Colour

#3F7CDB

#3F7CDB
Blue
Dark
Nearest: Cornflower blue

#3F7CDB is a blue with RGB values 63, 124, 219 and HSL 217°, 68%, 55%. It is a dark colour, so black text on it reaches 5.1:1 contrast (AA for normal text). The nearest named colour is Cornflower blue.

Colour values

#3F7CDB#3F7CDB

HEX#3F7CDB

RGBrgb(63, 124, 219)

RGB (0–1)0.2471, 0.4863, 0.8588

RGB percentages24.7%, 48.6%, 85.9%

HSLhsl(216.5, 68.4%, 55.3%)

HSV / HSBhsv(216.5, 71.2%, 85.9%)

CMYK71.2%, 43.4%, 0%, 14.1%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer4,160,731

CSS custom property--colour: #3F7CDB;

Brightness & contrast

Relative luminance0.20587WCAG 2.x, 0 is black and 1 is white

Perceived brightness125.2 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 5.12:1

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

Contrast with black5.12:1WCAG normal text: AA

Greyscale equivalent#767676

Inverted#C08324

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#4D85DFno red cones; affects about 1% of men; ΔE 4.9 from the original

Deuteranopia#3177D9no green cones; the most common form, about 1% of men; ΔE 2.9 from the original

Tritanopia#0092A1no blue cones; rare, and affects men and women equally; ΔE 53.8 from the original

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

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

Contrast with black, large text5.12:1WCAG large text: AAA

Named colours

Cornflower blue · ΔE 11 Dodgerblue · ΔE 11.5 Royal blue · ΔE 18.6 Medium purple · ΔE 25.3 Slate blue · ΔE 25.4 Steel blue · ΔE 27.4

Nearest named CSS colourCornflower blue (#6495ED)ΔE 11.03, a distinctly different colour

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#DB9E3F

Analogous#3FCADB, #503FDB

Triadic#DB3F7C, #7CDB3F

Split complementary#DB503F, #CADB3F

Tetradic#DB3FCA, #DB9E3F, #3FDB50

Tints, shades & saturation

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

Lighter +40%#EBF1FB

Lighter +30%#C0D4F3

Lighter +20%#95B7EB

Lighter +10%#6A99E3

Darker −10%#2462C3

Darker −20%#1C4D98

Darker −30%#14376D

Darker −40%#0C2142

More saturated +25%#2376F8

Less saturated −25%#5C82BF

Channel breakdown

R63

G124

B219

Red63 (24.7%)

Green124 (48.6%)

Blue219 (85.9%)

Hue216.54°

Saturation (HSL)68.42%

Lightness55.29%

Dominant channelBlue

Hex per channelR 3F · G 7C · B DB

Keep nerding

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

#3F7CDB

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

Nerdulate something else