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Recognised as Colour

#285CA6

  • #285CA6
  • Blue
  • Dark
  • Nearest: Dark slateblue

#285CA6 is a blue with RGB values 40, 92, 166 and HSL 215°, 61%, 40%. It is a dark colour, so white text on it reaches 6.6:1 contrast (AA for normal text). The nearest named colour is Dark slateblue.

Colour values

#285CA6#285CA6
HEX#285CA6
RGBrgb(40, 92, 166)
RGB (0–1)0.1569, 0.3608, 0.651
RGB percentages15.7%, 36.1%, 65.1%
HSLhsl(215.2, 61.2%, 40.4%)
HSV / HSBhsv(215.2, 75.9%, 65.1%)
CMYK75.9%, 44.6%, 0%, 34.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,645,158
CSS custom property--colour: #285CA6;

Brightness & contrast

Relative luminance0.10859WCAG 2.x, 0 is black and 1 is white
Perceived brightness92.7 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 6.62:1
Contrast with white6.62:1WCAG normal text: AA
Contrast with black3.17:1WCAG normal text: Fail
Greyscale equivalent#565656
Inverted#D7A359

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#3763A9no red cones; affects about 1% of men; ΔE 4.1 from the original
Deuteranopia#1E57A5no green cones; the most common form, about 1% of men; ΔE 3.5 from the original
Tritanopia#006D79no blue cones; rare, and affects men and women equally; ΔE 43.6 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text6.62:1WCAG large text: AAA
Contrast with black, large text3.17:1WCAG large text: AA

Named colours

Dark slateblue · ΔE 18.9Steel blue · ΔE 22.6Cornflower blue · ΔE 23Dodgerblue · ΔE 27.3Royal blue · ΔE 27.8Slate blue · ΔE 30.2
Nearest named CSS colourDark slateblue (#483D8B)ΔE 18.94, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#A67228
Analogous#289BA6, #3328A6
Triadic#A6285C, #5CA628
Split complementary#A63328, #9BA628
Tetradic#A6289B, #A67228, #28A633

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#AEC8EC
Lighter +30%#85ABE2
Lighter +20%#5C8FD8
Lighter +10%#3373CE
Darker −10%#1E457D
Darker −20%#142E54
Darker −30%#0A182B
Darker −40%#000102
More saturated +25%#0E58C0
Less saturated −25%#42608C

Channel breakdown

R40
G92
B166
Red40 (15.7%)
Green92 (36.1%)
Blue166 (65.1%)
Hue215.24°
Saturation (HSL)61.17%
Lightness40.39%
Dominant channelBlue
Hex per channelR 28 · G 5C · B A6

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Every value on this page was computed from “285ca6” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.