Colour

#2B0551

#2B0551
Violet
Dark
Nearest: Midnight blue

#2B0551 is a violet with RGB values 43, 5, 81 and HSL 270°, 88%, 17%. It is a dark colour, so white text on it reaches 16.9:1 contrast (AAA for normal text). The nearest named colour is Midnight blue.

Colour values

#2B0551#2B0551

HEX#2B0551

RGBrgb(43, 5, 81)

RGB (0–1)0.1686, 0.0196, 0.3176

RGB percentages16.9%, 2%, 31.8%

HSLhsl(270, 88.4%, 16.9%)

HSV / HSBhsv(270, 93.8%, 31.8%)

CMYK46.9%, 93.8%, 0%, 68.2%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer2,819,409

CSS custom property--colour: #2B0551;

Brightness & contrast

Relative luminance0.01216WCAG 2.x, 0 is black and 1 is white

Perceived brightness36.3 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 16.89:1

Contrast with white16.89:1WCAG normal text: AAA

Contrast with black1.24:1WCAG normal text: Fail

Greyscale equivalent#131313

Inverted#D4FAAE

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#001D53no red cones; affects about 1% of men; ΔE 19.9 from the original

Deuteranopia#001C50no green cones; the most common form, about 1% of men; ΔE 20.6 from the original

Tritanopia#211C2Dno blue cones; rare, and affects men and women equally; ΔE 38.4 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text16.89:1WCAG large text: AAA

Contrast with black, large text1.24:1WCAG large text: Fail

Named colours

Midnight blue · ΔE 13.5 Dark slateblue · ΔE 22.3 Indigo · ΔE 25.5 Rebecca purple · ΔE 25.7 Navy · ΔE 30.4 Purple · ΔE 31.1

Nearest named CSS colourMidnight blue (#191970)ΔE 13.53, a distinctly different colour

Hue familyviolet

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#2B5105

Analogous#050551, #510551

Triadic#512B05, #05512B

Split complementary#515105, #055105

Tetradic#510505, #2B5105, #055151

Tints, shades & saturation

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

Lighter +40%#9130F2

Lighter +30%#770EE1

Lighter +20%#5E0BB1

Lighter +10%#450881

Darker −10%#110221

Darker −20%#000000

Darker −30%#000000

Darker −40%#000000

More saturated +25%#2B0056

Less saturated −25%#2B1046

Channel breakdown

R43

B81

Red43 (16.9%)

Green5 (2%)

Blue81 (31.8%)

Hue270°

Saturation (HSL)88.37%

Lightness16.86%

Dominant channelBlue

Hex per channelR 2B · G 05 · B 51

Keep nerding

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#2B0551

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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