1B1B

Inverted#C0FF44

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#0042BFno red cones; affects about 1% of men; ΔE 32.7 from the original

Deuteranopia#0036B8no green cones; the most common form, about 1% of men; ΔE 26.7 from the original

Tritanopia#004B6Cno blue cones; rare, and affects men and women equally; ΔE 89.8 from the original

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

Contrast with white, large text10.89:1WCAG large text: AAA

Contrast with black, large text1.93:1WCAG large text: Fail

Named colours

Medium blue · ΔE 12.3 Blue violet · ΔE 18.1 Dark blue · ΔE 20.6 Dark violet · ΔE 20.7 Navy · ΔE 25.7 Dark orchid · ΔE 26.4

Nearest named CSS colourMedium blue (#0000CD)ΔE 12.32, a distinctly different colour

Hue familyviolet

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#7CBB00

Analogous#001EBB, #9D00BB

Triadic#BB3F00, #00BB3F

Split complementary#BB9C00, #1FBB00

Tetradic#BB001E, #7CBB00, #00BB9D

Tints, shades & saturation

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

Lighter +40%#B088FF

Lighter +30%#8E55FF

Lighter +20%#6C22FF

Lighter +10%#5000EE

Darker −10%#2E0088

Darker −20%#1D0055

Darker −30%#0B0022

Darker −40%#000000

More saturated +25%#3F00BB

Less saturated −25%#4717A4

Channel breakdown

R63

B187

Red63 (24.7%)

Green0 (0%)

Blue187 (73.3%)

Hue260.21°

Saturation (HSL)100%

Lightness36.67%

Dominant channelBlue

Hex per channelR 3F · G 00 · B BB

Keep nerding

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

#3F00BB

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