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Recognised as Colour

#0663D2

  • #0663D2
  • Blue
  • Dark
  • Nearest: Royal blue

#0663D2 is a blue with RGB values 6, 99, 210 and HSL 213°, 94%, 42%. It is a dark colour, so white text on it reaches 5.6:1 contrast (AA for normal text). The nearest named colour is Royal blue.

Colour values

#0663D2#0663D2
HEX#0663D2
RGBrgb(6, 99, 210)
RGB (0–1)0.0235, 0.3882, 0.8235
RGB percentages2.4%, 38.8%, 82.4%
HSLhsl(212.6, 94.4%, 42.4%)
HSV / HSBhsv(212.6, 97.1%, 82.4%)
CMYK97.1%, 52.9%, 0%, 17.6%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer418,770
CSS custom property--colour: #0663D2;

Brightness & contrast

Relative luminance0.13616WCAG 2.x, 0 is black and 1 is white
Perceived brightness103.9 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 5.64:1
Contrast with white5.64:1WCAG normal text: AA
Contrast with black3.72:1WCAG normal text: Fail
Greyscale equivalent#575757
Inverted#F99C2D

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0070D6no red cones; affects about 1% of men; ΔE 8.9 from the original
Deuteranopia#005FD0no green cones; the most common form, about 1% of men; ΔE 2.3 from the original
Tritanopia#007F91no blue cones; rare, and affects men and women equally; ΔE 62.4 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text5.64:1WCAG large text: AAA
Contrast with black, large text3.72:1WCAG large text: AA

Named colours

Royal blue · ΔE 7.9Slate blue · ΔE 17.3Dodgerblue · ΔE 18.5Medium slateblue · ΔE 23Medium purple · ΔE 24.4Cornflower blue · ΔE 25.4
Nearest named CSS colourRoyal blue (#4169E1)ΔE 7.86, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#D27506
Analogous#06C9D2, #0F06D2
Triadic#D20663, #63D206
Split complementary#D20F06, #C9D206
Tetradic#D206C9, #D27506, #06D20F

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#A7CEFD
Lighter +30%#76B3FB
Lighter +20%#4497FA
Lighter +10%#137BF8
Darker −10%#054CA0
Darker −20%#03346F
Darker −30%#021D3D
Darker −40%#00050C
More saturated +25%#0062D8
Less saturated −25%#2165B7

Channel breakdown

R6
G99
B210
Red6 (2.4%)
Green99 (38.8%)
Blue210 (82.4%)
Hue212.65°
Saturation (HSL)94.44%
Lightness42.35%
Dominant channelBlue
Hex per channelR 06 · G 63 · B D2

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Every value on this page was computed from “0663d2” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.