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Recognised as Colour

#6677DB

  • #6677DB
  • Blue
  • Dark
  • Nearest: Royal blue

#6677DB is a blue with RGB values 102, 119, 219 and HSL 231°, 62%, 63%. It is a dark colour, so black text on it reaches 5.2:1 contrast (AA for normal text). The nearest named colour is Royal blue.

Colour values

#6677DB#6677DB
HEX#6677DB
RGBrgb(102, 119, 219)
RGB (0–1)0.4, 0.4667, 0.8588
RGB percentages40%, 46.7%, 85.9%
HSLhsl(231.3, 61.9%, 62.9%)
HSV / HSBhsv(231.3, 53.4%, 85.9%)
CMYK53.4%, 45.7%, 0%, 14.1%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer6,715,355
CSS custom property--colour: #6677DB;

Brightness & contrast

Relative luminance0.21133WCAG 2.x, 0 is black and 1 is white
Perceived brightness130 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 5.23:1
Contrast with white4.02:1WCAG normal text: Fail
Contrast with black5.23:1WCAG normal text: AA
Greyscale equivalent#7B7B7B
Inverted#998824

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#4A84DFno red cones; affects about 1% of men; ΔE 12.1 from the original
Deuteranopia#3D7AD9no green cones; the most common form, about 1% of men; ΔE 9.9 from the original
Tritanopia#2D8D9Eno blue cones; rare, and affects men and women equally; ΔE 56.7 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text4.02:1WCAG large text: AA
Contrast with black, large text5.23:1WCAG large text: AAA

Named colours

Royal blue · ΔE 13.8Medium purple · ΔE 15.3Cornflower blue · ΔE 15.9Slate blue · ΔE 16.7Dodgerblue · ΔE 16.9Medium slateblue · ΔE 22.7
Nearest named CSS colourRoyal blue (#4169E1)ΔE 13.77, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#DBCA66
Analogous#66B2DB, #8F66DB
Triadic#DB6677, #77DB66
Split complementary#DB9066, #B2DB66
Tetradic#DB66B2, #DBCA66, #66DB8F

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FFFFFF
Lighter +30%#E2E5F8
Lighter +20%#B9C0EE
Lighter +10%#8F9CE5
Darker −10%#3D52D1
Darker −20%#2A3DB1
Darker −30%#202F88
Darker −40%#16215F
More saturated +25%#4E66F3
Less saturated −25%#7E88C3

Channel breakdown

R102
G119
B219
Red102 (40%)
Green119 (46.7%)
Blue219 (85.9%)
Hue231.28°
Saturation (HSL)61.9%
Lightness62.94%
Dominant channelBlue
Hex per channelR 66 · G 77 · B DB

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