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Recognised as Colour

#64387E

  • #64387E
  • Violet
  • Dark
  • Nearest: Dark slateblue

#64387E is a violet with RGB values 100, 56, 126 and HSL 278°, 38%, 36%. It is a dark colour, so white text on it reaches 8.7:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#64387E#64387E
HEX#64387E
RGBrgb(100, 56, 126)
RGB (0–1)0.3922, 0.2196, 0.4941
RGB percentages39.2%, 22%, 49.4%
HSLhsl(277.7, 38.5%, 35.7%)
HSV / HSBhsv(277.7, 55.6%, 49.4%)
CMYK20.6%, 55.6%, 0%, 50.6%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer6,568,062
CSS custom property--colour: #64387E;

Brightness & contrast

Relative luminance0.07044WCAG 2.x, 0 is black and 1 is white
Perceived brightness81.5 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 8.72:1
Contrast with white8.72:1WCAG normal text: AAA
Contrast with black2.41:1WCAG normal text: Fail
Greyscale equivalent#464646
Inverted#9BC781

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#254980no red cones; affects about 1% of men; ΔE 26.3 from the original
Deuteranopia#334C7Cno green cones; the most common form, about 1% of men; ΔE 26.9 from the original
Tritanopia#614455no blue cones; rare, and affects men and women equally; ΔE 32.1 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text8.72:1WCAG large text: AAA
Contrast with black, large text2.41:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 12.2Rebecca purple · ΔE 18.1Midnight blue · ΔE 23.7Purple · ΔE 26.5Slate blue · ΔE 29.1Medium purple · ΔE 29.5
Nearest named CSS colourDark slateblue (#483D8B)ΔE 12.15, a distinctly different colour
Hue familyviolet
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#527E38
Analogous#41387E, #7E3875
Triadic#7E6438, #387E64
Split complementary#757E38, #387E41
Tetradic#7E4138, #527E38, #38757E

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#C7A9D9
Lighter +30%#B086C9
Lighter +20%#9963B9
Lighter +10%#8048A1
Darker −10%#48285B
Darker −20%#2C1937
Darker −30%#100914
Darker −40%#000000
More saturated +25%#6A2195
Less saturated −25%#5E4F67

Channel breakdown

R100
G56
B126
Red100 (39.2%)
Green56 (22%)
Blue126 (49.4%)
Hue277.71°
Saturation (HSL)38.46%
Lightness35.69%
Dominant channelBlue
Hex per channelR 64 · G 38 · B 7E

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Every value on this page was computed from “64387e” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.