Colour

#405A9E

#405A9E
Blue
Dark
Nearest: Dark slateblue

#405A9E is a blue with RGB values 64, 90, 158 and HSL 223°, 42%, 44%. It is a dark colour, so white text on it reaches 6.6:1 contrast (AA for normal text). The nearest named colour is Dark slateblue.

Colour values

#405A9E#405A9E

HEX#405A9E

RGBrgb(64, 90, 158)

RGB (0–1)0.251, 0.3529, 0.6196

RGB percentages25.1%, 35.3%, 62%

HSLhsl(223.4, 42.3%, 43.5%)

HSV / HSBhsv(223.4, 59.5%, 62%)

CMYK59.5%, 43%, 0%, 38%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer4,217,502

CSS custom property--colour: #405A9E;

Brightness & contrast

Relative luminance0.10871WCAG 2.x, 0 is black and 1 is white

Perceived brightness93.9 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 6.62:1

Contrast with white6.62:1WCAG normal text: AA

Contrast with black3.17:1WCAG normal text: Fail

Greyscale equivalent#595959

Inverted#BFA561

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#3C61A1no red cones; affects about 1% of men; ΔE 4.9 from the original

Deuteranopia#2F599Dno green cones; the most common form, about 1% of men; ΔE 3.4 from the original

Tritanopia#006974no blue cones; rare, and affects men and women equally; ΔE 42.4 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text6.62:1WCAG large text: AAA

Contrast with black, large text3.17:1WCAG large text: AA

Named colours

Dark slateblue · ΔE 16.7 Steel blue · ΔE 22 Cornflower blue · ΔE 24.5 Royal blue · ΔE 30.3 Slate blue · ΔE 30.7 Dodgerblue · ΔE 30.9

Nearest named CSS colourDark slateblue (#483D8B)ΔE 16.75, a distinctly different colour

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#9E8440

Analogous#40899E, #55409E

Triadic#9E405A, #5A9E40

Split complementary#9E5540, #899E40

Tetradic#9E4089, #9E8440, #409E55

Tints, shades & saturation

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

Lighter +40%#C3CDE7

Lighter +30%#9FAFD8

Lighter +20%#7B90C9

Lighter +10%#5672BB

Darker −10%#31457A

Darker −20%#233155

Darker −30%#141C31

Darker −40%#05070D

More saturated +25%#244EBA

Less saturated −25%#5C6682

Channel breakdown

R64

G90

B158

Red64 (25.1%)

Green90 (35.3%)

Blue158 (62%)

Hue223.4°

Saturation (HSL)42.34%

Lightness43.53%

Dominant channelBlue

Hex per channelR 40 · G 5A · B 9E

Keep nerding

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

#405A9E

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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