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Recognised as Colour

#6621AE

  • #6621AE
  • Violet
  • Dark
  • Nearest: Indigo

#6621AE is a violet with RGB values 102, 33, 174 and HSL 269°, 68%, 41%. It is a dark colour, so white text on it reaches 8.8:1 contrast (AAA for normal text). The nearest named colour is Indigo.

Colour values

#6621AE#6621AE
HEX#6621AE
RGBrgb(102, 33, 174)
RGB (0–1)0.4, 0.1294, 0.6824
RGB percentages40%, 12.9%, 68.2%
HSLhsl(269.4, 68.1%, 40.6%)
HSV / HSBhsv(269.4, 81%, 68.2%)
CMYK41.4%, 81%, 0%, 31.8%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer6,693,294
CSS custom property--colour: #6621AE;

Brightness & contrast

Relative luminance0.06968WCAG 2.x, 0 is black and 1 is white
Perceived brightness84.9 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 8.77:1
Contrast with white8.77:1WCAG normal text: AAA
Contrast with black2.39:1WCAG normal text: Fail
Greyscale equivalent#3A3A3A
Inverted#99DE51

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#004AB2no red cones; affects about 1% of men; ΔE 32.9 from the original
Deuteranopia#0049ABno green cones; the most common form, about 1% of men; ΔE 35.3 from the original
Tritanopia#554968no blue cones; rare, and affects men and women equally; ΔE 63.4 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text8.77:1WCAG large text: AAA
Contrast with black, large text2.39:1WCAG large text: Fail

Named colours

Indigo · ΔE 14.8Dark orchid · ΔE 14.8Dark blue · ΔE 19.2Rebecca purple · ΔE 19.7Navy · ΔE 20.9Blue violet · ΔE 21.6
Nearest named CSS colourIndigo (#4B0082)ΔE 14.75, a distinctly different colour
Hue familyviolet
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#69AE21
Analogous#2123AE, #AC21AE
Triadic#AE6621, #21AE66
Split complementary#AEAC21, #23AE21
Tetradic#AE2123, #69AE21, #21AEAC

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#CDACEF
Lighter +30%#B381E7
Lighter +20%#9956DF
Lighter +10%#7F2BD7
Darker −10%#4D1983
Darker −20%#341158
Darker −30%#1B092D
Darker −40%#010003
More saturated +25%#6507C8
Less saturated −25%#673B94

Channel breakdown

R102
G33
B174
Red102 (40%)
Green33 (12.9%)
Blue174 (68.2%)
Hue269.36°
Saturation (HSL)68.12%
Lightness40.59%
Dominant channelBlue
Hex per channelR 66 · G 21 · B AE

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Every value on this page was computed from “6621ae” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.