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Recognised as Colour

#5745AB

  • #5745AB
  • Blue
  • Dark
  • Nearest: Slate blue

#5745AB is a blue with RGB values 87, 69, 171 and HSL 251°, 43%, 47%. It is a dark colour, so white text on it reaches 7.4:1 contrast (AAA for normal text). The nearest named colour is Slate blue.

Colour values

#5745AB#5745AB
HEX#5745AB
RGBrgb(87, 69, 171)
RGB (0–1)0.3412, 0.2706, 0.6706
RGB percentages34.1%, 27.1%, 67.1%
HSLhsl(250.6, 42.5%, 47.1%)
HSV / HSBhsv(250.6, 59.6%, 67.1%)
CMYK49.1%, 59.6%, 0%, 32.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer5,719,467
CSS custom property--colour: #5745AB;

Brightness & contrast

Relative luminance0.09223WCAG 2.x, 0 is black and 1 is white
Perceived brightness91.6 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 7.38:1
Contrast with white7.38:1WCAG normal text: AAA
Contrast with black2.84:1WCAG normal text: Fail
Greyscale equivalent#505050
Inverted#A8BA54

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0058AEno red cones; affects about 1% of men; ΔE 22.2 from the original
Deuteranopia#0053A9no green cones; the most common form, about 1% of men; ΔE 20.9 from the original
Tritanopia#3A5C71no blue cones; rare, and affects men and women equally; ΔE 54.6 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text7.38:1WCAG large text: AAA
Contrast with black, large text2.84:1WCAG large text: Fail

Named colours

Slate blue · ΔE 10.6Rebecca purple · ΔE 10.6Dark slateblue · ΔE 14.4Medium purple · ΔE 18.9Royal blue · ΔE 19Midnight blue · ΔE 20.9
Nearest named CSS colourSlate blue (#6A5ACD)ΔE 10.55, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#99AB45
Analogous#4566AB, #8A45AB
Triadic#AB5745, #45AB57
Split complementary#AB8A45, #66AB45
Tetradic#AB4566, #99AB45, #45AB8A

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#D5D0EC
Lighter +30%#B4ACDD
Lighter +20%#9487CF
Lighter +10%#7363C0
Darker −10%#453687
Darker −20%#322862
Darker −30%#20193E
Darker −40%#0D0A1A
More saturated +25%#4427C9
Less saturated −25%#6A638D

Channel breakdown

R87
G69
B171
Red87 (34.1%)
Green69 (27.1%)
Blue171 (67.1%)
Hue250.59°
Saturation (HSL)42.5%
Lightness47.06%
Dominant channelBlue
Hex per channelR 57 · G 45 · B AB

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Every value on this page was computed from “5745ab” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.