Colour

#3319B3

#3319B3
Blue
Dark
Nearest: Dark blue

#3319B3 is a blue with RGB values 51, 25, 179 and HSL 250°, 75%, 40%. It is a dark colour, so white text on it reaches 10.9:1 contrast (AAA for normal text). The nearest named colour is Dark blue.

Colour values

#3319B3#3319B3

HEX#3319B3

RGBrgb(51, 25, 179)

RGB (0–1)0.2, 0.098, 0.702

RGB percentages20%, 9.8%, 70.2%

HSLhsl(250.1, 75.5%, 40%)

HSV / HSBhsv(250.1, 86%, 70.2%)

CMYK71.5%, 86%, 0%, 29.8%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer3,348,915

CSS custom property--colour: #3319B3;

Brightness & contrast

Relative luminance0.04654WCAG 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 10.88:1

Contrast with white10.88:1WCAG normal text: AAA

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

Greyscale equivalent#2A2A2A

Inverted#CCE64C

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#0043B7no red cones; affects about 1% of men; ΔE 27.5 from the original

Deuteranopia#0036B0no green cones; the most common form, about 1% of men; ΔE 20.5 from the original

Tritanopia#004C6Ano blue cones; rare, and affects men and women equally; ΔE 81.9 from the original

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

Contrast with white, large text10.88:1WCAG large text: AAA

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

Named colours

Dark blue · ΔE 13.4 Navy · ΔE 17.9 Medium blue · ΔE 20.7 Blue violet · ΔE 22.2 Indigo · ΔE 22.4 Dark orchid · ΔE 25.1

Nearest named CSS colourDark blue (#00008B)ΔE 13.38, a distinctly different colour

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#99B319

Analogous#194CB3, #8019B3

Triadic#B33319, #19B333

Split complementary#B38019, #4CB319

Tetradic#B3194C, #99B319, #19B380

Tints, shades & saturation

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

Lighter +40%#B3A6F3

Lighter +30%#8C79EC

Lighter +20%#664CE6

Lighter +10%#401FE0

Darker −10%#261386

Darker −20%#1A0C5A

Darker −30%#0D062D

Darker −40%#000000

More saturated +25%#2200CC

Less saturated −25%#44339A

Channel breakdown

R51

G25

B179

Red51 (20%)

Green25 (9.8%)

Blue179 (70.2%)

Hue250.13°

Saturation (HSL)75.49%

Lightness40%

Dominant channelBlue

Hex per channelR 33 · G 19 · B B3

Keep nerding

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

#3319B3

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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