Recognised as Colour

#311DFD

#311DFD
Blue
Dark
Nearest: Blue

#311DFD is a blue with RGB values 49, 29, 253 and HSL 245°, 98%, 55%. It is a dark colour, so white text on it reaches 7.7:1 contrast (AAA for normal text). The nearest named colour is Blue.

Colour values

#311DFD#311DFD

HEX#311DFD

RGBrgb(49, 29, 253)

RGB (0–1)0.1922, 0.1137, 0.9922

RGB percentages19.2%, 11.4%, 99.2%

HSLhsl(245.4, 98.2%, 55.3%)

HSV / HSBhsv(245.4, 88.5%, 99.2%)

CMYK80.6%, 88.5%, 0%, 0.8%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer3,218,941

CSS custom property--colour: #311DFD;

Brightness & contrast

Relative luminance0.08624WCAG 2.x, 0 is black and 1 is white

Perceived brightness92.2 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 7.71:1

Contrast with white7.71:1WCAG normal text: AAA

Contrast with black2.72:1WCAG normal text: Fail

Greyscale equivalent#313131

Inverted#CEE202

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#005DFFno red cones; affects about 1% of men; ΔE 38 from the original

Deuteranopia#0047FAno green cones; the most common form, about 1% of men; ΔE 24 from the original

Tritanopia#006D96no blue cones; rare, and affects men and women equally; ΔE 111.3 from the original

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

Contrast with white, large text7.71:1WCAG large text: AAA

Contrast with black, large text2.72:1WCAG large text: Fail

Named colours

Blue · ΔE 8.7 Medium blue · ΔE 15.9 Blue violet · ΔE 28.2 Dark violet · ΔE 31.8 Dark orchid · ΔE 43.3 Dark blue · ΔE 45.3

Nearest named CSS colourBlue (#0000FF)ΔE 8.73, clearly different but related

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#E9FD1D

Analogous#1D79FD, #A11DFD

Triadic#FD311D, #1DFD31

Split complementary#FDA11D, #79FD1D

Tetradic#FD1D79, #E9FD1D, #1DFDA1

Tints, shades & saturation

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

Lighter +40%#E9E7FF

Lighter +30%#BBB5FE

Lighter +20%#8D82FE

Lighter +10%#5F50FD

Darker −10%#1602E5

Darker −20%#1102B2

Darker −30%#0C0180

Darker −40%#08014D

More saturated +25%#2F1BFF

Less saturated −25%#483AE1

Channel breakdown

R49

G29

B253

Red49 (19.2%)

Green29 (11.4%)

Blue253 (99.2%)

Hue245.36°

Saturation (HSL)98.25%

Lightness55.29%

Dominant channelBlue

Hex per channelR 31 · G 1D · B FD

Keep nerding

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

#311DFD

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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