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Recognised as Colour

#063583

  • #063583
  • Blue
  • Dark
  • Nearest: Dark slateblue

#063583 is a blue with RGB values 6, 53, 131 and HSL 217°, 91%, 27%. It is a dark colour, so white text on it reaches 11.4:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#063583#063583
HEX#063583
RGBrgb(6, 53, 131)
RGB (0–1)0.0235, 0.2078, 0.5137
RGB percentages2.4%, 20.8%, 51.4%
HSLhsl(217.4, 91.2%, 26.9%)
HSV / HSBhsv(217.4, 95.4%, 51.4%)
CMYK95.4%, 59.5%, 0%, 48.6%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer406,915
CSS custom property--colour: #063583;

Brightness & contrast

Relative luminance0.04224WCAG 2.x, 0 is black and 1 is white
Perceived brightness60.1 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 11.38:1
Contrast with white11.38:1WCAG normal text: AAA
Contrast with black1.84:1WCAG normal text: Fail
Greyscale equivalent#313131
Inverted#F9CA7C

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#004086no red cones; affects about 1% of men; ΔE 8.5 from the original
Deuteranopia#003582no green cones; the most common form, about 1% of men; ΔE 0.9 from the original
Tritanopia#004956no blue cones; rare, and affects men and women equally; ΔE 47.9 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text11.38:1WCAG large text: AAA
Contrast with black, large text1.84:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 11.3Midnight blue · ΔE 15.7Rebecca purple · ΔE 25.7Slate blue · ΔE 29Royal blue · ΔE 30.3Indigo · ΔE 33.8
Nearest named CSS colourDark slateblue (#483D8B)ΔE 11.33, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#835406
Analogous#067383, #160683
Triadic#830635, #358306
Split complementary#831606, #748306
Tetradic#830673, #835406, #068316

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#5D97F8
Lighter +30%#2D78F5
Lighter +20%#0A5CE5
Lighter +10%#0849B4
Darker −10%#042152
Darker −20%#020E21
Darker −30%#000000
Darker −40%#000000
More saturated +25%#003489
Less saturated −25%#173972

Channel breakdown

R6
G53
B131
Red6 (2.4%)
Green53 (20.8%)
Blue131 (51.4%)
Hue217.44°
Saturation (HSL)91.24%
Lightness26.86%
Dominant channelBlue
Hex per channelR 06 · G 35 · B 83

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Every value on this page was computed from “hex 063583” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.