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Recognised as Colour

#684BC0

  • #684BC0
  • Blue
  • Dark
  • Nearest: Slate blue

#684BC0 is a blue with RGB values 104, 75, 192 and HSL 255°, 48%, 52%. 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

#684BC0#684BC0
HEX#684BC0
RGBrgb(104, 75, 192)
RGB (0–1)0.4078, 0.2941, 0.7529
RGB percentages40.8%, 29.4%, 75.3%
HSLhsl(254.9, 48.1%, 52.4%)
HSV / HSBhsv(254.9, 60.9%, 75.3%)
CMYK45.8%, 60.9%, 0%, 24.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer6,835,136
CSS custom property--colour: #684BC0;

Brightness & contrast

Relative luminance0.11781WCAG 2.x, 0 is black and 1 is white
Perceived brightness103.6 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 6.26:1
Contrast with white6.26:1WCAG normal text: AA
Contrast with black3.36:1WCAG normal text: Fail
Greyscale equivalent#5A5A5A
Inverted#97B43F

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0063C4no red cones; affects about 1% of men; ΔE 26.7 from the original
Deuteranopia#005EBEno green cones; the most common form, about 1% of men; ΔE 25.8 from the original
Tritanopia#4D667Eno blue cones; rare, and affects men and women equally; ΔE 59.8 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text6.26:1WCAG large text: AAA
Contrast with black, large text3.36:1WCAG large text: AA

Named colours

Slate blue · ΔE 6.4Rebecca purple · ΔE 13.2Medium slateblue · ΔE 13.8Medium purple · ΔE 16.4Royal blue · ΔE 17.8Dark slateblue · ΔE 23.5
Nearest named CSS colourSlate blue (#6A5ACD)ΔE 6.41, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#A3C04B
Analogous#4B68C0, #A34BC0
Triadic#C0684B, #4BC068
Split complementary#C0A34B, #69C04B
Tetradic#C04B68, #A3C04B, #4BC0A3

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#E7E2F5
Lighter +30%#C7BCE8
Lighter +20%#A797DA
Lighter +10%#8871CD
Darker −10%#5238A0
Darker −20%#3E2B7A
Darker −30%#2B1E54
Darker −40%#18102F
More saturated +25%#592DDE
Less saturated −25%#7769A2

Channel breakdown

R104
G75
B192
Red104 (40.8%)
Green75 (29.4%)
Blue192 (75.3%)
Hue254.87°
Saturation (HSL)48.15%
Lightness52.35%
Dominant channelBlue
Hex per channelR 68 · G 4B · B C0

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Every value on this page was computed from “684bc0” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.