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Colour

#669AE3

  • #669AE3
  • Blue
  • Dark
  • Nearest: Cornflower blue

#669AE3 is a blue with RGB values 102, 154, 227 and HSL 215°, 69%, 65%. It is a dark colour, so black text on it reaches 7.3:1 contrast (AAA for normal text). The nearest named colour is Cornflower blue.

Colour values

#669AE3#669AE3
HEX#669AE3
RGBrgb(102, 154, 227)
RGB (0–1)0.4, 0.6039, 0.8902
RGB percentages40%, 60.4%, 89%
HSLhsl(215, 69.1%, 64.5%)
HSV / HSBhsv(215, 55.1%, 89%)
CMYK55.1%, 32.2%, 0%, 11%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer6,724,323
CSS custom property--colour: #669AE3;

Brightness & contrast

Relative luminance0.31482WCAG 2.x, 0 is black and 1 is white
Perceived brightness151.3 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 7.3:1
Contrast with white2.88:1WCAG normal text: Fail
Contrast with black7.3:1WCAG normal text: AAA
Greyscale equivalent#949494
Inverted#99651C

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#7C9FE6no red cones; affects about 1% of men; ΔE 4.8 from the original
Deuteranopia#6D93E1no green cones; the most common form, about 1% of men; ΔE 5.4 from the original
Tritanopia#0FAAB4no blue cones; rare, and affects men and women equally; ΔE 44.5 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text2.88:1WCAG large text: Fail
Contrast with black, large text7.3:1WCAG large text: AAA

Named colours

Cornflower blue · ΔE 9.1Steel blue · ΔE 16.4Dodgerblue · ΔE 22.4Deep skyblue · ΔE 23.4Light skyblue · ΔE 26.1Light steelblue · ΔE 31.5
Nearest named CSS colourCornflower blue (#6495ED)ΔE 9.13, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#E3AF66
Analogous#66D9E3, #7066E3
Triadic#E3669A, #9AE366
Split complementary#E37066, #D9E366
Tetradic#E366D9, #E3AF66, #66E370

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FFFFFF
Lighter +30%#E7EFFB
Lighter +20%#BCD3F3
Lighter +10%#91B6EB
Darker −10%#3B7EDB
Darker −20%#2364C0
Darker −30%#1B4E95
Darker −40%#13376A
More saturated +25%#4F96FA
Less saturated −25%#7D9ECC

Channel breakdown

R102
G154
B227
Red102 (40%)
Green154 (60.4%)
Blue227 (89%)
Hue215.04°
Saturation (HSL)69.06%
Lightness64.51%
Dominant channelBlue
Hex per channelR 66 · G 9A · B E3

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Every value on this page was computed from “669ae3” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.