Colour

#648BDC

#648BDC
Blue
Dark
Nearest: Cornflower blue

#648BDC is a blue with RGB values 100, 139, 220 and HSL 221°, 63%, 63%. It is a dark colour, so black text on it reaches 6.3:1 contrast (AA for normal text). The nearest named colour is Cornflower blue.

Colour values

#648BDC#648BDC

HEX#648BDC

RGBrgb(100, 139, 220)

RGB (0–1)0.3922, 0.5451, 0.8627

RGB percentages39.2%, 54.5%, 86.3%

HSLhsl(220.5, 63.2%, 62.7%)

HSV / HSBhsv(220.5, 54.5%, 86.3%)

CMYK54.5%, 36.8%, 0%, 13.7%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer6,589,404

CSS custom property--colour: #648BDC;

Brightness & contrast

Relative luminance0.26342WCAG 2.x, 0 is black and 1 is white

Perceived brightness140.9 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 6.27:1

Contrast with white3.35:1WCAG normal text: Fail

Contrast with black6.27:1WCAG normal text: AA

Greyscale equivalent#898989

Inverted#9B7423

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#6A92DFno red cones; affects about 1% of men; ΔE 3.7 from the original

Deuteranopia#5C87DAno green cones; the most common form, about 1% of men; ΔE 2.2 from the original

Tritanopia#1D9DA9no blue cones; rare, and affects men and women equally; ΔE 48.2 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text3.35:1WCAG large text: AA

Contrast with black, large text6.27:1WCAG large text: AAA

Named colours

Cornflower blue · ΔE 5.2 Dodgerblue · ΔE 17.9 Steel blue · ΔE 20.1 Medium purple · ΔE 27.6 Royal blue · ΔE 27.8 Deep skyblue · ΔE 31

Nearest named CSS colourCornflower blue (#6495ED)ΔE 5.23, clearly different but related

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#DCB564

Analogous#64C7DC, #7964DC

Triadic#DC648B, #8BDC64

Split complementary#DC7964, #C7DC64

Tetradic#DC64C7, #DCB564, #64DC79

Tints, shades & saturation

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

Lighter +40%#FFFFFF

Lighter +30%#E1E8F8

Lighter +20%#B7C9EF

Lighter +10%#8EAAE5

Darker −10%#3A6CD3

Darker −20%#2855B2

Darker −30%#1F4188

Darker −40%#152D5F

More saturated +25%#4C83F4

Less saturated −25%#7C93C4

Channel breakdown

R100

G139

B220

Red100 (39.2%)

Green139 (54.5%)

Blue220 (86.3%)

Hue220.5°

Saturation (HSL)63.16%

Lightness62.75%

Dominant channelBlue

Hex per channelR 64 · G 8B · B DC

Keep nerding

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#648BDC

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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