Colour

#3F77CC

#3F77CC
Blue
Dark
Nearest: Cornflower blue

#3F77CC is a blue with RGB values 63, 119, 204 and HSL 216°, 58%, 52%. It is a dark colour, so black text on it reaches 4.7:1 contrast (AA for normal text). The nearest named colour is Cornflower blue.

Colour values

#3F77CC#3F77CC

HEX#3F77CC

RGBrgb(63, 119, 204)

RGB (0–1)0.2471, 0.4667, 0.8

RGB percentages24.7%, 46.7%, 80%

HSLhsl(216.2, 58%, 52.4%)

HSV / HSBhsv(216.2, 69.1%, 80%)

CMYK69.1%, 41.7%, 0%, 20%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer4,159,436

CSS custom property--colour: #3F77CC;

Brightness & contrast

Relative luminance0.1861WCAG 2.x, 0 is black and 1 is white

Perceived brightness119.3 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 4.72:1

Contrast with white4.45:1WCAG normal text: Fail

Contrast with black4.72:1WCAG normal text: AA

Greyscale equivalent#717171

Inverted#C08833

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#4F7FCFno red cones; affects about 1% of men; ΔE 4.6 from the original

Deuteranopia#3871CAno green cones; the most common form, about 1% of men; ΔE 3.6 from the original

Tritanopia#008B97no blue cones; rare, and affects men and women equally; ΔE 49.9 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text4.45:1WCAG large text: AA

Contrast with black, large text4.72:1WCAG large text: AAA

Named colours

Cornflower blue · ΔE 11.7 Dodgerblue · ΔE 16.6 Steel blue · ΔE 22.2 Royal blue · ΔE 23 Dark slateblue · ΔE 26.5 Medium purple · ΔE 27.6

Nearest named CSS colourCornflower blue (#6495ED)ΔE 11.71, a distinctly different colour

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#CC943F

Analogous#3FBECC, #4E3FCC

Triadic#CC3F77, #77CC3F

Split complementary#CC4E3F, #BECC3F

Tetradic#CC3FBD, #CC943F, #3FCC4D

Tints, shades & saturation

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

Lighter +40%#E0E9F7

Lighter +30%#B8CDEC

Lighter +20%#90B0E1

Lighter +10%#6794D7

Darker −10%#2D5FAB

Darker −20%#234982

Darker −30%#18325A

Darker −40%#0D1C32

More saturated +25%#2171EA

Less saturated −25%#5D7DAE

Channel breakdown

R63

G119

B204

Red63 (24.7%)

Green119 (46.7%)

Blue204 (80%)

Hue216.17°

Saturation (HSL)58.02%

Lightness52.35%

Dominant channelBlue

Hex per channelR 3F · G 77 · B CC

Keep nerding

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

#3F77CC

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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