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Recognised as Colour

#576DB4

  • #576DB4
  • Blue
  • Dark
  • Nearest: Cornflower blue

#576DB4 is a blue with RGB values 87, 109, 180 and HSL 226°, 38%, 52%. It is a dark colour, so white text on it reaches 4.9:1 contrast (AA for normal text). The nearest named colour is Cornflower blue.

Colour values

#576DB4#576DB4
HEX#576DB4
RGBrgb(87, 109, 180)
RGB (0–1)0.3412, 0.4275, 0.7059
RGB percentages34.1%, 42.7%, 70.6%
HSLhsl(225.8, 38.3%, 52.4%)
HSV / HSBhsv(225.8, 51.7%, 70.6%)
CMYK51.7%, 39.4%, 0%, 29.4%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer5,729,716
CSS custom property--colour: #576DB4;

Brightness & contrast

Relative luminance0.16259WCAG 2.x, 0 is black and 1 is white
Perceived brightness113.7 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 4.94:1
Contrast with white4.94:1WCAG normal text: AA
Contrast with black4.25:1WCAG normal text: Fail
Greyscale equivalent#6D6D6D
Inverted#A8924B

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#5175B7no red cones; affects about 1% of men; ΔE 5.9 from the original
Deuteranopia#476CB2no green cones; the most common form, about 1% of men; ΔE 3.9 from the original
Tritanopia#2D7C88no blue cones; rare, and affects men and women equally; ΔE 41.7 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text4.94:1WCAG large text: AAA
Contrast with black, large text4.25:1WCAG large text: AA

Named colours

Cornflower blue · ΔE 17.4Steel blue · ΔE 18.9Dark slateblue · ΔE 21.6Dodgerblue · ΔE 26.2Medium purple · ΔE 27.5Royal blue · ΔE 28.7
Nearest named CSS colourCornflower blue (#6495ED)ΔE 17.45, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#B49E57
Analogous#579CB4, #6F57B4
Triadic#B4576D, #6DB457
Split complementary#B47057, #9CB457
Tetradic#B4579C, #B49E57, #57B470

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#E4E8F3
Lighter +30%#C1C9E3
Lighter +20%#9EAAD3
Lighter +10%#7A8CC4
Darker −10%#435695
Darker −20%#334272
Darker −30%#232E4F
Darker −40%#13192C
More saturated +25%#395DD2
Less saturated −25%#757D96

Channel breakdown

R87
G109
B180
Red87 (34.1%)
Green109 (42.7%)
Blue180 (70.6%)
Hue225.81°
Saturation (HSL)38.27%
Lightness52.35%
Dominant channelBlue
Hex per channelR 57 · G 6D · B B4

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Every value on this page was computed from “576db4” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.