Colour

#566B99

#566B99
Blue
Dark
Nearest: Steel blue

#566B99 is a blue with RGB values 86, 107, 153 and HSL 221°, 28%, 47%. It is a dark colour, so white text on it reaches 5.3:1 contrast (AA for normal text). The nearest named colour is Steel blue.

Colour values

#566B99#566B99

HEX#566B99

RGBrgb(86, 107, 153)

RGB (0–1)0.3373, 0.4196, 0.6

RGB percentages33.7%, 42%, 60%

HSLhsl(221.2, 28%, 46.9%)

HSV / HSBhsv(221.2, 43.8%, 60%)

CMYK43.8%, 30.1%, 0%, 40%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer5,663,641

CSS custom property--colour: #566B99;

Brightness & contrast

Relative luminance0.14794WCAG 2.x, 0 is black and 1 is white

Perceived brightness107.7 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 5.3:1

Contrast with white5.3:1WCAG normal text: AA

Contrast with black3.96:1WCAG normal text: Fail

Greyscale equivalent#6A6A6A

Inverted#A99466

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#5B6F9Bno red cones; affects about 1% of men; ΔE 2.1 from the original

Deuteranopia#546998no green cones; the most common form, about 1% of men; ΔE 1 from the original

Tritanopia#3E757Bno blue cones; rare, and affects men and women equally; ΔE 28.2 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text5.3:1WCAG large text: AAA

Contrast with black, large text3.96:1WCAG large text: AA

Named colours

Steel blue · ΔE 12.3 Slate grey · ΔE 19.8 Light slate grey · ΔE 20.7 Cornflower blue · ΔE 27.8 Dim grey · ΔE 27.9 Gray · ΔE 29.1

Nearest named CSS colourSteel blue (#4682B4)ΔE 12.33, a distinctly different colour

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#998456

Analogous#568D99, #625699

Triadic#99566B, #6B9956

Split complementary#996256, #8D9956

Tetradic#99568D, #998456, #569962

Tints, shades & saturation

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

Lighter +40%#D4DAE7

Lighter +30%#B3BED5

Lighter +20%#93A2C2

Lighter +10%#7285B0

Darker −10%#445478

Darker −20%#313D58

Darker −30%#1F2737

Darker −40%#0D1016

More saturated +25%#3860B7

Less saturated −25%#74767B

Channel breakdown

R86

G107

B153

Red86 (33.7%)

Green107 (42%)

Blue153 (60%)

Hue221.19°

Saturation (HSL)28.03%

Lightness46.86%

Dominant channelBlue

Hex per channelR 56 · G 6B · B 99

Keep nerding

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

#566B99

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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