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Recognised as Colour

#663F5A

  • #663F5A
  • Magenta
  • Dark
  • Nearest: Dim grey

#663F5A is a magenta with RGB values 102, 63, 90 and HSL 318°, 24%, 32%. It is a dark colour, so white text on it reaches 8.7:1 contrast (AAA for normal text). The nearest named colour is Dim grey.

Colour values

#663F5A#663F5A
HEX#663F5A
RGBrgb(102, 63, 90)
RGB (0–1)0.4, 0.2471, 0.3529
RGB percentages40%, 24.7%, 35.3%
HSLhsl(318.5, 23.6%, 32.4%)
HSV / HSBhsv(318.5, 38.2%, 40%)
CMYK0%, 38.2%, 11.8%, 60%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer6,700,890
CSS custom property--colour: #663F5A;

Brightness & contrast

Relative luminance0.07118WCAG 2.x, 0 is black and 1 is white
Perceived brightness79.8 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 8.66:1
Contrast with white8.66:1WCAG normal text: AAA
Contrast with black2.42:1WCAG normal text: Fail
Greyscale equivalent#494949
Inverted#99C0A5

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#40485Bno red cones; affects about 1% of men; ΔE 20.1 from the original
Deuteranopia#4A4E59no green cones; the most common form, about 1% of men; ΔE 20.7 from the original
Tritanopia#6A4049no blue cones; rare, and affects men and women equally; ΔE 11.5 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text8.66:1WCAG large text: AAA
Contrast with black, large text2.42:1WCAG large text: Fail

Named colours

Dim grey · ΔE 26.4Slate grey · ΔE 31.5Gray · ΔE 31.7Dark slateblue · ΔE 33.4Dark slate grey · ΔE 33.7Light slate grey · ΔE 33.7
Nearest named CSS colourDim grey (#696969)ΔE 26.41, a distinctly different colour
Hue familymagenta
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#3F664B
Analogous#5E3F66, #663F46
Triadic#5A663F, #3F5A66
Split complementary#46663F, #3F665E
Tetradic#665E3F, #3F664B, #3F4666

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#C9A8BF
Lighter +30%#B688A8
Lighter +20%#A26991
Lighter +10%#865276
Darker −10%#462C3E
Darker −20%#271822
Darker −30%#070507
Darker −40%#000000
More saturated +25%#7B2A62
Less saturated −25%#525252

Channel breakdown

R102
G63
B90
Red102 (40%)
Green63 (24.7%)
Blue90 (35.3%)
Hue318.46°
Saturation (HSL)23.64%
Lightness32.35%
Dominant channelRed
Hex per channelR 66 · G 3F · B 5A

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Every value on this page was computed from “663f5a” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.