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Recognised as Colour

#033163

  • #033163
  • Blue
  • Dark
  • Nearest: Dark slateblue

#033163 is a blue with RGB values 3, 49, 99 and HSL 211°, 94%, 20%. It is a dark colour, so white text on it reaches 12.9:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#033163#033163
HEX#033163
RGBrgb(3, 49, 99)
RGB (0–1)0.0118, 0.1922, 0.3882
RGB percentages1.2%, 19.2%, 38.8%
HSLhsl(211.2, 94.1%, 20%)
HSV / HSBhsv(211.2, 97%, 38.8%)
CMYK97%, 50.5%, 0%, 61.2%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer209,251
CSS custom property--colour: #033163;

Brightness & contrast

Relative luminance0.03117WCAG 2.x, 0 is black and 1 is white
Perceived brightness50.3 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 12.94:1
Contrast with white12.94:1WCAG normal text: AAA
Contrast with black1.62:1WCAG normal text: Fail
Greyscale equivalent#2B2B2B
Inverted#FCCE9C

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#143665no red cones; affects about 1% of men; ΔE 3.4 from the original
Deuteranopia#002E62no green cones; the most common form, about 1% of men; ΔE 2.2 from the original
Tritanopia#003D45no blue cones; rare, and affects men and women equally; ΔE 32 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text12.94:1WCAG large text: AAA
Contrast with black, large text1.62:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 23.1Midnight blue · ΔE 29.7Steel blue · ΔE 33.9Dark slate grey · ΔE 36.9Black · ΔE 40Rebecca purple · ΔE 40.2
Nearest named CSS colourDark slateblue (#483D8B)ΔE 23.13, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#633503
Analogous#036163, #050363
Triadic#630331, #316303
Split complementary#630503, #616303
Tetradic#630361, #633503, #036305

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#3995F9
Lighter +30%#087AF7
Lighter +20%#0662C6
Lighter +10%#054994
Darker −10%#021831
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#003166
Less saturated −25%#103256

Channel breakdown

R3
G49
B99
Red3 (1.2%)
Green49 (19.2%)
Blue99 (38.8%)
Hue211.25°
Saturation (HSL)94.12%
Lightness20%
Dominant channelBlue
Hex per channelR 03 · G 31 · B 63

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Every value on this page was computed from “hex 033163” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.