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Recognised as Colour

#683BB7

  • #683BB7
  • Violet
  • Dark
  • Nearest: Rebecca purple

#683BB7 is a violet with RGB values 104, 59, 183 and HSL 262°, 51%, 47%. It is a dark colour, so white text on it reaches 7.2:1 contrast (AAA for normal text). The nearest named colour is Rebecca purple.

Colour values

#683BB7#683BB7
HEX#683BB7
RGBrgb(104, 59, 183)
RGB (0–1)0.4078, 0.2314, 0.7176
RGB percentages40.8%, 23.1%, 71.8%
HSLhsl(261.8, 51.2%, 47.5%)
HSV / HSBhsv(261.8, 67.8%, 71.8%)
CMYK43.2%, 67.8%, 0%, 28.2%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer6,831,031
CSS custom property--colour: #683BB7;

Brightness & contrast

Relative luminance0.0949WCAG 2.x, 0 is black and 1 is white
Perceived brightness95.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 7.25:1
Contrast with white7.25:1WCAG normal text: AAA
Contrast with black2.9:1WCAG normal text: Fail
Greyscale equivalent#4E4E4E
Inverted#97C448

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0058BBno red cones; affects about 1% of men; ΔE 29.4 from the original
Deuteranopia#0055B4no green cones; the most common form, about 1% of men; ΔE 30.3 from the original
Tritanopia#535974no blue cones; rare, and affects men and women equally; ΔE 60.2 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text7.25:1WCAG large text: AAA
Contrast with black, large text2.9:1WCAG large text: Fail

Named colours

Rebecca purple · ΔE 12.8Slate blue · ΔE 13.8Medium slateblue · ΔE 17.7Indigo · ΔE 17.9Dark orchid · ΔE 19.4Medium purple · ΔE 22.4
Nearest named CSS colourRebecca purple (#663399)ΔE 12.82, a distinctly different colour
Hue familyviolet
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#8AB73B
Analogous#3B4CB7, #A63BB7
Triadic#B7683B, #3BB768
Split complementary#B7A63B, #4CB73B
Tetradic#B73B4C, #8AB73B, #3BB7A6

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#DBCFEF
Lighter +30%#BDA8E3
Lighter +20%#A081D7
Lighter +10%#835BCA
Darker −10%#522F90
Darker −20%#3C226A
Darker −30%#261643
Darker −40%#10091D
More saturated +25%#601DD5
Less saturated −25%#705999

Channel breakdown

R104
G59
B183
Red104 (40.8%)
Green59 (23.1%)
Blue183 (71.8%)
Hue261.77°
Saturation (HSL)51.24%
Lightness47.45%
Dominant channelBlue
Hex per channelR 68 · G 3B · B B7

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Every value on this page was computed from “683bb7” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.