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Colour

#640C54

  • #640C54
  • Magenta
  • Dark
  • Nearest: Purple

#640C54 is a magenta with RGB values 100, 12, 84 and HSL 311°, 79%, 22%. It is a dark colour, so white text on it reaches 12.2:1 contrast (AAA for normal text). The nearest named colour is Purple.

Colour values

#640C54#640C54
HEX#640C54
RGBrgb(100, 12, 84)
RGB (0–1)0.3922, 0.0471, 0.3294
RGB percentages39.2%, 4.7%, 32.9%
HSLhsl(310.9, 78.6%, 22%)
HSV / HSBhsv(310.9, 88%, 39.2%)
CMYK0%, 88%, 16%, 60.8%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer6,556,756
CSS custom property--colour: #640C54;

Brightness & contrast

Relative luminance0.03612WCAG 2.x, 0 is black and 1 is white
Perceived brightness62.3 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 12.19:1
Contrast with white12.19:1WCAG normal text: AAA
Contrast with black1.72:1WCAG normal text: Fail
Greyscale equivalent#242424
Inverted#9BF3AB

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#102D56no red cones; affects about 1% of men; ΔE 39.4 from the original
Deuteranopia#303A52no green cones; the most common form, about 1% of men; ΔE 41.6 from the original
Tritanopia#6A1330no blue cones; rare, and affects men and women equally; ΔE 25.9 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text12.19:1WCAG large text: AAA
Contrast with black, large text1.72:1WCAG large text: Fail

Named colours

Purple · ΔE 23.3Dark magenta · ΔE 28.1Rebecca purple · ΔE 29.1Dark slateblue · ΔE 29.7Midnight blue · ΔE 32.7Indigo · ΔE 34.1
Nearest named CSS colourPurple (#800080)ΔE 23.3, a distinctly different colour
Hue familymagenta
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#0C641C
Analogous#480C64, #640C28
Triadic#54640C, #0C5464
Split complementary#28640C, #0C6448
Tetradic#64480C, #0C641C, #0C2864

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#EA52CF
Lighter +30%#E524C2
Lighter +20%#BF17A1
Lighter +10%#92117A
Darker −10%#36072E
Darker −20%#090108
Darker −30%#000000
Darker −40%#000000
More saturated +25%#70005C
Less saturated −25%#561A4B

Channel breakdown

R100
G12
B84
Red100 (39.2%)
Green12 (4.7%)
Blue84 (32.9%)
Hue310.91°
Saturation (HSL)78.57%
Lightness21.96%
Dominant channelRed
Hex per channelR 64 · G 0C · B 54

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Every value on this page was computed from “640c54” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.