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Colour

#406CB9

  • #406CB9
  • Blue
  • Dark
  • Nearest: Cornflower blue

#406CB9 is a blue with RGB values 64, 108, 185 and HSL 218°, 49%, 49%. It is a dark colour, so white text on it reaches 5.2:1 contrast (AA for normal text). The nearest named colour is Cornflower blue.

Colour values

#406CB9#406CB9
HEX#406CB9
RGBrgb(64, 108, 185)
RGB (0–1)0.251, 0.4235, 0.7255
RGB percentages25.1%, 42.4%, 72.5%
HSLhsl(218.2, 48.6%, 48.8%)
HSV / HSBhsv(218.2, 65.4%, 72.5%)
CMYK65.4%, 41.6%, 0%, 27.5%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer4,222,137
CSS custom property--colour: #406CB9;

Brightness & contrast

Relative luminance0.15318WCAG 2.x, 0 is black and 1 is white
Perceived brightness109.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 5.17:1
Contrast with white5.17:1WCAG normal text: AA
Contrast with black4.06:1WCAG normal text: Fail
Greyscale equivalent#686868
Inverted#BF9346

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#4973BCno red cones; affects about 1% of men; ΔE 3.9 from the original
Deuteranopia#3668B7no green cones; the most common form, about 1% of men; ΔE 2.3 from the original
Tritanopia#007E89no blue cones; rare, and affects men and women equally; ΔE 46.5 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text5.17:1WCAG large text: AAA
Contrast with black, large text4.06:1WCAG large text: AA

Named colours

Cornflower blue · ΔE 16.4Steel blue · ΔE 20.1Dark slateblue · ΔE 22.4Dodgerblue · ΔE 22.5Royal blue · ΔE 26Medium purple · ΔE 28.8
Nearest named CSS colourCornflower blue (#6495ED)ΔE 16.39, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#B98D40
Analogous#40A8B9, #5140B9
Triadic#B9406C, #6CB940
Split complementary#B95140, #A8B940
Tetradic#B940A8, #B98D40, #40B950

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#D5DFF0
Lighter +30%#AFC2E3
Lighter +20%#89A5D6
Lighter +10%#6388C9
Darker −10%#335693
Darker −20%#26406D
Darker −30%#192A47
Darker −40%#0C1421
More saturated +25%#2164D8
Less saturated −25%#5F749A

Channel breakdown

R64
G108
B185
Red64 (25.1%)
Green108 (42.4%)
Blue185 (72.5%)
Hue218.18°
Saturation (HSL)48.59%
Lightness48.82%
Dominant channelBlue
Hex per channelR 40 · G 6C · B B9

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Every value on this page was computed from “406cb9” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.