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Colour

#6677AA

  • #6677AA
  • Blue
  • Dark
  • Nearest: Steel blue

#6677AA is a blue with RGB values 102, 119, 170 and HSL 225°, 29%, 53%. It is a dark colour, so black text on it reaches 4.8:1 contrast (AA for normal text). The nearest named colour is Steel blue.

Colour values

#6677AA#6677AA
HEX#6677AA
HEX (short)#67A
RGBrgb(102, 119, 170)
RGB (0–1)0.4, 0.4667, 0.6667
RGB percentages40%, 46.7%, 66.7%
HSLhsl(225, 28.6%, 53.3%)
HSV / HSBhsv(225, 40%, 66.7%)
CMYK40%, 30%, 0%, 33.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer6,715,306
CSS custom property--colour: #6677AA;

Brightness & contrast

Relative luminance0.18921WCAG 2.x, 0 is black and 1 is white
Perceived brightness121.3 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 4.78:1
Contrast with white4.39:1WCAG normal text: Fail
Contrast with black4.78:1WCAG normal text: AA
Greyscale equivalent#777777
Inverted#998855

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#667CACno red cones; affects about 1% of men; ΔE 3.1 from the original
Deuteranopia#6076A9no green cones; the most common form, about 1% of men; ΔE 1.6 from the original
Tritanopia#508189no blue cones; rare, and affects men and women equally; ΔE 29 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text4.39:1WCAG large text: AA
Contrast with black, large text4.78:1WCAG large text: AAA

Named colours

Steel blue · ΔE 11.6Slate grey · ΔE 20.9Light slate grey · ΔE 21Cornflower blue · ΔE 23.2Gray · ΔE 30.2Dark slateblue · ΔE 30.3
Nearest named CSS colourSteel blue (#4682B4)ΔE 11.62, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#AA9966
Analogous#6699AA, #7766AA
Triadic#AA6677, #77AA66
Split complementary#AA7766, #99AA66
Tetradic#AA6699, #AA9966, #66AA77

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#E9ECF3
Lighter +30%#C8CEE1
Lighter +20%#A8B1CE
Lighter +10%#8794BC
Darker −10%#4F5F8E
Darker −20%#3D496D
Darker −30%#2B334D
Darker −40%#181D2C
More saturated +25%#4868C8
Less saturated −25%#84868C

Channel breakdown

R102
G119
B170
Red102 (40%)
Green119 (46.7%)
Blue170 (66.7%)
Hue225°
Saturation (HSL)28.57%
Lightness53.33%
Dominant channelBlue
Hex per channelR 66 · G 77 · B AA

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Every value on this page was computed from “6677aa” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.