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Colour

#406CB4

  • #406CB4
  • Blue
  • Dark
  • Nearest: Steel blue

#406CB4 is a blue with RGB values 64, 108, 180 and HSL 217°, 48%, 48%. It is a dark colour, so white text on it reaches 5.2:1 contrast (AA for normal text). The nearest named colour is Steel blue.

Colour values

#406CB4#406CB4
HEX#406CB4
RGBrgb(64, 108, 180)
RGB (0–1)0.251, 0.4235, 0.7059
RGB percentages25.1%, 42.4%, 70.6%
HSLhsl(217.2, 47.5%, 47.8%)
HSV / HSBhsv(217.2, 64.4%, 70.6%)
CMYK64.4%, 40%, 0%, 29.4%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer4,222,132
CSS custom property--colour: #406CB4;

Brightness & contrast

Relative luminance0.1511WCAG 2.x, 0 is black and 1 is white
Perceived brightness108.5 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 5.22:1
Contrast with white5.22:1WCAG normal text: AA
Contrast with black4.02:1WCAG normal text: Fail
Greyscale equivalent#686868
Inverted#BF934B

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#4C72B7no red cones; affects about 1% of men; ΔE 3.3 from the original
Deuteranopia#3B67B3no green cones; the most common form, about 1% of men; ΔE 3.4 from the original
Tritanopia#007C87no blue cones; rare, and affects men and women equally; ΔE 43.3 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text5.22:1WCAG large text: AAA
Contrast with black, large text4.02:1WCAG large text: AA

Named colours

Steel blue · ΔE 17.4Cornflower blue · ΔE 17.5Dark slateblue · ΔE 23.4Dodgerblue · ΔE 24.8Royal blue · ΔE 29Medium purple · ΔE 31
Nearest named CSS colourSteel blue (#4682B4)ΔE 17.44, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#B48840
Analogous#40A6B4, #4E40B4
Triadic#B4406C, #6CB440
Split complementary#B44E40, #A6B440
Tetradic#B440A6, #B48840, #40B44E

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#D1DCEF
Lighter +30%#ACC0E1
Lighter +20%#86A4D4
Lighter +10%#6087C7
Darker −10%#33558E
Darker −20%#253F69
Darker −30%#182843
Darker −40%#0A121E
More saturated +25%#2265D3
Less saturated −25%#5F7396

Channel breakdown

R64
G108
B180
Red64 (25.1%)
Green108 (42.4%)
Blue180 (70.6%)
Hue217.24°
Saturation (HSL)47.54%
Lightness47.84%
Dominant channelBlue
Hex per channelR 40 · G 6C · B B4

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Every value on this page was computed from “406cb4” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.