Colour

#555F79

#555F79
Blue
Dark
Nearest: Slate grey

#555F79 is a blue with RGB values 85, 95, 121 and HSL 223°, 17%, 40%. It is a dark colour, so white text on it reaches 6.4:1 contrast (AA for normal text). The nearest named colour is Slate grey.

Colour values

#555F79#555F79

HEX#555F79

RGBrgb(85, 95, 121)

RGB (0–1)0.3333, 0.3725, 0.4745

RGB percentages33.3%, 37.3%, 47.5%

HSLhsl(223.3, 17.5%, 40.4%)

HSV / HSBhsv(223.3, 29.8%, 47.5%)

CMYK29.8%, 21.5%, 0%, 52.5%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer5,595,001

CSS custom property--colour: #555F79;

Brightness & contrast

Relative luminance0.11496WCAG 2.x, 0 is black and 1 is white

Perceived brightness95.5 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 6.37:1

Contrast with white6.37:1WCAG normal text: AA

Contrast with black3.3:1WCAG normal text: Fail

Greyscale equivalent#5F5F5F

Inverted#AAA086

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#57617Ano red cones; affects about 1% of men; ΔE 1 from the original

Deuteranopia#545E78no green cones; the most common form, about 1% of men; ΔE 0.4 from the original

Tritanopia#4B6468no blue cones; rare, and affects men and women equally; ΔE 15.2 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text6.37:1WCAG large text: AAA

Contrast with black, large text3.3:1WCAG large text: AA

Named colours

Slate grey · ΔE 14.3 Dim grey · ΔE 16.6 Light slate grey · ΔE 17 Gray · ΔE 20.8 Dark slate grey · ΔE 20.9 Steel blue · ΔE 21.4

Nearest named CSS colourSlate grey (#708090)ΔE 14.35, a distinctly different colour

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#796F55

Analogous#557179, #5D5579

Triadic#79555F, #5F7955

Split complementary#795D55, #717955

Tetradic#795571, #796F55, #55795D

Tints, shades & saturation

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

Lighter +40%#C4C9D6

Lighter +30%#A6AEC1

Lighter +20%#8892AC

Lighter +10%#6A7797

Darker −10%#40475B

Darker −20%#2B303D

Darker −30%#16181F

Darker −40%#010101

More saturated +25%#3B5493

Less saturated −25%#676767

Channel breakdown

R85

G95

B121

Red85 (33.3%)

Green95 (37.3%)

Blue121 (47.5%)

Hue223.33°

Saturation (HSL)17.48%

Lightness40.39%

Dominant channelBlue

Hex per channelR 55 · G 5F · B 79

Keep nerding

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

#555F79

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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