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Recognised as Colour

#A421CF

  • #A421CF
  • Violet
  • Dark
  • Nearest: Dark orchid

#A421CF is a violet with RGB values 164, 33, 207 and HSL 285°, 73%, 47%. It is a dark colour, so white text on it reaches 5.7:1 contrast (AA for normal text). The nearest named colour is Dark orchid.

Colour values

#A421CF#A421CF
HEX#A421CF
RGBrgb(164, 33, 207)
RGB (0–1)0.6431, 0.1294, 0.8118
RGB percentages64.3%, 12.9%, 81.2%
HSLhsl(285.2, 72.5%, 47.1%)
HSV / HSBhsv(285.2, 84.1%, 81.2%)
CMYK20.8%, 84.1%, 0%, 18.8%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer10,756,559
CSS custom property--colour: #A421CF;

Brightness & contrast

Relative luminance0.13485WCAG 2.x, 0 is black and 1 is white
Perceived brightness116.5 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 5.68:1
Contrast with white5.68:1WCAG normal text: AA
Contrast with black3.7:1WCAG normal text: Fail
Greyscale equivalent#494949
Inverted#5BDE30

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0060D3no red cones; affects about 1% of men; ΔE 50.9 from the original
Deuteranopia#146ACCno green cones; the most common form, about 1% of men; ΔE 59.5 from the original
Tritanopia#A04E7Cno blue cones; rare, and affects men and women equally; ΔE 61 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text5.68:1WCAG large text: AAA
Contrast with black, large text3.7:1WCAG large text: AA

Named colours

Dark orchid · ΔE 7.7Dark violet · ΔE 10.3Blue violet · ΔE 13.6Medium orchid · ΔE 22.2Dark magenta · ΔE 27.3Fuchsia · ΔE 30.6
Nearest named CSS colourDark orchid (#9932CC)ΔE 7.73, clearly different but related
Hue familyviolet
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#4CCF21
Analogous#4D21CF, #CF21A3
Triadic#CFA421, #21CFA4
Split complementary#A3CF21, #21CF4D
Tetradic#CF4D21, #4CCF21, #21A3CF

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#EAC6F6
Lighter +30%#DA9AEF
Lighter +20%#CA6EE8
Lighter +10%#BA42E1
Darker −10%#811AA3
Darker −20%#5E1377
Darker −30%#3B0C4B
Darker −40%#19051F
More saturated +25%#B303ED
Less saturated −25%#953FB1

Channel breakdown

R164
G33
B207
Red164 (64.3%)
Green33 (12.9%)
Blue207 (81.2%)
Hue285.17°
Saturation (HSL)72.5%
Lightness47.06%
Dominant channelBlue
Hex per channelR A4 · G 21 · B CF

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Every value on this page was computed from “a421cf” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.