Colour

#0101FF

#0101FF
Blue
Dark
Nearest: Blue

#0101FF is a blue with RGB values 1, 1, 255 and HSL 240°, 100%, 50%. It is a dark colour, so white text on it reaches 8.6:1 contrast (AAA for normal text). The nearest named colour is Blue.

Colour values

#0101FF#0101FF

HEX#0101FF

RGBrgb(1, 1, 255)

RGB (0–1)0.0039, 0.0039, 1

RGB percentages0.4%, 0.4%, 100%

HSLhsl(240, 100%, 50.2%)

HSV / HSBhsv(240, 99.6%, 100%)

CMYK99.6%, 99.6%, 0%, 0%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer66,047

CSS custom property--colour: #0101FF;

Brightness & contrast

Relative luminance0.07248WCAG 2.x, 0 is black and 1 is white

Perceived brightness86.1 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 8.57:1

Contrast with white8.57:1WCAG normal text: AAA

Contrast with black2.45:1WCAG normal text: Fail

Greyscale equivalent#131313

Inverted#FEFE00

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#0059FFno red cones; affects about 1% of men; ΔE 43 from the original

Deuteranopia#003EFBno green cones; the most common form, about 1% of men; ΔE 25.4 from the original

Tritanopia#006B96no blue cones; rare, and affects men and women equally; ΔE 117.9 from the original

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

Contrast with white, large text8.57:1WCAG large text: AAA

Contrast with black, large text2.45:1WCAG large text: Fail

Named colours

Blue · ΔE 0.2 Medium blue · ΔE 21.4 Blue violet · ΔE 35.6 Dark violet · ΔE 38.2 Dark orchid · ΔE 50.8 Dark blue · ΔE 51.5

Nearest named CSS colourBlue (#0000FF)ΔE 0.19, indistinguishable to the eye

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#FFFF01

Analogous#0180FF, #8001FF

Triadic#FF0101, #01FF01

Split complementary#FF8001, #80FF01

Tetradic#FF0180, #FFFF01, #01FF80

Tints, shades & saturation

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

Lighter +40%#CDCDFF

Lighter +30%#9A9AFF

Lighter +20%#6767FF

Lighter +10%#3434FF

Darker −10%#0000CD

Darker −20%#00009A

Darker −30%#000067

Darker −40%#000034

More saturated +25%#0101FF

Less saturated −25%#2121DF

Channel breakdown

B255

Red1 (0.4%)

Green1 (0.4%)

Blue255 (100%)

Hue240°

Saturation (HSL)100%

Lightness50.2%

Dominant channelBlue

Hex per channelR 01 · G 01 · B FF

Keep nerding

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

#0101FF

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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