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Colour

#8591BC

  • #8591BC
  • Blue
  • Dark
  • Nearest: Steel blue

#8591BC is a blue with RGB values 133, 145, 188 and HSL 227°, 29%, 63%. It is a dark colour, so black text on it reaches 6.8:1 contrast (AA for normal text). The nearest named colour is Steel blue.

Colour values

#8591BC#8591BC
HEX#8591BC
RGBrgb(133, 145, 188)
RGB (0–1)0.5216, 0.5686, 0.7373
RGB percentages52.2%, 56.9%, 73.7%
HSLhsl(226.9, 29.1%, 62.9%)
HSV / HSBhsv(226.9, 29.3%, 73.7%)
CMYK29.3%, 22.9%, 0%, 26.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer8,753,596
CSS custom property--colour: #8591BC;

Brightness & contrast

Relative luminance0.28868WCAG 2.x, 0 is black and 1 is white
Perceived brightness147.2 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 6.77:1
Contrast with white3.1:1WCAG normal text: Fail
Contrast with black6.77:1WCAG normal text: AA
Greyscale equivalent#929292
Inverted#7A6E43

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#8495BEno red cones; affects about 1% of men; ΔE 2.4 from the original
Deuteranopia#8090BBno green cones; the most common form, about 1% of men; ΔE 1.4 from the original
Tritanopia#7799A0no blue cones; rare, and affects men and women equally; ΔE 22.6 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text3.1:1WCAG large text: AA
Contrast with black, large text6.77:1WCAG large text: AAA

Named colours

Steel blue · ΔE 15.3Light slate grey · ΔE 15.7Slate grey · ΔE 17.2Light steelblue · ΔE 20.9Thistle · ΔE 25.4Gray · ΔE 25.4
Nearest named CSS colourSteel blue (#4682B4)ΔE 15.27, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#BCB085
Analogous#85ACBC, #9585BC
Triadic#BC8591, #91BC85
Split complementary#BC9585, #ACBC85
Tetradic#BC85AC, #BCB085, #85BC95

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FFFFFF
Lighter +30%#E8EAF2
Lighter +20%#C7CCE0
Lighter +10%#A6AFCE
Darker −10%#6473AA
Darker −20%#4E5C8D
Darker −30%#3C466C
Darker −40%#29314C
More saturated +25%#6D84D4
Less saturated −25%#9D9EA4

Channel breakdown

R133
G145
B188
Red133 (52.2%)
Green145 (56.9%)
Blue188 (73.7%)
Hue226.91°
Saturation (HSL)29.1%
Lightness62.94%
Dominant channelBlue
Hex per channelR 85 · G 91 · B BC

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