Recognised as Colour

#5151FF

#5151FF
Blue
Dark
Nearest: Blue violet

#5151FF is a blue with RGB values 81, 81, 255 and HSL 240°, 100%, 66%. It is a dark colour, so white text on it reaches 5.3:1 contrast (AA for normal text). The nearest named colour is Blue violet.

Colour values

#5151FF#5151FF

HEX#5151FF

RGBrgb(81, 81, 255)

RGB (0–1)0.3176, 0.3176, 1

RGB percentages31.8%, 31.8%, 100%

HSLhsl(240, 100%, 65.9%)

HSV / HSBhsv(240, 68.2%, 100%)

CMYK68.2%, 68.2%, 0%, 0%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer5,329,407

CSS custom property--colour: #5151FF;

Brightness & contrast

Relative luminance0.14854WCAG 2.x, 0 is black and 1 is white

Perceived brightness115 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 5.29:1

Contrast with white5.29:1WCAG normal text: AA

Contrast with black3.97:1WCAG normal text: Fail

Greyscale equivalent#5E5E5E

Inverted#AEAE00

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#0074FFno red cones; affects about 1% of men; ΔE 29 from the original

Deuteranopia#0063FCno green cones; the most common form, about 1% of men; ΔE 17.5 from the original

Tritanopia#0081A2no blue cones; rare, and affects men and women equally; ΔE 92.7 from the original

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

Contrast with white, large text5.29:1WCAG large text: AAA

Contrast with black, large text3.97:1WCAG large text: AA

Named colours

Blue violet · ΔE 20.6 Medium slateblue · ΔE 24.7 Medium blue · ΔE 25.6 Dark orchid · ΔE 28.7 Dark violet · ΔE 28.7 Slate blue · ΔE 32.9

Nearest named CSS colourBlue violet (#8A2BE2)ΔE 20.58, a distinctly different colour

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#FFFF51

Analogous#51A8FF, #A851FF

Triadic#FF5151, #51FF51

Split complementary#FFA851, #A8FF51

Tetradic#FF51A8, #FFFF51, #51FFA8

Tints, shades & saturation

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

Lighter +40%#FFFFFF

Lighter +30%#EAEAFF

Lighter +20%#B7B7FF

Lighter +10%#8484FF

Darker −10%#1E1EFF

Darker −20%#0000EA

Darker −30%#0000B7

Darker −40%#000084

More saturated +25%#5151FF

Less saturated −25%#6767E9

Channel breakdown

R81

G81

B255

Red81 (31.8%)

Green81 (31.8%)

Blue255 (100%)

Hue240°

Saturation (HSL)100%

Lightness65.88%

Dominant channelBlue

Hex per channelR 51 · G 51 · B FF

Keep nerding

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

#5151FF

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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