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Recognised as Colour

#AD21DD

  • #AD21DD
  • Violet
  • Dark
  • Nearest: Dark violet

#AD21DD is a violet with RGB values 173, 33, 221 and HSL 285°, 74%, 50%. It is a dark colour, so white text on it reaches 5.2:1 contrast (AA for normal text). The nearest named colour is Dark violet.

Colour values

#AD21DD#AD21DD
HEX#AD21DD
RGBrgb(173, 33, 221)
RGB (0–1)0.6784, 0.1294, 0.8667
RGB percentages67.8%, 12.9%, 86.7%
HSLhsl(284.7, 74%, 49.8%)
HSV / HSBhsv(284.7, 85.1%, 86.7%)
CMYK21.7%, 85.1%, 0%, 13.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer11,346,397
CSS custom property--colour: #AD21DD;

Brightness & contrast

Relative luminance0.15192WCAG 2.x, 0 is black and 1 is white
Perceived brightness123.1 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 5.2:1
Contrast with white5.2:1WCAG normal text: AA
Contrast with black4.04:1WCAG normal text: Fail
Greyscale equivalent#4C4C4C
Inverted#52DE22

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0066E2no red cones; affects about 1% of men; ΔE 52.9 from the original
Deuteranopia#0670D9no green cones; the most common form, about 1% of men; ΔE 62.7 from the original
Tritanopia#A95484no blue cones; rare, and affects men and women equally; ΔE 65.6 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text5.2:1WCAG large text: AAA
Contrast with black, large text4.04:1WCAG large text: AA

Named colours

Dark violet · ΔE 7.9Blue violet · ΔE 12Dark orchid · ΔE 13.1Fuchsia · ΔE 26.3Magenta · ΔE 26.3Medium orchid · ΔE 26.6
Nearest named CSS colourDark violet (#9400D3)ΔE 7.9, clearly different but related
Hue familyviolet
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#51DD21
Analogous#4F21DD, #DD21AF
Triadic#DDAD21, #21DDAD
Split complementary#AFDD21, #21DD4F
Tetradic#DD4F21, #51DD21, #21AFDD

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#EED2F8
Lighter +30%#DEA5F2
Lighter +20%#CE79EB
Lighter +10%#BE4DE4
Darker −10%#8A1AB1
Darker −20%#681484
Darker −30%#450D58
Darker −40%#22062C
More saturated +25%#BD01FD
Less saturated −25%#9D41BD

Channel breakdown

R173
G33
B221
Red173 (67.8%)
Green33 (12.9%)
Blue221 (86.7%)
Hue284.68°
Saturation (HSL)74.02%
Lightness49.8%
Dominant channelBlue
Hex per channelR AD · G 21 · B DD

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Every value on this page was computed from “ad21dd” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.