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Recognised as Colour

#163D73

  • #163D73
  • Blue
  • Dark
  • Nearest: Dark slateblue

#163D73 is a blue with RGB values 22, 61, 115 and HSL 215°, 68%, 27%. It is a dark colour, so white text on it reaches 10.8:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#163D73#163D73
HEX#163D73
RGBrgb(22, 61, 115)
RGB (0–1)0.0863, 0.2392, 0.451
RGB percentages8.6%, 23.9%, 45.1%
HSLhsl(214.8, 67.9%, 26.9%)
HSV / HSBhsv(214.8, 80.9%, 45.1%)
CMYK80.9%, 47%, 0%, 54.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,457,523
CSS custom property--colour: #163D73;

Brightness & contrast

Relative luminance0.04746WCAG 2.x, 0 is black and 1 is white
Perceived brightness61.9 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 10.77:1
Contrast with white10.77:1WCAG normal text: AAA
Contrast with black1.95:1WCAG normal text: Fail
Greyscale equivalent#393939
Inverted#E9C28C

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#214275no red cones; affects about 1% of men; ΔE 3.2 from the original
Deuteranopia#0D3A72no green cones; the most common form, about 1% of men; ΔE 2 from the original
Tritanopia#004A52no blue cones; rare, and affects men and women equally; ΔE 34.5 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text10.77:1WCAG large text: AAA
Contrast with black, large text1.95:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 20.5Steel blue · ΔE 29Midnight blue · ΔE 30Dark slate grey · ΔE 37.1Slate grey · ΔE 37.5Rebecca purple · ΔE 38.1
Nearest named CSS colourDark slateblue (#483D8B)ΔE 20.45, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#734C16
Analogous#166B73, #1E1673
Triadic#73163D, #3D7316
Split complementary#731E16, #6B7316
Tetradic#73166B, #734C16, #16731E

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#71A1E4
Lighter +30%#4685DC
Lighter +20%#266AC9
Lighter +10%#1E549E
Darker −10%#0E2648
Darker −20%#06101D
Darker −30%#000000
Darker −40%#000000
More saturated +25%#053A84
Less saturated −25%#274062

Channel breakdown

R22
G61
B115
Red22 (8.6%)
Green61 (23.9%)
Blue115 (45.1%)
Hue214.84°
Saturation (HSL)67.88%
Lightness26.86%
Dominant channelBlue
Hex per channelR 16 · G 3D · B 73

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Every value on this page was computed from “163d73” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.