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Recognised as Colour

#55728E

  • #55728E
  • Blue
  • Dark
  • Nearest: Slate grey

#55728E is a blue with RGB values 85, 114, 142 and HSL 209°, 25%, 45%. It is a dark colour, so white text on it reaches 5:1 contrast (AA for normal text). The nearest named colour is Slate grey.

Colour values

#55728E#55728E
HEX#55728E
RGBrgb(85, 114, 142)
RGB (0–1)0.3333, 0.4471, 0.5569
RGB percentages33.3%, 44.7%, 55.7%
HSLhsl(209.5, 25.1%, 44.5%)
HSV / HSBhsv(209.5, 40.1%, 55.7%)
CMYK40.1%, 19.7%, 0%, 44.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer5,599,886
CSS custom property--colour: #55728E;

Brightness & contrast

Relative luminance0.15919WCAG 2.x, 0 is black and 1 is white
Perceived brightness109.9 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 5.02:1
Contrast with white5.02:1WCAG normal text: AA
Contrast with black4.18:1WCAG normal text: Fail
Greyscale equivalent#6E6E6E
Inverted#AA8D71

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#67728Fno red cones; affects about 1% of men; ΔE 6.1 from the original
Deuteranopia#606C8Dno green cones; the most common form, about 1% of men; ΔE 6.8 from the original
Tritanopia#41787Bno blue cones; rare, and affects men and women equally; ΔE 18.3 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text5.02:1WCAG large text: AAA
Contrast with black, large text4.18:1WCAG large text: AA

Named colours

Slate grey · ΔE 10.1Light slate grey · ΔE 11.8Steel blue · ΔE 14.7Dim grey · ΔE 19Gray · ΔE 20Dark slate grey · ΔE 23.3
Nearest named CSS colourSlate grey (#708090)ΔE 10.05, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#8E7155
Analogous#558E8D, #55568E
Triadic#8E5572, #728E55
Split complementary#8E5556, #8E8D55
Tetradic#8D558E, #8E7155, #568E55

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#CED8E1
Lighter +30%#AEBECE
Lighter +20%#8EA5BB
Lighter +10%#6E8CA8
Darker −10%#42586E
Darker −20%#2F3F4E
Darker −30%#1C252E
Darker −40%#090C0E
More saturated +25%#3972AA
Less saturated −25%#717272

Channel breakdown

R85
G114
B142
Red85 (33.3%)
Green114 (44.7%)
Blue142 (55.7%)
Hue209.47°
Saturation (HSL)25.11%
Lightness44.51%
Dominant channelBlue
Hex per channelR 55 · G 72 · B 8E

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Every value on this page was computed from “55728e” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.