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Recognised as Colour

#641B7E

  • #641B7E
  • Violet
  • Dark
  • Nearest: Rebecca purple

#641B7E is a violet with RGB values 100, 27, 126 and HSL 284°, 65%, 30%. It is a dark colour, so white text on it reaches 10.5:1 contrast (AAA for normal text). The nearest named colour is Rebecca purple.

Colour values

#641B7E#641B7E
HEX#641B7E
RGBrgb(100, 27, 126)
RGB (0–1)0.3922, 0.1059, 0.4941
RGB percentages39.2%, 10.6%, 49.4%
HSLhsl(284.2, 64.7%, 30%)
HSV / HSBhsv(284.2, 78.6%, 49.4%)
CMYK20.6%, 78.6%, 0%, 50.6%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer6,560,638
CSS custom property--colour: #641B7E;

Brightness & contrast

Relative luminance0.05WCAG 2.x, 0 is black and 1 is white
Perceived brightness72.3 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 10.5:1
Contrast with white10.5:1WCAG normal text: AAA
Contrast with black2:1WCAG normal text: Fail
Greyscale equivalent#323232
Inverted#9BE481

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#003B81no red cones; affects about 1% of men; ΔE 34.2 from the original
Deuteranopia#17417Cno green cones; the most common form, about 1% of men; ΔE 38.7 from the original
Tritanopia#62314Cno blue cones; rare, and affects men and women equally; ΔE 39.9 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text10.5:1WCAG large text: AAA
Contrast with black, large text2:1WCAG large text: Fail

Named colours

Rebecca purple · ΔE 10.1Purple · ΔE 12.8Indigo · ΔE 15.1Dark magenta · ΔE 16.6Midnight blue · ΔE 21Dark slateblue · ΔE 21.5
Nearest named CSS colourRebecca purple (#663399)ΔE 10.08, a distinctly different colour
Hue familyviolet
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#357E1B
Analogous#331B7E, #7E1B66
Triadic#7E641B, #1B7E64
Split complementary#667E1B, #1B7E33
Tetradic#7E331B, #357E1B, #1B667E

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#CA81E4
Lighter +30%#B857DB
Lighter +20%#A72DD2
Lighter +10%#8524A8
Darker −10%#431254
Darker −20%#21092A
Darker −30%#000000
Darker −40%#000000
More saturated +25%#6D0891
Less saturated −25%#5B2E6B

Channel breakdown

R100
G27
B126
Red100 (39.2%)
Green27 (10.6%)
Blue126 (49.4%)
Hue284.24°
Saturation (HSL)64.71%
Lightness30%
Dominant channelBlue
Hex per channelR 64 · G 1B · B 7E

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Every value on this page was computed from “641b7e” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.