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Recognised as Colour

#684BC6

  • #684BC6
  • Blue
  • Dark
  • Nearest: Slate blue

#684BC6 is a blue with RGB values 104, 75, 198 and HSL 254°, 52%, 54%. 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

#684BC6#684BC6
HEX#684BC6
RGBrgb(104, 75, 198)
RGB (0–1)0.4078, 0.2941, 0.7765
RGB percentages40.8%, 29.4%, 77.6%
HSLhsl(254.1, 51.9%, 53.5%)
HSV / HSBhsv(254.1, 62.1%, 77.6%)
CMYK47.5%, 62.1%, 0%, 22.4%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer6,835,142
CSS custom property--colour: #684BC6;

Brightness & contrast

Relative luminance0.12052WCAG 2.x, 0 is black and 1 is white
Perceived brightness104.9 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#5A5A5A
Inverted#97B439

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0064CAno red cones; affects about 1% of men; ΔE 26.7 from the original
Deuteranopia#005EC3no green cones; the most common form, about 1% of men; ΔE 25.5 from the original
Tritanopia#496881no blue cones; rare, and affects men and women equally; ΔE 63.3 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 7.9Medium slateblue · ΔE 12.1Rebecca purple · ΔE 15.6Medium purple · ΔE 17.9Royal blue · ΔE 18.1Dark orchid · ΔE 22.9
Nearest named CSS colourSlate blue (#6A5ACD)ΔE 7.9, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#A9C64B
Analogous#4B6CC6, #A54BC6
Triadic#C6684B, #4BC668
Split complementary#C6A54B, #6CC64B
Tetradic#C64B6C, #A9C64B, #4BC6A5

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#EAE6F7
Lighter +30%#C9BFEB
Lighter +20%#A998DF
Lighter +10%#8872D2
Darker −10%#5135A9
Darker −20%#3E2982
Darker −30%#2C1D5B
Darker −40%#191134
More saturated +25%#582DE4
Less saturated −25%#7869A8

Channel breakdown

R104
G75
B198
Red104 (40.8%)
Green75 (29.4%)
Blue198 (77.6%)
Hue254.15°
Saturation (HSL)51.9%
Lightness53.53%
Dominant channelBlue
Hex per channelR 68 · G 4B · B C6

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Every value on this page was computed from “684bc6” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.