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Recognised as Colour

#667FE3

  • #667FE3
  • Blue
  • Dark
  • Nearest: Cornflower blue

#667FE3 is a blue with RGB values 102, 127, 227 and HSL 228°, 69%, 65%. It is a dark colour, so black text on it reaches 5.7:1 contrast (AA for normal text). The nearest named colour is Cornflower blue.

Colour values

#667FE3#667FE3
HEX#667FE3
RGBrgb(102, 127, 227)
RGB (0–1)0.4, 0.498, 0.8902
RGB percentages40%, 49.8%, 89%
HSLhsl(228, 69.1%, 64.5%)
HSV / HSBhsv(228, 55.1%, 89%)
CMYK55.1%, 44.1%, 0%, 11%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer6,717,411
CSS custom property--colour: #667FE3;

Brightness & contrast

Relative luminance0.2355WCAG 2.x, 0 is black and 1 is white
Perceived brightness135.8 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 5.71:1
Contrast with white3.68:1WCAG normal text: Fail
Contrast with black5.71:1WCAG normal text: AA
Greyscale equivalent#818181
Inverted#99801C

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#538BE7no red cones; affects about 1% of men; ΔE 9.9 from the original
Deuteranopia#4380E1no green cones; the most common form, about 1% of men; ΔE 7.7 from the original
Tritanopia#1E95A6no blue cones; rare, and affects men and women equally; ΔE 57.2 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text3.68:1WCAG large text: AA
Contrast with black, large text5.71:1WCAG large text: AAA

Named colours

Cornflower blue · ΔE 12.9Dodgerblue · ΔE 14.2Royal blue · ΔE 15.4Medium purple · ΔE 17.6Slate blue · ΔE 19.8Medium slateblue · ΔE 24.6
Nearest named CSS colourCornflower blue (#6495ED)ΔE 12.87, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#E3CA66
Analogous#66BEE3, #8B66E3
Triadic#E3667F, #7FE366
Split complementary#E38B66, #BDE366
Tetradic#E366BE, #E3CA66, #66E38B

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FFFFFF
Lighter +30%#E7EBFB
Lighter +20%#BCC7F3
Lighter +10%#91A3EB
Darker −10%#3B5BDB
Darker −20%#2342C0
Darker −30%#1B3495
Darker −40%#13256A
More saturated +25%#4F71FA
Less saturated −25%#7D8DCC

Channel breakdown

R102
G127
B227
Red102 (40%)
Green127 (49.8%)
Blue227 (89%)
Hue228°
Saturation (HSL)69.06%
Lightness64.51%
Dominant channelBlue
Hex per channelR 66 · G 7F · B E3

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Every value on this page was computed from “667fe3” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.