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Recognised as Colour

#166AEC

  • #166AEC
  • Blue
  • Dark
  • Nearest: Royal blue

#166AEC is a blue with RGB values 22, 106, 236 and HSL 216°, 85%, 51%. It is a dark colour, so white text on it reaches 4.9:1 contrast (AA for normal text). The nearest named colour is Royal blue.

Colour values

#166AEC#166AEC
HEX#166AEC
RGBrgb(22, 106, 236)
RGB (0–1)0.0863, 0.4157, 0.9255
RGB percentages8.6%, 41.6%, 92.5%
HSLhsl(216.4, 84.9%, 50.6%)
HSV / HSBhsv(216.4, 90.7%, 92.5%)
CMYK90.7%, 55.1%, 0%, 7.5%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,469,164
CSS custom property--colour: #166AEC;

Brightness & contrast

Relative luminance0.16535WCAG 2.x, 0 is black and 1 is white
Perceived brightness114.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 4.88:1
Contrast with white4.88:1WCAG normal text: AA
Contrast with black4.31:1WCAG normal text: Fail
Greyscale equivalent#626262
Inverted#E99513

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#007BF0no red cones; affects about 1% of men; ΔE 12.2 from the original
Deuteranopia#0068E9no green cones; the most common form, about 1% of men; ΔE 1.1 from the original
Tritanopia#008BA1no blue cones; rare, and affects men and women equally; ΔE 71.3 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text4.88:1WCAG large text: AAA
Contrast with black, large text4.31:1WCAG large text: AA

Named colours

Royal blue · ΔE 6.5Medium slateblue · ΔE 17Slate blue · ΔE 17.4Dodgerblue · ΔE 21.6Medium purple · ΔE 25.3Cornflower blue · ΔE 31.4
Nearest named CSS colourRoyal blue (#4169E1)ΔE 6.53, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#EC9816
Analogous#16D5EC, #2D16EC
Triadic#EC166A, #6AEC16
Split complementary#EC2D16, #D5EC16
Tetradic#EC16D5, #EC9816, #16EC2D

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#D3E3FB
Lighter +30%#A3C4F8
Lighter +20%#74A6F4
Lighter +10%#4588F0
Darker −10%#1055BF
Darker −20%#0C4090
Darker −30%#082B61
Darker −40%#041632
More saturated +25%#0366FF
Less saturated −25%#3571CD

Channel breakdown

R22
G106
B236
Red22 (8.6%)
Green106 (41.6%)
Blue236 (92.5%)
Hue216.45°
Saturation (HSL)84.92%
Lightness50.59%
Dominant channelBlue
Hex per channelR 16 · G 6A · B EC

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Every value on this page was computed from “166aec” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.