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Recognised as Colour

#576DAF

  • #576DAF
  • Blue
  • Dark
  • Nearest: Steel blue

#576DAF is a blue with RGB values 87, 109, 175 and HSL 225°, 35%, 51%. It is a dark colour, so white text on it reaches 5:1 contrast (AA for normal text). The nearest named colour is Steel blue.

Colour values

#576DAF#576DAF
HEX#576DAF
RGBrgb(87, 109, 175)
RGB (0–1)0.3412, 0.4275, 0.6863
RGB percentages34.1%, 42.7%, 68.6%
HSLhsl(225, 35.5%, 51.4%)
HSV / HSBhsv(225, 50.3%, 68.6%)
CMYK50.3%, 37.7%, 0%, 31.4%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer5,729,711
CSS custom property--colour: #576DAF;

Brightness & contrast

Relative luminance0.16059WCAG 2.x, 0 is black and 1 is white
Perceived brightness112.8 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 4.99:1
Contrast with white4.99:1WCAG normal text: AA
Contrast with black4.21:1WCAG normal text: Fail
Greyscale equivalent#6D6D6D
Inverted#A89250

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#5474B2no red cones; affects about 1% of men; ΔE 4.7 from the original
Deuteranopia#4A6CAEno green cones; the most common form, about 1% of men; ΔE 3.1 from the original
Tritanopia#317B85no blue cones; rare, and affects men and women equally; ΔE 39.5 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text4.99:1WCAG large text: AAA
Contrast with black, large text4.21:1WCAG large text: AA

Named colours

Steel blue · ΔE 16.7Cornflower blue · ΔE 18.9Dark slateblue · ΔE 22.8Dodgerblue · ΔE 28.5Medium purple · ΔE 30Slate grey · ΔE 30.6
Nearest named CSS colourSteel blue (#4682B4)ΔE 16.68, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#AF9957
Analogous#5799AF, #6D57AF
Triadic#AF576D, #6DAF57
Split complementary#AF6D57, #99AF57
Tetradic#AF5799, #AF9957, #57AF6D

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#E1E5F1
Lighter +30%#BFC7E0
Lighter +20%#9CA9D0
Lighter +10%#7A8BBF
Darker −10%#44578F
Darker −20%#34426C
Darker −30%#232D4A
Darker −40%#131827
More saturated +25%#385DCE
Less saturated −25%#767C90

Channel breakdown

R87
G109
B175
Red87 (34.1%)
Green109 (42.7%)
Blue175 (68.6%)
Hue225°
Saturation (HSL)35.48%
Lightness51.37%
Dominant channelBlue
Hex per channelR 57 · G 6D · B AF

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Every value on this page was computed from “576daf” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.