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Recognised as Colour

#859ACB

  • #859ACB
  • Blue
  • Dark
  • Nearest: Steel blue

#859ACB is a blue with RGB values 133, 154, 203 and HSL 222°, 40%, 66%. It is a dark colour, so black text on it reaches 7.5:1 contrast (AAA for normal text). The nearest named colour is Steel blue.

Colour values

#859ACB#859ACB
HEX#859ACB
RGBrgb(133, 154, 203)
RGB (0–1)0.5216, 0.6039, 0.7961
RGB percentages52.2%, 60.4%, 79.6%
HSLhsl(222, 40.2%, 65.9%)
HSV / HSBhsv(222, 34.5%, 79.6%)
CMYK34.5%, 24.1%, 0%, 20.4%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer8,755,915
CSS custom property--colour: #859ACB;

Brightness & contrast

Relative luminance0.3241WCAG 2.x, 0 is black and 1 is white
Perceived brightness154.6 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 7.48:1
Contrast with white2.81:1WCAG normal text: Fail
Contrast with black7.48:1WCAG normal text: AAA
Greyscale equivalent#999999
Inverted#7A6534

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#8A9ECDno red cones; affects about 1% of men; ΔE 1.9 from the original
Deuteranopia#8397CAno green cones; the most common form, about 1% of men; ΔE 1.6 from the original
Tritanopia#70A4ABno blue cones; rare, and affects men and women equally; ΔE 27 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text2.81:1WCAG large text: Fail
Contrast with black, large text7.48:1WCAG large text: AAA

Named colours

Steel blue · ΔE 14.8Light slate grey · ΔE 19.4Light steelblue · ΔE 20.1Slate grey · ΔE 21.2Light skyblue · ΔE 22.1Cornflower blue · ΔE 22.4
Nearest named CSS colourSteel blue (#4682B4)ΔE 14.81, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#CBB685
Analogous#85BDCB, #9385CB
Triadic#CB859A, #9ACB85
Split complementary#CB9385, #BDCB85
Tetradic#CB85BD, #CBB685, #85CB93

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FFFFFF
Lighter +30%#F0F3F9
Lighter +20%#CDD5E9
Lighter +10%#A9B8DA
Darker −10%#617CBC
Darker −20%#4662A4
Darker −30%#374D80
Darker −40%#27375D
More saturated +25%#6F91E1
Less saturated −25%#9BA3B5

Channel breakdown

R133
G154
B203
Red133 (52.2%)
Green154 (60.4%)
Blue203 (79.6%)
Hue222°
Saturation (HSL)40.23%
Lightness65.88%
Dominant channelBlue
Hex per channelR 85 · G 9A · B CB

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Every value on this page was computed from “859acb” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.