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Recognised as Colour

#6628BB

  • #6628BB
  • Violet
  • Dark
  • Nearest: Dark orchid

#6628BB is a violet with RGB values 102, 40, 187 and HSL 265°, 65%, 45%. It is a dark colour, so white text on it reaches 8.1:1 contrast (AAA for normal text). The nearest named colour is Dark orchid.

Colour values

#6628BB#6628BB
HEX#6628BB
RGBrgb(102, 40, 187)
RGB (0–1)0.4, 0.1569, 0.7333
RGB percentages40%, 15.7%, 73.3%
HSLhsl(265.3, 64.8%, 44.5%)
HSV / HSBhsv(265.3, 78.6%, 73.3%)
CMYK45.5%, 78.6%, 0%, 26.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer6,695,099
CSS custom property--colour: #6628BB;

Brightness & contrast

Relative luminance0.0793WCAG 2.x, 0 is black and 1 is white
Perceived brightness89.6 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 8.12:1
Contrast with white8.12:1WCAG normal text: AAA
Contrast with black2.59:1WCAG normal text: Fail
Greyscale equivalent#404040
Inverted#99D744

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0050BFno red cones; affects about 1% of men; ΔE 32.3 from the original
Deuteranopia#004DB8no green cones; the most common form, about 1% of men; ΔE 33.2 from the original
Tritanopia#4E5171no blue cones; rare, and affects men and women equally; ΔE 68.6 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text8.12:1WCAG large text: AAA
Contrast with black, large text2.59:1WCAG large text: Fail

Named colours

Dark orchid · ΔE 14.1Blue violet · ΔE 17.9Indigo · ΔE 19.1Dark blue · ΔE 20.2Dark violet · ΔE 21Navy · ΔE 22.8
Nearest named CSS colourDark orchid (#9932CC)ΔE 14.1, a distinctly different colour
Hue familyviolet
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#7DBB28
Analogous#2834BB, #AF28BB
Triadic#BB6628, #28BB66
Split complementary#BBAF28, #34BB28
Tetradic#BB2834, #7DBB28, #28BBAF

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#D3BEF1
Lighter +30%#B794E8
Lighter +20%#9B6ADF
Lighter +10%#7F40D6
Darker −10%#4F1F91
Darker −20%#381667
Darker −30%#210D3D
Darker −40%#0A0413
More saturated +25%#620CD7
Less saturated −25%#6A449F

Channel breakdown

R102
G40
B187
Red102 (40%)
Green40 (15.7%)
Blue187 (73.3%)
Hue265.31°
Saturation (HSL)64.76%
Lightness44.51%
Dominant channelBlue
Hex per channelR 66 · G 28 · B BB

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Every value on this page was computed from “6628bb” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.