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Recognised as Colour

#043664

  • #043664
  • Blue
  • Dark
  • Nearest: Dark slateblue

#043664 is a blue with RGB values 4, 54, 100 and HSL 209°, 92%, 20%. It is a dark colour, so white text on it reaches 12.2:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#043664#043664
HEX#043664
RGBrgb(4, 54, 100)
RGB (0–1)0.0157, 0.2118, 0.3922
RGB percentages1.6%, 21.2%, 39.2%
HSLhsl(208.8, 92.3%, 20.4%)
HSV / HSBhsv(208.8, 96%, 39.2%)
CMYK96%, 46%, 0%, 60.8%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer276,068
CSS custom property--colour: #043664;

Brightness & contrast

Relative luminance0.03584WCAG 2.x, 0 is black and 1 is white
Perceived brightness53.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 12.23:1
Contrast with white12.23:1WCAG normal text: AAA
Contrast with black1.72:1WCAG normal text: Fail
Greyscale equivalent#2F2F2F
Inverted#FBC99B

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#1E3A66no red cones; affects about 1% of men; ΔE 3.6 from the original
Deuteranopia#0A3163no green cones; the most common form, about 1% of men; ΔE 4.4 from the original
Tritanopia#004148no blue cones; rare, and affects men and women equally; ΔE 29.4 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text12.23:1WCAG large text: AAA
Contrast with black, large text1.72:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 25.9Steel blue · ΔE 31.3Dark slate grey · ΔE 33.1Midnight blue · ΔE 33.6Slate grey · ΔE 37.5Dim grey · ΔE 38.7
Nearest named CSS colourDark slateblue (#483D8B)ΔE 25.85, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#643204
Analogous#046462, #040664
Triadic#640436, #366404
Split complementary#640406, #646204
Tetradic#620464, #643204, #066404

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#3D9EF7
Lighter +30%#0C85F5
Lighter +20%#086BC6
Lighter +10%#065095
Darker −10%#021C33
Darker −20%#000102
Darker −30%#000000
Darker −40%#000000
More saturated +25%#003668
Less saturated −25%#113557

Channel breakdown

R4
G54
B100
Red4 (1.6%)
Green54 (21.2%)
Blue100 (39.2%)
Hue208.75°
Saturation (HSL)92.31%
Lightness20.39%
Dominant channelBlue
Hex per channelR 04 · G 36 · B 64

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Every value on this page was computed from “hex 043664” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.