Colour

#4279CF

#4279CF
Blue
Dark
Nearest: Cornflower blue

#4279CF is a blue with RGB values 66, 121, 207 and HSL 217°, 59%, 54%. It is a dark colour, so black text on it reaches 4.9:1 contrast (AA for normal text). The nearest named colour is Cornflower blue.

Colour values

#4279CF#4279CF

HEX#4279CF

RGBrgb(66, 121, 207)

RGB (0–1)0.2588, 0.4745, 0.8118

RGB percentages25.9%, 47.5%, 81.2%

HSLhsl(216.6, 59.5%, 53.5%)

HSV / HSBhsv(216.6, 68.1%, 81.2%)

CMYK68.1%, 41.5%, 0%, 18.8%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer4,356,559

CSS custom property--colour: #4279CF;

Brightness & contrast

Relative luminance0.19338WCAG 2.x, 0 is black and 1 is white

Perceived brightness121.6 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 4.87:1

Contrast with white4.31:1WCAG normal text: Fail

Contrast with black4.87:1WCAG normal text: AA

Greyscale equivalent#747474

Inverted#BD8630

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#5181D2no red cones; affects about 1% of men; ΔE 4.6 from the original

Deuteranopia#3A74CDno green cones; the most common form, about 1% of men; ΔE 2.8 from the original

Tritanopia#008D9Ano blue cones; rare, and affects men and women equally; ΔE 50 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text4.31:1WCAG large text: AA

Contrast with black, large text4.87:1WCAG large text: AAA

Named colours

Cornflower blue · ΔE 10.9 Dodgerblue · ΔE 15.9 Steel blue · ΔE 22.6 Royal blue · ΔE 22.7 Dark slateblue · ΔE 27 Medium purple · ΔE 27.1

Nearest named CSS colourCornflower blue (#6495ED)ΔE 10.88, a distinctly different colour

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#CF9842

Analogous#42BFCF, #5242CF

Triadic#CF4279, #79CF42

Split complementary#CF5242, #BFCF42

Tetradic#CF42BF, #CF9842, #42CF52

Tints, shades & saturation

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

Lighter +40%#E5ECF8

Lighter +30%#BCD0EE

Lighter +20%#93B3E4

Lighter +10%#6B96D9

Darker −10%#2D60B1

Darker −20%#234A88

Darker −30%#183460

Darker −40%#0E1E37

More saturated +25%#2472ED

Less saturated −25%#6080B1

Channel breakdown

R66

G121

B207

Red66 (25.9%)

Green121 (47.5%)

Blue207 (81.2%)

Hue216.6°

Saturation (HSL)59.49%

Lightness53.53%

Dominant channelBlue

Hex per channelR 42 · G 79 · B CF

Keep nerding

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#4279CF

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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