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Recognised as Colour

#685AC0

  • #685AC0
  • Blue
  • Dark
  • Nearest: Slate blue

#685AC0 is a blue with RGB values 104, 90, 192 and HSL 248°, 45%, 55%. It is a dark colour, so white text on it reaches 5.5:1 contrast (AA for normal text). The nearest named colour is Slate blue.

Colour values

#685AC0#685AC0
HEX#685AC0
RGBrgb(104, 90, 192)
RGB (0–1)0.4078, 0.3529, 0.7529
RGB percentages40.8%, 35.3%, 75.3%
HSLhsl(248.2, 44.7%, 55.3%)
HSV / HSBhsv(248.2, 53.1%, 75.3%)
CMYK45.8%, 53.1%, 0%, 24.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer6,838,976
CSS custom property--colour: #685AC0;

Brightness & contrast

Relative luminance0.14061WCAG 2.x, 0 is black and 1 is white
Perceived brightness110.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 5.51:1
Contrast with white5.51:1WCAG normal text: AA
Contrast with black3.81:1WCAG normal text: Fail
Greyscale equivalent#646464
Inverted#97A53F

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#276CC4no red cones; affects about 1% of men; ΔE 21.3 from the original
Deuteranopia#2566BEno green cones; the most common form, about 1% of men; ΔE 19.9 from the original
Tritanopia#4C7084no blue cones; rare, and affects men and women equally; ΔE 53.6 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text5.51:1WCAG large text: AAA
Contrast with black, large text3.81:1WCAG large text: AA

Named colours

Slate blue · ΔE 7.4Medium purple · ΔE 11.9Royal blue · ΔE 14.8Rebecca purple · ΔE 16.7Dark slateblue · ΔE 17.6Medium slateblue · ΔE 18.2
Nearest named CSS colourSlate blue (#6A5ACD)ΔE 7.35, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#B2C05A
Analogous#5A7FC0, #9B5AC0
Triadic#C0685A, #5AC068
Split complementary#C09B5A, #7FC05A
Tetradic#C05A7F, #B2C05A, #5AC09B

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#EFEEF8
Lighter +30%#CDC9EA
Lighter +20%#ACA4DC
Lighter +10%#8A7FCE
Darker −10%#4E40A7
Darker −20%#3D3282
Darker −30%#2C245D
Darker −40%#1A1638
More saturated +25%#533EDD
Less saturated −25%#7D77A3

Channel breakdown

R104
G90
B192
Red104 (40.8%)
Green90 (35.3%)
Blue192 (75.3%)
Hue248.24°
Saturation (HSL)44.74%
Lightness55.29%
Dominant channelBlue
Hex per channelR 68 · G 5A · B C0

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Every value on this page was computed from “685ac0” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.