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Recognised as Colour

#858DB5

  • #858DB5
  • Blue
  • Dark
  • Nearest: Light slate grey

#858DB5 is a blue with RGB values 133, 141, 181 and HSL 230°, 24%, 62%. It is a dark colour, so black text on it reaches 6.5:1 contrast (AA for normal text). The nearest named colour is Light slate grey.

Colour values

#858DB5#858DB5
HEX#858DB5
RGBrgb(133, 141, 181)
RGB (0–1)0.5216, 0.5529, 0.7098
RGB percentages52.2%, 55.3%, 71%
HSLhsl(230, 24.5%, 61.6%)
HSV / HSBhsv(230, 26.5%, 71%)
CMYK26.5%, 22.1%, 0%, 29%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer8,752,565
CSS custom property--colour: #858DB5;

Brightness & contrast

Relative luminance0.27372WCAG 2.x, 0 is black and 1 is white
Perceived brightness143.9 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 6.47:1
Contrast with white3.24:1WCAG normal text: Fail
Contrast with black6.47:1WCAG normal text: AA
Greyscale equivalent#8E8E8E
Inverted#7A724A

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#8291B7no red cones; affects about 1% of men; ΔE 2.9 from the original
Deuteranopia#7E8DB4no green cones; the most common form, about 1% of men; ΔE 2.5 from the original
Tritanopia#79949Bno blue cones; rare, and affects men and women equally; ΔE 20.6 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text3.24:1WCAG large text: AA
Contrast with black, large text6.47:1WCAG large text: AAA

Named colours

Light slate grey · ΔE 14.1Slate grey · ΔE 15.5Steel blue · ΔE 16.1Light steelblue · ΔE 21.6Gray · ΔE 23.4Dark grey · ΔE 24.8
Nearest named CSS colourLight slate grey (#778899)ΔE 14.1, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#B5AD85
Analogous#85A5B5, #9585B5
Triadic#B5858D, #8DB585
Split complementary#B59585, #A5B585
Tetradic#B585A5, #B5AD85, #85B595

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FFFFFF
Lighter +30%#E4E6EF
Lighter +20%#C4C8DC
Lighter +10%#A5ABC8
Darker −10%#656FA2
Darker −20%#505984
Darker −30%#3D4364
Darker −40%#2A2E44
More saturated +25%#6D7DCE
Less saturated −25%#9D9D9D

Channel breakdown

R133
G141
B181
Red133 (52.2%)
Green141 (55.3%)
Blue181 (71%)
Hue230°
Saturation (HSL)24.49%
Lightness61.57%
Dominant channelBlue
Hex per channelR 85 · G 8D · B B5

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Every value on this page was computed from “858db5” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.