Colour

#355DA4

#355DA4
Blue
Dark
Nearest: Dark slateblue

#355DA4 is a blue with RGB values 53, 93, 164 and HSL 218°, 51%, 43%. It is a dark colour, so white text on it reaches 6.5:1 contrast (AA for normal text). The nearest named colour is Dark slateblue.

Colour values

#355DA4#355DA4

HEX#355DA4

RGBrgb(53, 93, 164)

RGB (0–1)0.2078, 0.3647, 0.6431

RGB percentages20.8%, 36.5%, 64.3%

HSLhsl(218.4, 51.2%, 42.5%)

HSV / HSBhsv(218.4, 67.7%, 64.3%)

CMYK67.7%, 43.3%, 0%, 35.7%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer3,497,380

CSS custom property--colour: #355DA4;

Brightness & contrast

Relative luminance0.11266WCAG 2.x, 0 is black and 1 is white

Perceived brightness94.8 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 6.46:1

Contrast with white6.46:1WCAG normal text: AA

Contrast with black3.25:1WCAG normal text: Fail

Greyscale equivalent#5A5A5A

Inverted#CAA25B

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#3C64A7no red cones; affects about 1% of men; ΔE 4 from the original

Deuteranopia#295AA3no green cones; the most common form, about 1% of men; ΔE 2.2 from the original

Tritanopia#006D78no blue cones; rare, and affects men and women equally; ΔE 43 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text6.46:1WCAG large text: AAA

Contrast with black, large text3.25:1WCAG large text: AA

Named colours

Dark slateblue · ΔE 18.6 Steel blue · ΔE 21.4 Cornflower blue · ΔE 22.9 Dodgerblue · ΔE 28.5 Royal blue · ΔE 29.1 Slate blue · ΔE 30.7

Nearest named CSS colourDark slateblue (#483D8B)ΔE 18.57, a distinctly different colour

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#A47C35

Analogous#3595A4, #4435A4

Triadic#A4355D, #5DA435

Split complementary#A44535, #95A435

Tetradic#A43595, #A47C35, #35A445

Tints, shades & saturation

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

Lighter +40%#BCCCE9

Lighter +30%#95AFDD

Lighter +20%#6F92D0

Lighter +10%#4875C4

Darker −10%#29477D

Darker −20%#1C3157

Darker −30%#101B30

Darker −40%#03060A

More saturated +25%#1A55BF

Less saturated −25%#506589

Channel breakdown

R53

G93

B164

Red53 (20.8%)

Green93 (36.5%)

Blue164 (64.3%)

Hue218.38°

Saturation (HSL)51.15%

Lightness42.55%

Dominant channelBlue

Hex per channelR 35 · G 5D · B A4

Keep nerding

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

#355DA4

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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