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Recognised as Colour

#6439B0

  • #6439B0
  • Violet
  • Dark
  • Nearest: Rebecca purple

#6439B0 is a violet with RGB values 100, 57, 176 and HSL 262°, 51%, 46%. It is a dark colour, so white text on it reaches 7.6:1 contrast (AAA for normal text). The nearest named colour is Rebecca purple.

Colour values

#6439B0#6439B0
HEX#6439B0
RGBrgb(100, 57, 176)
RGB (0–1)0.3922, 0.2235, 0.6902
RGB percentages39.2%, 22.4%, 69%
HSLhsl(261.7, 51.1%, 45.7%)
HSV / HSBhsv(261.7, 67.6%, 69%)
CMYK43.2%, 67.6%, 0%, 31%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer6,568,368
CSS custom property--colour: #6439B0;

Brightness & contrast

Relative luminance0.0877WCAG 2.x, 0 is black and 1 is white
Perceived brightness91.8 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 7.63:1
Contrast with white7.63:1WCAG normal text: AAA
Contrast with black2.75:1WCAG normal text: Fail
Greyscale equivalent#4B4B4B
Inverted#9BC64F

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0055B4no red cones; affects about 1% of men; ΔE 28.7 from the original
Deuteranopia#0052AEno green cones; the most common form, about 1% of men; ΔE 29.1 from the original
Tritanopia#505670no blue cones; rare, and affects men and women equally; ΔE 58.2 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text7.63:1WCAG large text: AAA
Contrast with black, large text2.75:1WCAG large text: Fail

Named colours

Rebecca purple · ΔE 10.2Slate blue · ΔE 13.6Indigo · ΔE 16.7Medium slateblue · ΔE 19.2Dark orchid · ΔE 21.6Medium purple · ΔE 22.2
Nearest named CSS colourRebecca purple (#663399)ΔE 10.23, a distinctly different colour
Hue familyviolet
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#85B039
Analogous#394AB0, #9F39B0
Triadic#B06439, #39B064
Split complementary#B09F39, #4AB039
Tetradic#B0394A, #85B039, #39B09F

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#D5C8ED
Lighter +30%#B8A1E1
Lighter +20%#9B7BD4
Lighter +10%#7E54C8
Darker −10%#4E2D89
Darker −20%#382063
Darker −30%#22143C
Darker −40%#0C0716
More saturated +25%#5C1CCD
Less saturated −25%#6C5693

Channel breakdown

R100
G57
B176
Red100 (39.2%)
Green57 (22.4%)
Blue176 (69%)
Hue261.68°
Saturation (HSL)51.07%
Lightness45.69%
Dominant channelBlue
Hex per channelR 64 · G 39 · B B0

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Every value on this page was computed from “6439b0” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.