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Recognised as Colour

#64728D

  • #64728D
  • Blue
  • Dark
  • Nearest: Slate grey

#64728D is a blue with RGB values 100, 114, 141 and HSL 220°, 17%, 47%. It is a dark colour, so white text on it reaches 4.8:1 contrast (AA for normal text). The nearest named colour is Slate grey.

Colour values

#64728D#64728D
HEX#64728D
RGBrgb(100, 114, 141)
RGB (0–1)0.3922, 0.4471, 0.5529
RGB percentages39.2%, 44.7%, 55.3%
HSLhsl(219.5, 17%, 47.3%)
HSV / HSBhsv(219.5, 29.1%, 55.3%)
CMYK29.1%, 19.1%, 0%, 44.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer6,582,925
CSS custom property--colour: #64728D;

Brightness & contrast

Relative luminance0.16667WCAG 2.x, 0 is black and 1 is white
Perceived brightness113.5 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 4.85:1
Contrast with white4.85:1WCAG normal text: AA
Contrast with black4.33:1WCAG normal text: Fail
Greyscale equivalent#717171
Inverted#9B8D72

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#69748Eno red cones; affects about 1% of men; ΔE 1.5 from the original
Deuteranopia#65708Cno green cones; the most common form, about 1% of men; ΔE 1.4 from the original
Tritanopia#59777Bno blue cones; rare, and affects men and women equally; ΔE 15.5 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text4.85:1WCAG large text: AAA
Contrast with black, large text4.33:1WCAG large text: AA

Named colours

Slate grey · ΔE 8.5Light slate grey · ΔE 10.3Dim grey · ΔE 16.9Steel blue · ΔE 17.3Gray · ΔE 17.5Dark slate grey · ΔE 24.7
Nearest named CSS colourSlate grey (#708090)ΔE 8.48, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#8D7F64
Analogous#64878D, #6A648D
Triadic#8D6472, #728D64
Split complementary#8D6A64, #868D64
Tetradic#8D6487, #8D7F64, #648D6A

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#D9DDE4
Lighter +30%#BBC2CF
Lighter +20%#9DA7BA
Lighter +10%#7F8CA5
Darker −10%#4F5A6F
Darker −20%#3A4251
Darker −30%#252A33
Darker −40%#0F1216
More saturated +25%#4668AB
Less saturated −25%#787878

Channel breakdown

R100
G114
B141
Red100 (39.2%)
Green114 (44.7%)
Blue141 (55.3%)
Hue219.51°
Saturation (HSL)17.01%
Lightness47.25%
Dominant channelBlue
Hex per channelR 64 · G 72 · B 8D

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Every value on this page was computed from “64728d” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.