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Colour

#669AFF

  • #669AFF
  • Blue
  • Dark
  • Nearest: Cornflower blue

#669AFF is a blue with RGB values 102, 154, 255 and HSL 220°, 100%, 70%. It is a dark colour, so black text on it reaches 7.6:1 contrast (AAA for normal text). The nearest named colour is Cornflower blue.

Colour values

#669AFF#669AFF
HEX#669AFF
RGBrgb(102, 154, 255)
RGB (0–1)0.4, 0.6039, 1
RGB percentages40%, 60.4%, 100%
HSLhsl(219.6, 100%, 70%)
HSV / HSBhsv(219.6, 60%, 100%)
CMYK60%, 39.6%, 0%, 0%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer6,724,351
CSS custom property--colour: #669AFF;

Brightness & contrast

Relative luminance0.33156WCAG 2.x, 0 is black and 1 is white
Perceived brightness156.3 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 7.63:1
Contrast with white2.75:1WCAG normal text: Fail
Contrast with black7.63:1WCAG normal text: AAA
Greyscale equivalent#969696
Inverted#996500

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#6EA3FFno red cones; affects about 1% of men; ΔE 6.4 from the original
Deuteranopia#5995FDno green cones; the most common form, about 1% of men; ΔE 3 from the original
Tritanopia#00B1C0no blue cones; rare, and affects men and women equally; ΔE 57.9 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text2.75:1WCAG large text: Fail
Contrast with black, large text7.63:1WCAG large text: AAA

Named colours

Cornflower blue · ΔE 7.3Dodgerblue · ΔE 9.7Royal blue · ΔE 23.5Medium purple · ΔE 26.5Slate blue · ΔE 30.2Steel blue · ΔE 30.9
Nearest named CSS colourCornflower blue (#6495ED)ΔE 7.33, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#FFCB66
Analogous#66E6FF, #7F66FF
Triadic#FF669A, #9AFF66
Split complementary#FF7F66, #E6FF66
Tetradic#FF66E6, #FFCB66, #66FF7F

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FFFFFF
Lighter +30%#FFFFFF
Lighter +20%#CCDDFF
Lighter +10%#99BCFF
Darker −10%#3378FF
Darker −20%#0057FF
Darker −30%#0045CC
Darker −40%#003499
More saturated +25%#669AFF
Less saturated −25%#79A0EC

Channel breakdown

R102
G154
B255
Red102 (40%)
Green154 (60.4%)
Blue255 (100%)
Hue219.61°
Saturation (HSL)100%
Lightness70%
Dominant channelBlue
Hex per channelR 66 · G 9A · B FF

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Every value on this page was computed from “669aff” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.