Colour

#40568B

#40568B
Blue
Dark
Nearest: Steel blue

#40568B is a blue with RGB values 64, 86, 139 and HSL 222°, 37%, 40%. It is a dark colour, so white text on it reaches 7.2:1 contrast (AAA for normal text). The nearest named colour is Steel blue.

Colour values

#40568B#40568B

HEX#40568B

RGBrgb(64, 86, 139)

RGB (0–1)0.251, 0.3373, 0.5451

RGB percentages25.1%, 33.7%, 54.5%

HSLhsl(222.4, 36.9%, 39.8%)

HSV / HSBhsv(222.4, 54%, 54.5%)

CMYK54%, 38.1%, 0%, 45.5%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer4,216,459

CSS custom property--colour: #40568B;

Brightness & contrast

Relative luminance0.0961WCAG 2.x, 0 is black and 1 is white

Perceived brightness88.1 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 7.19:1

Contrast with white7.19:1WCAG normal text: AAA

Contrast with black2.92:1WCAG normal text: Fail

Greyscale equivalent#555555

Inverted#BFA974

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#415B8Dno red cones; affects about 1% of men; ΔE 3.1 from the original

Deuteranopia#38548Ano green cones; the most common form, about 1% of men; ΔE 1.9 from the original

Tritanopia#1B616Ano blue cones; rare, and affects men and women equally; ΔE 33 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text7.19:1WCAG large text: AAA

Contrast with black, large text2.92:1WCAG large text: Fail

Named colours

Steel blue · ΔE 19.4 Dark slateblue · ΔE 21.7 Slate grey · ΔE 28.4 Light slate grey · ΔE 29.9 Cornflower blue · ΔE 30.2 Dim grey · ΔE 33.8

Nearest named CSS colourSteel blue (#4682B4)ΔE 19.41, a distinctly different colour

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#8B7540

Analogous#407C8B, #4F408B

Triadic#8B4056, #568B40

Split complementary#8B4F40, #7C8B40

Tetradic#8B407C, #8B7540, #408B4F

Tints, shades & saturation

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

Lighter +40%#B8C4DF

Lighter +30%#96A6CE

Lighter +20%#7389BE

Lighter +10%#506CAE

Darker −10%#304068

Darker −20%#202B45

Darker −30%#101522

Darker −40%#000000

More saturated +25%#274CA4

Less saturated −25%#596072

Channel breakdown

R64

G86

B139

Red64 (25.1%)

Green86 (33.7%)

Blue139 (54.5%)

Hue222.4°

Saturation (HSL)36.95%

Lightness39.8%

Dominant channelBlue

Hex per channelR 40 · G 56 · B 8B

Keep nerding

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

#40568B

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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