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Recognised as Colour

#66375B

  • #66375B
  • Magenta
  • Dark
  • Nearest: Dark slateblue

#66375B is a magenta with RGB values 102, 55, 91 and HSL 314°, 30%, 31%. It is a dark colour, so white text on it reaches 9.3:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#66375B#66375B
HEX#66375B
RGBrgb(102, 55, 91)
RGB (0–1)0.4, 0.2157, 0.3569
RGB percentages40%, 21.6%, 35.7%
HSLhsl(314, 29.9%, 30.8%)
HSV / HSBhsv(314, 46.1%, 40%)
CMYK0%, 46.1%, 10.8%, 60%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer6,698,843
CSS custom property--colour: #66375B;

Brightness & contrast

Relative luminance0.06312WCAG 2.x, 0 is black and 1 is white
Perceived brightness76.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 9.28:1
Contrast with white9.28:1WCAG normal text: AAA
Contrast with black2.26:1WCAG normal text: Fail
Greyscale equivalent#444444
Inverted#99C8A4

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#38435Cno red cones; affects about 1% of men; ΔE 24.3 from the original
Deuteranopia#444A5Ano green cones; the most common form, about 1% of men; ΔE 25.1 from the original
Tritanopia#6A3945no blue cones; rare, and affects men and women equally; ΔE 15.1 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text9.28:1WCAG large text: AAA
Contrast with black, large text2.26:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 29.6Dim grey · ΔE 32.6Slate grey · ΔE 36.6Gray · ΔE 37.5Pale violetred · ΔE 38.1Rebecca purple · ΔE 38.4
Nearest named CSS colourDark slateblue (#483D8B)ΔE 29.57, a distinctly different colour
Hue familymagenta
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#376642
Analogous#593766, #663744
Triadic#5B6637, #375B66
Split complementary#446637, #376659
Tetradic#665A37, #376642, #374466

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#CB9EC0
Lighter +30%#B97DAB
Lighter +20%#A75C95
Lighter +10%#874979
Darker −10%#45253D
Darker −20%#241320
Darker −30%#030102
Darker −40%#000000
More saturated +25%#7A2365
Less saturated −25%#524B51

Channel breakdown

R102
G55
B91
Red102 (40%)
Green55 (21.6%)
Blue91 (35.7%)
Hue314.04°
Saturation (HSL)29.94%
Lightness30.78%
Dominant channelRed
Hex per channelR 66 · G 37 · B 5B

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Every value on this page was computed from “66375b” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.