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Recognised as Colour

#6669F9

  • #6669F9
  • Blue
  • Dark
  • Nearest: Medium slateblue

#6669F9 is a blue with RGB values 102, 105, 249 and HSL 239°, 92%, 69%. It is a dark colour, so black text on it reaches 5:1 contrast (AA for normal text). The nearest named colour is Medium slateblue.

Colour values

#6669F9#6669F9
HEX#6669F9
RGBrgb(102, 105, 249)
RGB (0–1)0.4, 0.4118, 0.9765
RGB percentages40%, 41.2%, 97.6%
HSLhsl(238.8, 92.5%, 68.8%)
HSV / HSBhsv(238.8, 59%, 97.6%)
CMYK59%, 57.8%, 0%, 2.4%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer6,711,801
CSS custom property--colour: #6669F9;

Brightness & contrast

Relative luminance0.19767WCAG 2.x, 0 is black and 1 is white
Perceived brightness129 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 4.95:1
Contrast with white4.24:1WCAG normal text: Fail
Contrast with black4.95:1WCAG normal text: AA
Greyscale equivalent#737373
Inverted#999606

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0081FEno red cones; affects about 1% of men; ΔE 22.6 from the original
Deuteranopia#0075F6no green cones; the most common form, about 1% of men; ΔE 17.8 from the original
Tritanopia#008CA7no blue cones; rare, and affects men and women equally; ΔE 79 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text4.24:1WCAG large text: AA
Contrast with black, large text4.95:1WCAG large text: AAA

Named colours

Medium slateblue · ΔE 7.3Royal blue · ΔE 15.9Slate blue · ΔE 16.5Medium purple · ΔE 22.9Dark orchid · ΔE 29.3Blue violet · ΔE 31.4
Nearest named CSS colourMedium slateblue (#7B68EE)ΔE 7.27, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#F9F666
Analogous#66B2F9, #AD66F9
Triadic#F96669, #69F966
Split complementary#F9AD66, #B2F966
Tetradic#F966B2, #F9F666, #66F9AD

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FFFFFF
Lighter +30%#F9F9FF
Lighter +20%#C8C9FD
Lighter +10%#9799FB
Darker −10%#3539F7
Darker −20%#090EF0
Darker −30%#070BBF
Darker −40%#06088D
More saturated +25%#6063FF
Less saturated −25%#7A7CE5

Channel breakdown

R102
G105
B249
Red102 (40%)
Green105 (41.2%)
Blue249 (97.6%)
Hue238.78°
Saturation (HSL)92.45%
Lightness68.82%
Dominant channelBlue
Hex per channelR 66 · G 69 · B F9

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Every value on this page was computed from “6669f9” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.