Colour

#6684FF

#6684FF
Blue
Dark
Nearest: Royal blue

#6684FF is a blue with RGB values 102, 132, 255 and HSL 228°, 100%, 70%. It is a dark colour, so black text on it reaches 6.3:1 contrast (AA for normal text). The nearest named colour is Royal blue.

Colour values

#6684FF#6684FF

HEX#6684FF

RGBrgb(102, 132, 255)

RGB (0–1)0.4, 0.5176, 1

RGB percentages40%, 51.8%, 100%

HSLhsl(228.2, 100%, 70%)

HSV / HSBhsv(228.2, 60%, 100%)

CMYK60%, 48.2%, 0%, 0%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer6,718,719

CSS custom property--colour: #6684FF;

Brightness & contrast

Relative luminance0.26547WCAG 2.x, 0 is black and 1 is white

Perceived brightness144.1 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 6.31:1

Contrast with white3.33:1WCAG normal text: Fail

Contrast with black6.31:1WCAG normal text: AA

Greyscale equivalent#878787

Inverted#997B00

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#4494FFno red cones; affects about 1% of men; ΔE 15.6 from the original

Deuteranopia#2686FCno green cones; the most common form, about 1% of men; ΔE 10.6 from the original

Tritanopia#00A0B5no blue cones; rare, and affects men and women equally; ΔE 68.7 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text3.33:1WCAG large text: AA

Contrast with black, large text6.31:1WCAG large text: AAA

Named colours

Royal blue · ΔE 10.8 Dodgerblue · ΔE 15.8 Medium slateblue · ΔE 16.7 Slate blue · ΔE 18.1 Medium purple · ΔE 18.6 Cornflower blue · ΔE 22.6

Nearest named CSS colourRoyal blue (#4169E1)ΔE 10.76, a distinctly different colour

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#FFE166

Analogous#66D0FF, #9466FF

Triadic#FF6684, #84FF66

Split complementary#FF9566, #D0FF66

Tetradic#FF66D1, #FFE166, #66FF95

Tints, shades & saturation

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

Lighter +40%#FFFFFF

Lighter +30%#FFFFFF

Lighter +20%#CCD6FF

Lighter +10%#99ADFF

Darker −10%#335BFF

Darker −20%#0032FF

Darker −30%#0028CC

Darker −40%#001E99

More saturated +25%#6684FF

Less saturated −25%#7990EC

Channel breakdown

R102

G132

B255

Red102 (40%)

Green132 (51.8%)

Blue255 (100%)

Hue228.24°

Saturation (HSL)100%

Lightness70%

Dominant channelBlue

Hex per channelR 66 · G 84 · B FF

Keep nerding

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#6684FF

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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