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Recognised as Colour

#066AD8

  • #066AD8
  • Blue
  • Dark
  • Nearest: Royal blue

#066AD8 is a blue with RGB values 6, 106, 216 and HSL 211°, 95%, 44%. It is a dark colour, so white text on it reaches 5.2:1 contrast (AA for normal text). The nearest named colour is Royal blue.

Colour values

#066AD8#066AD8
HEX#066AD8
RGBrgb(6, 106, 216)
RGB (0–1)0.0235, 0.4157, 0.8471
RGB percentages2.4%, 41.6%, 84.7%
HSLhsl(211.4, 94.6%, 43.5%)
HSV / HSBhsv(211.4, 97.2%, 84.7%)
CMYK97.2%, 50.9%, 0%, 15.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer420,568
CSS custom property--colour: #066AD8;

Brightness & contrast

Relative luminance0.15305WCAG 2.x, 0 is black and 1 is white
Perceived brightness109.2 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#5D5D5D
Inverted#F99527

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#1C76DCno red cones; affects about 1% of men; ΔE 7.6 from the original
Deuteranopia#0065D6no green cones; the most common form, about 1% of men; ΔE 3.1 from the original
Tritanopia#008597no blue cones; rare, and affects men and women equally; ΔE 61.1 from the original
Distinguishable without hueShifts in lightness toonever 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

Royal blue · ΔE 9Dodgerblue · ΔE 15.4Slate blue · ΔE 19.2Cornflower blue · ΔE 22.6Medium slateblue · ΔE 24.3Medium purple · ΔE 24.8
Nearest named CSS colourRoyal blue (#4169E1)ΔE 9.05, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#D87406
Analogous#06D3D8, #0B06D8
Triadic#D8066A, #6AD806
Split complementary#D80B06, #D3D806
Tetradic#D806D3, #D87406, #06D80B

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#ADD3FD
Lighter +30%#7CB8FB
Lighter +20%#4A9EFA
Lighter +10%#1883F9
Darker −10%#0552A6
Darker −20%#033975
Darker −30%#022143
Darker −40%#000912
More saturated +25%#006ADE
Less saturated −25%#226BBC

Channel breakdown

R6
G106
B216
Red6 (2.4%)
Green106 (41.6%)
Blue216 (84.7%)
Hue211.43°
Saturation (HSL)94.59%
Lightness43.53%
Dominant channelBlue
Hex per channelR 06 · G 6A · B D8

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Every value on this page was computed from “066ad8” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.