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Recognised as Colour

#AC51A4

  • #AC51A4
  • Magenta
  • Dark
  • Nearest: Orchid

#AC51A4 is a magenta with RGB values 172, 81, 164 and HSL 305°, 36%, 50%. It is a dark colour, so white text on it reaches 4.7:1 contrast (AA for normal text). The nearest named colour is Orchid.

Colour values

#AC51A4#AC51A4
HEX#AC51A4
RGBrgb(172, 81, 164)
RGB (0–1)0.6745, 0.3176, 0.6431
RGB percentages67.5%, 31.8%, 64.3%
HSLhsl(305.3, 36%, 49.6%)
HSV / HSBhsv(305.3, 52.9%, 67.5%)
CMYK0%, 52.9%, 4.7%, 32.5%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer11,293,092
CSS custom property--colour: #AC51A4;

Brightness & contrast

Relative luminance0.17336WCAG 2.x, 0 is black and 1 is white
Perceived brightness125.6 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 4.7:1
Contrast with white4.7:1WCAG normal text: AA
Contrast with black4.47:1WCAG normal text: Fail
Greyscale equivalent#6A6A6A
Inverted#53AE5B

Colour vision & accessibility

Protanopia#4D6CA7no red cones; affects about 1% of men; ΔE 42.8 from the original
Deuteranopia#6878A1no green cones; the most common form, about 1% of men; ΔE 44.3 from the original
Tritanopia#B25973no blue cones; rare, and affects men and women equally; ΔE 31.7 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text4.7:1WCAG large text: AAA
Contrast with black, large text4.47:1WCAG large text: AA

Named colours

Nearest named CSS colourOrchid (#DA70D6)ΔE 16.89, a distinctly different colour
Hue familymagenta
CSS keyword usableNo exact keyword

Colour harmonies

Complementary#51AC59
Analogous#8651AC, #AC5177
Triadic#A4AC51, #51A4AC
Split complementary#77AC51, #51AC86
Tetradic#AC8651, #51AC59, #5177AC

Tints, shades & saturation

Lighter +40%#EEDBEC
Lighter +30%#DEB8DA
Lighter +20%#CD96C8
Lighter +10%#BD73B7
Darker −10%#894183
Darker −20%#673062
Darker −30%#442041
Darker −40%#211020
More saturated +25%#CC31BE
Less saturated −25%#8C718A

Channel breakdown

R172
G81
B164
Red172 (67.5%)
Green81 (31.8%)
Blue164 (64.3%)
Hue305.27°
Saturation (HSL)35.97%
Lightness49.61%
Dominant channelRed
Hex per channelR AC · G 51 · B A4

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Every value on this page was computed from “ac51a4” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.