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Colour

#004568

  • #004568
  • Blue
  • Dark
  • Nearest: Dark slate grey

#004568 is a blue with RGB values 0, 69, 104 and HSL 200°, 100%, 20%. It is a dark colour, so white text on it reaches 10.2:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.

Colour values

#004568#004568
HEX#004568
RGBrgb(0, 69, 104)
RGB (0–1)0, 0.2706, 0.4078
RGB percentages0%, 27.1%, 40.8%
HSLhsl(200.2, 100%, 20.4%)
HSV / HSBhsv(200.2, 100%, 40.8%)
CMYK100%, 33.7%, 0%, 59.2%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer17,768
CSS custom property--colour: #004568;

Brightness & contrast

Relative luminance0.05256WCAG 2.x, 0 is black and 1 is white
Perceived brightness63.5 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 10.24:1
Contrast with white10.24:1WCAG normal text: AAA
Contrast with black2.05:1WCAG normal text: Fail
Greyscale equivalent#393939
Inverted#FFBA97

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#34466Ano red cones; affects about 1% of men; ΔE 9.4 from the original
Deuteranopia#263D67no green cones; the most common form, about 1% of men; ΔE 10.5 from the original
Tritanopia#004E51no blue cones; rare, and affects men and women equally; ΔE 23.2 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text10.24:1WCAG large text: AAA
Contrast with black, large text2.05:1WCAG large text: Fail

Named colours

Dark slate grey · ΔE 23.4Steel blue · ΔE 25.9Slate grey · ΔE 29.7Dim grey · ΔE 31.2Light slate grey · ΔE 32.1Dark slateblue · ΔE 35
Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 23.38, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#682300
Analogous#006857, #001168
Triadic#680045, #456800
Split complementary#680011, #685700
Tetradic#570068, #682300, #116800

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#35BBFF
Lighter +30%#02AAFF
Lighter +20%#0089CE
Lighter +10%#00679B
Darker −10%#002335
Darker −20%#000102
Darker −30%#000000
Darker −40%#000000
More saturated +25%#004568
Less saturated −25%#0D415B

Channel breakdown

R0
G69
B104
Red0 (0%)
Green69 (27.1%)
Blue104 (40.8%)
Hue200.19°
Saturation (HSL)100%
Lightness20.39%
Dominant channelBlue
Hex per channelR 00 · G 45 · B 68

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Every value on this page was computed from “hex 004568” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.