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Recognised as Colour

#536C8B

  • #536C8B
  • Blue
  • Dark
  • Nearest: Slate grey

#536C8B is a blue with RGB values 83, 108, 139 and HSL 213°, 25%, 44%. It is a dark colour, so white text on it reaches 5.4:1 contrast (AA for normal text). The nearest named colour is Slate grey.

Colour values

#536C8B#536C8B
HEX#536C8B
RGBrgb(83, 108, 139)
RGB (0–1)0.3255, 0.4235, 0.5451
RGB percentages32.5%, 42.4%, 54.5%
HSLhsl(213.2, 25.2%, 43.5%)
HSV / HSBhsv(213.2, 40.3%, 54.5%)
CMYK40.3%, 22.3%, 0%, 45.5%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer5,467,275
CSS custom property--colour: #536C8B;

Brightness & contrast

Relative luminance0.14428WCAG 2.x, 0 is black and 1 is white
Perceived brightness105.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 5.4:1
Contrast with white5.4:1WCAG normal text: AA
Contrast with black3.89:1WCAG normal text: Fail
Greyscale equivalent#696969
Inverted#AC9374

Colour vision & accessibility

Protanopia#606D8Cno red cones; affects about 1% of men; ΔE 4.1 from the original
Deuteranopia#5A688Ano green cones; the most common form, about 1% of men; ΔE 4.3 from the original
Tritanopia#407376no blue cones; rare, and affects men and women equally; ΔE 20.2 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text5.4:1WCAG large text: AAA
Contrast with black, large text3.89:1WCAG large text: AA

Named colours

Nearest named CSS colourSlate grey (#708090)ΔE 12.4, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

Complementary#8B7253
Analogous#53888B, #56538B
Triadic#8B536C, #6C8B53
Split complementary#8B5653, #888B53
Tetradic#8B5388, #8B7253, #538B56

Tints, shades & saturation

Lighter +40%#CAD4E0
Lighter +30%#AABACD
Lighter +20%#8B9FB9
Lighter +10%#6B85A6
Darker −10%#40536B
Darker −20%#2D3A4B
Darker −30%#1A222B
Darker −40%#07090B
More saturated +25%#3769A7
Less saturated −25%#6F6F6F

Channel breakdown

R83
G108
B139
Red83 (32.5%)
Green108 (42.4%)
Blue139 (54.5%)
Hue213.21°
Saturation (HSL)25.23%
Lightness43.53%
Dominant channelBlue
Hex per channelR 53 · G 6C · B 8B

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Every value on this page was computed from “536c8b” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.