Colour

#356BBA

#356BBA
Blue
Dark
Nearest: Cornflower blue

#356BBA is a blue with RGB values 53, 107, 186 and HSL 216°, 56%, 47%. It is a dark colour, so white text on it reaches 5.3:1 contrast (AA for normal text). The nearest named colour is Cornflower blue.

Colour values

#356BBA#356BBA

HEX#356BBA

RGBrgb(53, 107, 186)

RGB (0–1)0.2078, 0.4196, 0.7294

RGB percentages20.8%, 42%, 72.9%

HSLhsl(215.6, 55.6%, 46.9%)

HSV / HSBhsv(215.6, 71.5%, 72.9%)

CMYK71.5%, 42.5%, 0%, 27.1%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer3,500,986

CSS custom property--colour: #356BBA;

Brightness & contrast

Relative luminance0.14817WCAG 2.x, 0 is black and 1 is white

Perceived brightness107.3 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 5.3:1

Contrast with white5.3:1WCAG normal text: AA

Contrast with black3.96:1WCAG normal text: Fail

Greyscale equivalent#656565

Inverted#CA9445

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#4572BDno red cones; affects about 1% of men; ΔE 4.1 from the original

Deuteranopia#2E66B8no green cones; the most common form, about 1% of men; ΔE 2.9 from the original

Tritanopia#007D89no blue cones; rare, and affects men and women equally; ΔE 46.4 from the original

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

Contrast with white, large text5.3:1WCAG large text: AAA

Contrast with black, large text3.96:1WCAG large text: AA

Named colours

Cornflower blue · ΔE 16.7 Steel blue · ΔE 21 Dodgerblue · ΔE 21.6 Dark slateblue · ΔE 22.9 Royal blue · ΔE 25.3 Slate blue · ΔE 29.1

Nearest named CSS colourCornflower blue (#6495ED)ΔE 16.72, a distinctly different colour

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#BA8435

Analogous#35ADBA, #4235BA

Triadic#BA356B, #6BBA35

Split complementary#BA4235, #ADBA35

Tetradic#BA35AD, #BA8435, #35BA42

Tints, shades & saturation

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

Lighter +40%#CBDAF0

Lighter +30%#A3BEE5

Lighter +20%#7BA2DA

Lighter +10%#5485CE

Darker −10%#2A5492

Darker −20%#1E3D6B

Darker −30%#132743

Darker −40%#08101B

More saturated +25%#1765D8

Less saturated −25%#53719C

Channel breakdown

R53

G107

B186

Red53 (20.8%)

Green107 (42%)

Blue186 (72.9%)

Hue215.64°

Saturation (HSL)55.65%

Lightness46.86%

Dominant channelBlue

Hex per channelR 35 · G 6B · B BA

Keep nerding

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#356BBA

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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