Recognised as Colour

#331AAB

#331AAB
Blue
Dark
Nearest: Dark blue

#331AAB is a blue with RGB values 51, 26, 171 and HSL 250°, 74%, 39%. It is a dark colour, so white text on it reaches 11.2:1 contrast (AAA for normal text). The nearest named colour is Dark blue.

Colour values

#331AAB#331AAB

HEX#331AAB

RGBrgb(51, 26, 171)

RGB (0–1)0.2, 0.102, 0.6706

RGB percentages20%, 10.2%, 67.1%

HSLhsl(250.3, 73.6%, 38.6%)

HSV / HSBhsv(250.3, 84.8%, 67.1%)

CMYK70.2%, 84.8%, 0%, 32.9%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer3,349,163

CSS custom property--colour: #331AAB;

Brightness & contrast

Relative luminance0.04383WCAG 2.x, 0 is black and 1 is white

Perceived brightness67.1 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 11.19:1

Contrast with white11.19:1WCAG normal text: AAA

Contrast with black1.88:1WCAG normal text: Fail

Greyscale equivalent#2A2A2A

Inverted#CCE554

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#0041AFno red cones; affects about 1% of men; ΔE 26.4 from the original

Deuteranopia#0035A9no green cones; the most common form, about 1% of men; ΔE 19.6 from the original

Tritanopia#004965no blue cones; rare, and affects men and women equally; ΔE 78.5 from the original

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

Contrast with white, large text11.19:1WCAG large text: AAA

Contrast with black, large text1.88:1WCAG large text: Fail

Named colours

Dark blue · ΔE 10.7 Navy · ΔE 14.5 Indigo · ΔE 18.6 Blue violet · ΔE 24.9 Medium blue · ΔE 25 Dark orchid · ΔE 25.2

Nearest named CSS colourDark blue (#00008B)ΔE 10.67, a distinctly different colour

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#92AB1A

Analogous#1A49AB, #7C1AAB

Triadic#AB331A, #1AAB33

Split complementary#AB7C1A, #49AB1A

Tetradic#AB1A49, #92AB1A, #1AAB7C

Tints, shades & saturation

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

Lighter +40%#AEA0F1

Lighter +30%#8874EA

Lighter +20%#6348E3

Lighter +10%#4021D7

Darker −10%#26137F

Darker −20%#190D52

Darker −30%#0B0626

Darker −40%#000000

More saturated +25%#2301C4

Less saturated −25%#433392

Channel breakdown

R51

G26

B171

Red51 (20%)

Green26 (10.2%)

Blue171 (67.1%)

Hue250.34°

Saturation (HSL)73.6%

Lightness38.63%

Dominant channelBlue

Hex per channelR 33 · G 1A · B AB

Keep nerding

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

#331AAB

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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