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Recognised as Colour

#667ECC

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

#667ECC is a blue with RGB values 102, 126, 204 and HSL 226°, 50%, 60%. It is a dark colour, so black text on it reaches 5.4:1 contrast (AA for normal text). The nearest named colour is Cornflower blue.

Colour values

#667ECC#667ECC
HEX#667ECC
RGBrgb(102, 126, 204)
RGB (0–1)0.4, 0.4941, 0.8
RGB percentages40%, 49.4%, 80%
HSLhsl(225.9, 50%, 60%)
HSV / HSBhsv(225.9, 50%, 80%)
CMYK50%, 38.2%, 0%, 20%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer6,717,132
CSS custom property--colour: #667ECC;

Brightness & contrast

Relative luminance0.22106WCAG 2.x, 0 is black and 1 is white
Perceived brightness131.1 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 5.42:1
Contrast with white3.87:1WCAG normal text: Fail
Contrast with black5.42:1WCAG normal text: AA
Greyscale equivalent#7F7F7F
Inverted#998133

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#6086CFno red cones; affects about 1% of men; ΔE 5.8 from the original
Deuteranopia#557DCAno green cones; the most common form, about 1% of men; ΔE 4.1 from the original
Tritanopia#3A8F9Bno blue cones; rare, and affects men and women equally; ΔE 45.3 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text3.87:1WCAG large text: AA
Contrast with black, large text5.42:1WCAG large text: AAA

Named colours

Cornflower blue · ΔE 10.6Steel blue · ΔE 20.4Dodgerblue · ΔE 21.1Medium purple · ΔE 24.8Royal blue · ΔE 26.5Dark slateblue · ΔE 26.7
Nearest named CSS colourCornflower blue (#6495ED)ΔE 10.57, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#CCB466
Analogous#66B1CC, #8166CC
Triadic#CC667E, #7ECC66
Split complementary#CC8166, #B1CC66
Tetradic#CC66B1, #CCB466, #66CC81

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FFFFFF
Lighter +30%#D9DFF2
Lighter +20%#B3BFE6
Lighter +10%#8C9ED9
Darker −10%#405EBF
Darker −20%#334B99
Darker −30%#263873
Darker −40%#1A264D
More saturated +25%#4D71E6
Less saturated −25%#808CB3

Channel breakdown

R102
G126
B204
Red102 (40%)
Green126 (49.4%)
Blue204 (80%)
Hue225.88°
Saturation (HSL)50%
Lightness60%
Dominant channelBlue
Hex per channelR 66 · G 7E · B CC

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