Colour

#5571AA

#5571AA
Blue
Dark
Nearest: Steel blue

#5571AA is a blue with RGB values 85, 113, 170 and HSL 220°, 33%, 50%. It is a dark colour, so white text on it reaches 4.9:1 contrast (AA for normal text). The nearest named colour is Steel blue.

Colour values

#5571AA#5571AA

HEX#5571AA

RGBrgb(85, 113, 170)

RGB (0–1)0.3333, 0.4431, 0.6667

RGB percentages33.3%, 44.3%, 66.7%

HSLhsl(220.2, 33.3%, 50%)

HSV / HSBhsv(220.2, 50%, 66.7%)

CMYK50%, 33.5%, 0%, 33.3%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer5,599,658

CSS custom property--colour: #5571AA;

Brightness & contrast

Relative luminance0.16644WCAG 2.x, 0 is black and 1 is white

Perceived brightness113.8 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 4.85:1

Contrast with white4.85:1WCAG normal text: AA

Contrast with black4.33:1WCAG normal text: Fail

Greyscale equivalent#6F6F6F

Inverted#AA8E55

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#5B76ACno red cones; affects about 1% of men; ΔE 2.8 from the original

Deuteranopia#526EA9no green cones; the most common form, about 1% of men; ΔE 1.8 from the original

Tritanopia#307D86no blue cones; rare, and affects men and women equally; ΔE 34.3 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text4.85:1WCAG large text: AAA

Contrast with black, large text4.33:1WCAG large text: AA

Named colours

Steel blue · ΔE 11.3 Cornflower blue · ΔE 21.3 Slate grey · ΔE 25 Light slate grey · ΔE 25.4 Dark slateblue · ΔE 27.5 Dodgerblue · ΔE 32.1

Nearest named CSS colourSteel blue (#4682B4)ΔE 11.34, a distinctly different colour

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#AA8E55

Analogous#559BAA, #6455AA

Triadic#AA5571, #71AA55

Split complementary#AA6455, #9BAA55

Tetradic#AA559B, #AA8E55, #55AA64

Tints, shades & saturation

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

Lighter +40%#DDE3EE

Lighter +30%#BBC6DD

Lighter +20%#99AACC

Lighter +10%#778DBB

Darker −10%#445A88

Darker −20%#334466

Darker −30%#222D44

Darker −40%#111722

More saturated +25%#3566CA

Less saturated −25%#757C8A

Channel breakdown

R85

G113

B170

Red85 (33.3%)

Green113 (44.3%)

Blue170 (66.7%)

Hue220.24°

Saturation (HSL)33.33%

Lightness50%

Dominant channelBlue

Hex per channelR 55 · G 71 · B AA

Keep nerding

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

#5571AA

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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