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Recognised as Colour

#684DC0

  • #684DC0
  • Blue
  • Dark
  • Nearest: Slate blue

#684DC0 is a blue with RGB values 104, 77, 192 and HSL 254°, 48%, 53%. It is a dark colour, so white text on it reaches 6.2:1 contrast (AA for normal text). The nearest named colour is Slate blue.

Colour values

#684DC0#684DC0
HEX#684DC0
RGBrgb(104, 77, 192)
RGB (0–1)0.4078, 0.302, 0.7529
RGB percentages40.8%, 30.2%, 75.3%
HSLhsl(254.1, 47.7%, 52.7%)
HSV / HSBhsv(254.1, 59.9%, 75.3%)
CMYK45.8%, 59.9%, 0%, 24.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer6,835,648
CSS custom property--colour: #684DC0;

Brightness & contrast

Relative luminance0.12057WCAG 2.x, 0 is black and 1 is white
Perceived brightness104.5 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 6.16:1
Contrast with white6.16:1WCAG normal text: AA
Contrast with black3.41:1WCAG normal text: Fail
Greyscale equivalent#5B5B5B
Inverted#97B23F

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0064C4no red cones; affects about 1% of men; ΔE 26.2 from the original
Deuteranopia#005FBEno green cones; the most common form, about 1% of men; ΔE 25.3 from the original
Tritanopia#4D677Fno blue cones; rare, and affects men and women equally; ΔE 58.6 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text6.16:1WCAG large text: AAA
Contrast with black, large text3.41:1WCAG large text: AA

Named colours

Slate blue · ΔE 5.4Rebecca purple · ΔE 13.2Medium slateblue · ΔE 14Medium purple · ΔE 15.4Royal blue · ΔE 17Dark slateblue · ΔE 22.5
Nearest named CSS colourSlate blue (#6A5ACD)ΔE 5.38, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#A5C04D
Analogous#4D6CC0, #A24DC0
Triadic#C0684D, #4DC068
Split complementary#C0A24D, #6CC04D
Tetradic#C04D6C, #A5C04D, #4DC0A2

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#E8E4F5
Lighter +30%#C8BEE8
Lighter +20%#A898DB
Lighter +10%#8873CD
Darker −10%#5139A1
Darker −20%#3E2C7B
Darker −30%#2B1E56
Darker −40%#181130
More saturated +25%#582FDE
Less saturated −25%#786BA2

Channel breakdown

R104
G77
B192
Red104 (40.8%)
Green77 (30.2%)
Blue192 (75.3%)
Hue254.09°
Saturation (HSL)47.72%
Lightness52.75%
Dominant channelBlue
Hex per channelR 68 · G 4D · B C0

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Every value on this page was computed from “684dc0” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.