Colour

#353F66

#353F66
Blue
Dark
Nearest: Dark slateblue

#353F66 is a blue with RGB values 53, 63, 102 and HSL 228°, 32%, 30%. It is a dark colour, so white text on it reaches 10.2:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#353F66#353F66

HEX#353F66

RGBrgb(53, 63, 102)

RGB (0–1)0.2078, 0.2471, 0.4

RGB percentages20.8%, 24.7%, 40%

HSLhsl(227.8, 31.6%, 30.4%)

HSV / HSBhsv(227.8, 48%, 40%)

CMYK48%, 38.2%, 0%, 60%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer3,489,638

CSS custom property--colour: #353F66;

Brightness & contrast

Relative luminance0.05271WCAG 2.x, 0 is black and 1 is white

Perceived brightness66 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 10.22:1

Contrast with white10.22:1WCAG normal text: AAA

Contrast with black2.05:1WCAG normal text: Fail

Greyscale equivalent#404040

Inverted#CAC099

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#314368no red cones; affects about 1% of men; ΔE 3.3 from the original

Deuteranopia#2C3F65no green cones; the most common form, about 1% of men; ΔE 2.9 from the original

Tritanopia#23474Dno blue cones; rare, and affects men and women equally; ΔE 25 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text10.22:1WCAG large text: AAA

Contrast with black, large text2.05:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 25.9 Dark slate grey · ΔE 28.4 Steel blue · ΔE 28.7 Slate grey · ΔE 30.4 Dim grey · ΔE 30.5 Light slate grey · ΔE 32.8

Nearest named CSS colourDark slateblue (#483D8B)ΔE 25.91, a distinctly different colour

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#665C35

Analogous#355766, #443566

Triadic#66353F, #3F6635

Split complementary#664435, #586635

Tetradic#663557, #665C35, #356644

Tints, shades & saturation

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

Lighter +40%#9CA5CB

Lighter +30%#7A87BA

Lighter +20%#5969A8

Lighter +10%#465488

Darker −10%#242A44

Darker −20%#121623

Darker −30%#010101

Darker −40%#000000

More saturated +25%#223479

Less saturated −25%#484A53

Channel breakdown

R53

G63

B102

Red53 (20.8%)

Green63 (24.7%)

Blue102 (40%)

Hue227.76°

Saturation (HSL)31.61%

Lightness30.39%

Dominant channelBlue

Hex per channelR 35 · G 3F · B 66

Keep nerding

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#353F66

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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