Colour

#3300A5

#3300A5
Violet
Dark
Nearest: Dark blue

#3300A5 is a violet with RGB values 51, 0, 165 and HSL 259°, 100%, 32%. It is a dark colour, so white text on it reaches 12.5:1 contrast (AAA for normal text). The nearest named colour is Dark blue.

Colour values

#3300A5#3300A5

HEX#3300A5

RGBrgb(51, 0, 165)

RGB (0–1)0.2, 0, 0.6471

RGB percentages20%, 0%, 64.7%

HSLhsl(258.5, 100%, 32.4%)

HSV / HSBhsv(258.5, 100%, 64.7%)

CMYK69.1%, 100%, 0%, 35.3%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer3,342,501

CSS custom property--colour: #3300A5;

Brightness & contrast

Relative luminance0.0342WCAG 2.x, 0 is black and 1 is white

Perceived brightness62.3 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 12.47:1

Contrast with white12.47:1WCAG normal text: AAA

Contrast with black1.68:1WCAG normal text: Fail

Greyscale equivalent#171717

Inverted#CCFF5A

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#0039A9no red cones; affects about 1% of men; ΔE 29.5 from the original

Deuteranopia#002EA3no green cones; the most common form, about 1% of men; ΔE 23.7 from the original

Tritanopia#00415Fno blue cones; rare, and affects men and women equally; ΔE 81.6 from the original

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

Contrast with white, large text12.47:1WCAG large text: AAA

Contrast with black, large text1.68:1WCAG large text: Fail

Named colours

Dark blue · ΔE 11.3 Navy · ΔE 16.2 Medium blue · ΔE 20.7 Indigo · ΔE 20.9 Blue violet · ΔE 23.6 Dark violet · ΔE 25.6

Nearest named CSS colourDark blue (#00008B)ΔE 11.34, a distinctly different colour

Hue familyviolet

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#72A500

Analogous#0020A5, #8500A5

Triadic#A53300, #00A533

Split complementary#A58500, #20A500

Tetradic#A50020, #72A500, #00A585

Tints, shades & saturation

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

Lighter +40%#9E72FF

Lighter +30%#7A3FFF

Lighter +20%#570CFF

Lighter +10%#4300D8

Darker −10%#230072

Darker −20%#13003F

Darker −30%#04000C

Darker −40%#000000

More saturated +25%#3300A5

Less saturated −25%#3B1590

Channel breakdown

R51

B165

Red51 (20%)

Green0 (0%)

Blue165 (64.7%)

Hue258.55°

Saturation (HSL)100%

Lightness32.35%

Dominant channelBlue

Hex per channelR 33 · G 00 · B A5

Keep nerding

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#3300A5

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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