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Recognised as Colour

#684FB1

  • #684FB1
  • Violet
  • Dark
  • Nearest: Slate blue

#684FB1 is a violet with RGB values 104, 79, 177 and HSL 255°, 39%, 50%. It is a dark colour, so white text on it reaches 6.3:1 contrast (AA for normal text). The nearest named colour is Slate blue.

Colour values

#684FB1#684FB1
HEX#684FB1
RGBrgb(104, 79, 177)
RGB (0–1)0.4078, 0.3098, 0.6941
RGB percentages40.8%, 31%, 69.4%
HSLhsl(255.3, 38.6%, 50.2%)
HSV / HSBhsv(255.3, 55.4%, 69.4%)
CMYK41.2%, 55.4%, 0%, 30.6%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer6,836,145
CSS custom property--colour: #684FB1;

Brightness & contrast

Relative luminance0.11709WCAG 2.x, 0 is black and 1 is white
Perceived brightness102.3 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 6.28:1
Contrast with white6.28:1WCAG normal text: AA
Contrast with black3.34:1WCAG normal text: Fail
Greyscale equivalent#5B5B5B
Inverted#97B04E

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#1E62B4no red cones; affects about 1% of men; ΔE 24.2 from the original
Deuteranopia#245EAFno green cones; the most common form, about 1% of men; ΔE 22.9 from the original
Tritanopia#546478no blue cones; rare, and affects men and women equally; ΔE 50 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text6.28:1WCAG large text: AAA
Contrast with black, large text3.34:1WCAG large text: AA

Named colours

Slate blue · ΔE 10.2Rebecca purple · ΔE 12Dark slateblue · ΔE 14.4Medium purple · ΔE 14.6Royal blue · ΔE 19.4Medium slateblue · ΔE 21.3
Nearest named CSS colourSlate blue (#6A5ACD)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#98B14F
Analogous#4F67B1, #994FB1
Triadic#B1684F, #4FB168
Split complementary#B1994F, #67B14F
Tetradic#B14F67, #98B14F, #4FB199

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#E1DCF0
Lighter +30%#C3B9E0
Lighter +20%#A596D0
Lighter +10%#8672C1
Darker −10%#533F8E
Darker −20%#3E2F6B
Darker −30%#2A2047
Darker −40%#151024
More saturated +25%#582FD1
Less saturated −25%#786F91

Channel breakdown

R104
G79
B177
Red104 (40.8%)
Green79 (31%)
Blue177 (69.4%)
Hue255.31°
Saturation (HSL)38.58%
Lightness50.2%
Dominant channelBlue
Hex per channelR 68 · G 4F · B B1

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Every value on this page was computed from “684fb1” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.