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Recognised as Colour

#8591B7

  • #8591B7
  • Blue
  • Dark
  • Nearest: Light slate grey

#8591B7 is a blue with RGB values 133, 145, 183 and HSL 226°, 26%, 62%. It is a dark colour, so black text on it reaches 6.7:1 contrast (AA for normal text). The nearest named colour is Light slate grey.

Colour values

#8591B7#8591B7
HEX#8591B7
RGBrgb(133, 145, 183)
RGB (0–1)0.5216, 0.5686, 0.7176
RGB percentages52.2%, 56.9%, 71.8%
HSLhsl(225.6, 25.8%, 62%)
HSV / HSBhsv(225.6, 27.3%, 71.8%)
CMYK27.3%, 20.8%, 0%, 28.2%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer8,753,591
CSS custom property--colour: #8591B7;

Brightness & contrast

Relative luminance0.28656WCAG 2.x, 0 is black and 1 is white
Perceived brightness146.5 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 6.73:1
Contrast with white3.12:1WCAG normal text: Fail
Contrast with black6.73:1WCAG normal text: AA
Greyscale equivalent#919191
Inverted#7A6E48

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#8694B9no red cones; affects about 1% of men; ΔE 1.4 from the original
Deuteranopia#8290B6no green cones; the most common form, about 1% of men; ΔE 0.8 from the original
Tritanopia#78989Eno 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 text3.12:1WCAG large text: AA
Contrast with black, large text6.73:1WCAG large text: AAA

Named colours

Light slate grey · ΔE 12.9Slate grey · ΔE 14.7Steel blue · ΔE 16Light steelblue · ΔE 19.8Gray · ΔE 22.8Dark grey · ΔE 23.4
Nearest named CSS colourLight slate grey (#778899)ΔE 12.94, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#B7AB85
Analogous#85AAB7, #9285B7
Triadic#B78591, #91B785
Split complementary#B79285, #AAB785
Tetradic#B785AA, #B7AB85, #85B792

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FFFFFF
Lighter +30%#E5E8F0
Lighter +20%#C5CBDD
Lighter +10%#A5AECA
Darker −10%#6574A4
Darker −20%#4F5D87
Darker −30%#3C4767
Darker −40%#2A3046
More saturated +25%#6D84CF
Less saturated −25%#9D9E9F

Channel breakdown

R133
G145
B183
Red133 (52.2%)
Green145 (56.9%)
Blue183 (71.8%)
Hue225.6°
Saturation (HSL)25.77%
Lightness61.96%
Dominant channelBlue
Hex per channelR 85 · G 91 · B B7

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Every value on this page was computed from “8591b7” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.