Recognised as Colour

#3766AF

#3766AF
Blue
Dark
Nearest: Steel blue

#3766AF is a blue with RGB values 55, 102, 175 and HSL 217°, 52%, 45%. It is a dark colour, so white text on it reaches 5.7:1 contrast (AA for normal text). The nearest named colour is Steel blue.

Colour values

#3766AF#3766AF

HEX#3766AF

RGBrgb(55, 102, 175)

RGB (0–1)0.2157, 0.4, 0.6863

RGB percentages21.6%, 40%, 68.6%

HSLhsl(216.5, 52.2%, 45.1%)

HSV / HSBhsv(216.5, 68.6%, 68.6%)

CMYK68.6%, 41.7%, 0%, 31.4%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer3,630,767

CSS custom property--colour: #3766AF;

Brightness & contrast

Relative luminance0.1341WCAG 2.x, 0 is black and 1 is white

Perceived brightness102.5 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 5.7:1

Contrast with white5.7:1WCAG normal text: AA

Contrast with black3.68:1WCAG normal text: Fail

Greyscale equivalent#616161

Inverted#C89950

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#446CB2no red cones; affects about 1% of men; ΔE 3.4 from the original

Deuteranopia#3161AEno green cones; the most common form, about 1% of men; ΔE 3.4 from the original

Tritanopia#007782no blue cones; rare, and affects men and women equally; ΔE 43.8 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text5.7:1WCAG large text: AAA

Contrast with black, large text3.68:1WCAG large text: AA

Named colours

Steel blue · ΔE 19.3 Cornflower blue · ΔE 19.4 Dark slateblue · ΔE 21.6 Dodgerblue · ΔE 25.4 Royal blue · ΔE 28.3 Slate blue · ΔE 31

Nearest named CSS colourSteel blue (#4682B4)ΔE 19.33, a distinctly different colour

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#AF8037

Analogous#37A2AF, #4437AF

Triadic#AF3766, #66AF37

Split complementary#AF4437, #A2AF37

Tetradic#AF37A2, #AF8037, #37AF44

Tints, shades & saturation

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

Lighter +40%#C5D5ED

Lighter +30%#9EB8E1

Lighter +20%#789CD4

Lighter +10%#5180C8

Darker −10%#2B4F88

Darker −20%#1F3961

Darker −30%#12223B

Darker −40%#060C14

More saturated +25%#1A60CC

Less saturated −25%#546C92

Channel breakdown

R55

G102

B175

Red55 (21.6%)

Green102 (40%)

Blue175 (68.6%)

Hue216.5°

Saturation (HSL)52.17%

Lightness45.1%

Dominant channelBlue

Hex per channelR 37 · G 66 · B AF

Keep nerding

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

#3766AF

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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