Colour

#3300DB

#3300DB
Blue
Dark
Nearest: Medium blue

#3300DB is a blue with RGB values 51, 0, 219 and HSL 254°, 100%, 43%. It is a dark colour, so white text on it reaches 9.7:1 contrast (AAA for normal text). The nearest named colour is Medium blue.

Colour values

#3300DB#3300DB

HEX#3300DB

RGBrgb(51, 0, 219)

RGB (0–1)0.2, 0, 0.8588

RGB percentages20%, 0%, 85.9%

HSLhsl(254, 100%, 42.9%)

HSV / HSBhsv(254, 100%, 85.9%)

CMYK76.7%, 100%, 0%, 14.1%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer3,342,555

CSS custom property--colour: #3300DB;

Brightness & contrast

Relative luminance0.05818WCAG 2.x, 0 is black and 1 is white

Perceived brightness79 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 9.71:1

Contrast with white9.71:1WCAG normal text: AAA

Contrast with black2.16:1WCAG normal text: Fail

Greyscale equivalent#1B1B1B

Inverted#CCFF24

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#004DE0no red cones; affects about 1% of men; ΔE 36.2 from the original

Deuteranopia#003AD8no green cones; the most common form, about 1% of men; ΔE 25.6 from the original

Tritanopia#005A80no blue cones; rare, and affects men and women equally; ΔE 102.9 from the original

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

Contrast with white, large text9.71:1WCAG large text: AAA

Contrast with black, large text2.16:1WCAG large text: Fail

Named colours

Medium blue · ΔE 5.9 Blue · ΔE 17.2 Blue violet · ΔE 22.5 Dark violet · ΔE 25.5 Dark blue · ΔE 35 Dark orchid · ΔE 36.4

Nearest named CSS colourMedium blue (#0000CD)ΔE 5.87, clearly different but related

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#A8DB00

Analogous#003BDB, #A000DB

Triadic#DB3300, #00DB33

Split complementary#DBA000, #3BDB00

Tetradic#DB003B, #A8DB00, #00DBA0

Tints, shades & saturation

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

Lighter +40%#BCA8FF

Lighter +30%#9575FF

Lighter +20%#6E42FF

Lighter +10%#470FFF

Darker −10%#2700A8

Darker −20%#1B0075

Darker −30%#0F0042

Darker −40%#03000F

More saturated +25%#3300DB

Less saturated −25%#421BC0

Channel breakdown

R51

B219

Red51 (20%)

Green0 (0%)

Blue219 (85.9%)

Hue253.97°

Saturation (HSL)100%

Lightness42.94%

Dominant channelBlue

Hex per channelR 33 · G 00 · B DB

Keep nerding

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#3300DB

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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