Colour

#2B0055

#2B0055
Violet
Dark
Nearest: Midnight blue

#2B0055 is a violet with RGB values 43, 0, 85 and HSL 270°, 100%, 17%. It is a dark colour, so white text on it reaches 17:1 contrast (AAA for normal text). The nearest named colour is Midnight blue.

Colour values

#2B0055#2B0055

HEX#2B0055

RGBrgb(43, 0, 85)

RGB (0–1)0.1686, 0, 0.3333

RGB percentages16.9%, 0%, 33.3%

HSLhsl(270.4, 100%, 16.7%)

HSV / HSBhsv(270.4, 100%, 33.3%)

CMYK49.4%, 100%, 0%, 66.7%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer2,818,133

CSS custom property--colour: #2B0055;

Brightness & contrast

Relative luminance0.01169WCAG 2.x, 0 is black and 1 is white

Perceived brightness37.1 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 17.02:1

Contrast with white17.02:1WCAG normal text: AAA

Contrast with black1.23:1WCAG normal text: Fail

Greyscale equivalent#0F0F0F

Inverted#D4FFAA

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#001C57no red cones; affects about 1% of men; ΔE 20.9 from the original

Deuteranopia#001B54no green cones; the most common form, about 1% of men; ΔE 21.5 from the original

Tritanopia#201C2Eno blue cones; rare, and affects men and women equally; ΔE 42.7 from the original

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

Contrast with white, large text17.02:1WCAG large text: AAA

Contrast with black, large text1.23:1WCAG large text: Fail

Named colours

Midnight blue · ΔE 12.1 Indigo · ΔE 21.3 Dark slateblue · ΔE 23.7 Rebecca purple · ΔE 24 Navy · ΔE 26 Purple · ΔE 29

Nearest named CSS colourMidnight blue (#191970)ΔE 12.14, a distinctly different colour

Hue familyviolet

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#2A5500

Analogous#000055, #550054

Triadic#552B00, #00552B

Split complementary#545500, #005501

Tetradic#550100, #2A5500, #005455

Tints, shades & saturation

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

Lighter +40%#9222FF

Lighter +30%#7800EE

Lighter +20%#5F00BB

Lighter +10%#450088

Darker −10%#110022

Darker −20%#000000

Darker −30%#000000

Darker −40%#000000

More saturated +25%#2B0055

Less saturated −25%#2B0B4A

Channel breakdown

R43

B85

Red43 (16.9%)

Green0 (0%)

Blue85 (33.3%)

Hue270.35°

Saturation (HSL)100%

Lightness16.67%

Dominant channelBlue

Hex per channelR 2B · G 00 · B 55

Keep nerding

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#2B0055

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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