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Colour

#669BE3

  • #669BE3
  • Blue
  • Dark
  • Nearest: Cornflower blue

#669BE3 is a blue with RGB values 102, 155, 227 and HSL 215°, 69%, 65%. It is a dark colour, so black text on it reaches 7.4:1 contrast (AAA for normal text). The nearest named colour is Cornflower blue.

Colour values

#669BE3#669BE3
HEX#669BE3
RGBrgb(102, 155, 227)
RGB (0–1)0.4, 0.6078, 0.8902
RGB percentages40%, 60.8%, 89%
HSLhsl(214.6, 69.1%, 64.5%)
HSV / HSBhsv(214.6, 55.1%, 89%)
CMYK55.1%, 31.7%, 0%, 11%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer6,724,579
CSS custom property--colour: #669BE3;

Brightness & contrast

Relative luminance0.31814WCAG 2.x, 0 is black and 1 is white
Perceived brightness151.9 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 7.36:1
Contrast with white2.85:1WCAG normal text: Fail
Contrast with black7.36:1WCAG normal text: AAA
Greyscale equivalent#959595
Inverted#99641C

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#7EA0E6no red cones; affects about 1% of men; ΔE 5.3 from the original
Deuteranopia#6E94E2no green cones; the most common form, about 1% of men; ΔE 6 from the original
Tritanopia#0EABB5no blue cones; rare, and affects men and women equally; ΔE 43.9 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text2.85:1WCAG large text: Fail
Contrast with black, large text7.36:1WCAG large text: AAA

Named colours

Cornflower blue · ΔE 9.9Steel blue · ΔE 16.1Deep skyblue · ΔE 22.8Dodgerblue · ΔE 23Light skyblue · ΔE 25.4Light steelblue · ΔE 31
Nearest named CSS colourCornflower blue (#6495ED)ΔE 9.86, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#E3AE66
Analogous#66DAE3, #6F66E3
Triadic#E3669B, #9BE366
Split complementary#E37066, #D9E366
Tetradic#E366DA, #E3AE66, #66E370

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FFFFFF
Lighter +30%#E7F0FB
Lighter +20%#BCD3F3
Lighter +10%#91B7EB
Darker −10%#3B7FDB
Darker −20%#2366C0
Darker −30%#1B4F95
Darker −40%#13386A
More saturated +25%#4F98FA
Less saturated −25%#7D9ECC

Channel breakdown

R102
G155
B227
Red102 (40%)
Green155 (60.8%)
Blue227 (89%)
Hue214.56°
Saturation (HSL)69.06%
Lightness64.51%
Dominant channelBlue
Hex per channelR 66 · G 9B · B E3

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Every value on this page was computed from “669be3” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.