Colour

#331AB2

#331AB2
Blue
Dark
Nearest: Dark blue

#331AB2 is a blue with RGB values 51, 26, 178 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

#331AB2#331AB2

HEX#331AB2

RGBrgb(51, 26, 178)

RGB (0–1)0.2, 0.102, 0.698

RGB percentages20%, 10.2%, 69.8%

HSLhsl(249.9, 74.5%, 40%)

HSV / HSBhsv(249.9, 85.4%, 69.8%)

CMYK71.3%, 85.4%, 0%, 30.2%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer3,349,170

CSS custom property--colour: #331AB2;

Brightness & contrast

Relative luminance0.04657WCAG 2.x, 0 is black and 1 is white

Perceived brightness69.2 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 10.87:1

Contrast with white10.87:1WCAG normal text: AAA

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

Greyscale equivalent#2A2A2A

Inverted#CCE54D

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#0043B6no red cones; affects about 1% of men; ΔE 27.1 from the original

Deuteranopia#0036AFno green cones; the most common form, about 1% of men; ΔE 20.1 from the original

Tritanopia#004C69no blue cones; rare, and affects men and women equally; ΔE 81.7 from the original

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

Contrast with white, large text10.87:1WCAG large text: AAA

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

Named colours

Dark blue · ΔE 12.9 Navy · ΔE 17.3 Medium blue · ΔE 21.6 Indigo · ΔE 21.7 Blue violet · ΔE 22.6 Dark orchid · ΔE 25.1

Nearest named CSS colourDark blue (#00008B)ΔE 12.89, a distinctly different colour

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#99B21A

Analogous#1A4DB2, #7F1AB2

Triadic#B2331A, #1AB233

Split complementary#B27F1A, #4DB21A

Tetradic#B21A4D, #99B21A, #1AB27F

Tints, shades & saturation

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

Lighter +40%#B3A6F2

Lighter +30%#8C79EC

Lighter +20%#664DE5

Lighter +10%#4021DF

Darker −10%#261386

Darker −20%#190D59

Darker −30%#0D072D

Darker −40%#000000

More saturated +25%#2200CC

Less saturated −25%#443399

Channel breakdown

R51

G26

B178

Red51 (20%)

Green26 (10.2%)

Blue178 (69.8%)

Hue249.87°

Saturation (HSL)74.51%

Lightness40%

Dominant channelBlue

Hex per channelR 33 · G 1A · B B2

Keep nerding

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

#331AB2

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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