Recognised as Colour

#40647D

#40647D
Blue
Dark
Nearest: Slate grey

#40647D is a blue with RGB values 64, 100, 125 and HSL 205°, 32%, 37%. It is a dark colour, so white text on it reaches 6.3:1 contrast (AA for normal text). The nearest named colour is Slate grey.

Colour values

#40647D#40647D

HEX#40647D

RGBrgb(64, 100, 125)

RGB (0–1)0.251, 0.3922, 0.4902

RGB percentages25.1%, 39.2%, 49%

HSLhsl(204.6, 32.3%, 37.1%)

HSV / HSBhsv(204.6, 48.8%, 49%)

CMYK48.8%, 20%, 0%, 51%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer4,220,029

CSS custom property--colour: #40647D;

Brightness & contrast

Relative luminance0.11685WCAG 2.x, 0 is black and 1 is white

Perceived brightness94.2 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 6.29:1

Contrast with white6.29:1WCAG normal text: AA

Contrast with black3.34:1WCAG normal text: Fail

Greyscale equivalent#5E5E5E

Inverted#BF9B82

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#59647Eno red cones; affects about 1% of men; ΔE 8.2 from the original

Deuteranopia#515D7Dno green cones; the most common form, about 1% of men; ΔE 9.4 from the original

Tritanopia#246A6Cno blue cones; rare, and affects men and women equally; ΔE 18.4 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text6.29:1WCAG large text: AAA

Contrast with black, large text3.34:1WCAG large text: AA

Named colours

Slate grey · ΔE 14.6 Light slate grey · ΔE 17 Dark slate grey · ΔE 18.2 Steel blue · ΔE 18.5 Dim grey · ΔE 19.2 Gray · ΔE 22.8

Nearest named CSS colourSlate grey (#708090)ΔE 14.6, a distinctly different colour

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#7D5940

Analogous#407D78, #40457D

Triadic#7D4064, #647D40

Split complementary#7D4045, #7D7840

Tetradic#78407D, #7D5940, #457D40

Tints, shades & saturation

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

Lighter +40%#B2C8D7

Lighter +30%#90B0C6

Lighter +20%#6E98B5

Lighter +10%#517F9F

Darker −10%#2F495B

Darker −20%#1D2E3A

Darker −30%#0C1318

Darker −40%#000000

More saturated +25%#286895

Less saturated −25%#586065

Channel breakdown

R64

G100

B125

Red64 (25.1%)

Green100 (39.2%)

Blue125 (49%)

Hue204.59°

Saturation (HSL)32.28%

Lightness37.06%

Dominant channelBlue

Hex per channelR 40 · G 64 · B 7D

Keep nerding

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

#40647D

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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