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Recognised as Colour

#5281AB

  • #5281AB
  • Blue
  • Dark
  • Nearest: Steel blue

#5281AB is a blue with RGB values 82, 129, 171 and HSL 208°, 35%, 50%. It is a dark colour, so black text on it reaches 5.1:1 contrast (AA for normal text). The nearest named colour is Steel blue.

Colour values

#5281AB#5281AB
HEX#5281AB
RGBrgb(82, 129, 171)
RGB (0–1)0.3216, 0.5059, 0.6706
RGB percentages32.2%, 50.6%, 67.1%
HSLhsl(208.3, 35.2%, 49.6%)
HSV / HSBhsv(208.3, 52%, 67.1%)
CMYK52%, 24.6%, 0%, 32.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer5,407,147
CSS custom property--colour: #5281AB;

Brightness & contrast

Relative luminance0.20435WCAG 2.x, 0 is black and 1 is white
Perceived brightness122.9 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 5.09:1
Contrast with white4.13:1WCAG normal text: Fail
Contrast with black5.09:1WCAG normal text: AA
Greyscale equivalent#7A7A7A
Inverted#AD7E54

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#6F82ADno red cones; affects about 1% of men; ΔE 8.3 from the original
Deuteranopia#6479AAno green cones; the most common form, about 1% of men; ΔE 9.2 from the original
Tritanopia#228B8Fno blue cones; rare, and affects men and women equally; ΔE 28.5 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text4.13:1WCAG large text: AA
Contrast with black, large text5.09:1WCAG large text: AAA

Named colours

Steel blue · ΔE 5Light slate grey · ΔE 16.5Slate grey · ΔE 16.7Cadetblue · ΔE 26.8Cornflower blue · ΔE 27.5Gray · ΔE 27.5
Nearest named CSS colourSteel blue (#4682B4)ΔE 5.02, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#AB7C52
Analogous#52ABA8, #5255AB
Triadic#AB5281, #81AB52
Split complementary#AB5255, #ABA852
Tetradic#A852AB, #AB7C52, #55AB52

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#DBE5EE
Lighter +30%#B9CCDD
Lighter +20%#96B3CD
Lighter +10%#749ABC
Darker −10%#416789
Darker −20%#314D66
Darker −30%#203344
Darker −40%#101921
More saturated +25%#3283CB
Less saturated −25%#727F8B

Channel breakdown

R82
G129
B171
Red82 (32.2%)
Green129 (50.6%)
Blue171 (67.1%)
Hue208.31°
Saturation (HSL)35.18%
Lightness49.61%
Dominant channelBlue
Hex per channelR 52 · G 81 · B AB

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Every value on this page was computed from “5281ab” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.