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Recognised as Colour

#663CE2

  • #663CE2
  • Violet
  • Dark
  • Nearest: Blue violet

#663CE2 is a violet with RGB values 102, 60, 226 and HSL 255°, 74%, 56%. It is a dark colour, so white text on it reaches 6.3:1 contrast (AA for normal text). The nearest named colour is Blue violet.

Colour values

#663CE2#663CE2
HEX#663CE2
RGBrgb(102, 60, 226)
RGB (0–1)0.4, 0.2353, 0.8863
RGB percentages40%, 23.5%, 88.6%
HSLhsl(255.2, 74.1%, 56.1%)
HSV / HSBhsv(255.2, 73.5%, 88.6%)
CMYK54.9%, 73.5%, 0%, 11.4%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer6,700,258
CSS custom property--colour: #663CE2;

Brightness & contrast

Relative luminance0.11547WCAG 2.x, 0 is black and 1 is white
Perceived brightness105.1 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 6.35:1
Contrast with white6.35:1WCAG normal text: AA
Contrast with black3.31:1WCAG normal text: Fail
Greyscale equivalent#515151
Inverted#99C31D

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0064E7no red cones; affects about 1% of men; ΔE 31.5 from the original
Deuteranopia#005BDFno green cones; the most common form, about 1% of men; ΔE 28.4 from the original
Tritanopia#2E6A8Cno blue cones; rare, and affects men and women equally; ΔE 84.9 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text6.35:1WCAG large text: AAA
Contrast with black, large text3.31:1WCAG large text: AA

Named colours

Blue violet · ΔE 12.4Dark orchid · ΔE 19.3Dark violet · ΔE 19.8Medium blue · ΔE 22.7Medium slateblue · ΔE 23.9Dark blue · ΔE 28.3
Nearest named CSS colourBlue violet (#8A2BE2)ΔE 12.4, a distinctly different colour
Hue familyviolet
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#B8E23C
Analogous#3C65E2, #B93CE2
Triadic#E2663C, #3CE266
Split complementary#E2B93C, #65E23C
Tetradic#E23C65, #B8E23C, #3CE2B9

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#F1EEFC
Lighter +30%#CFC1F6
Lighter +20%#AC95EF
Lighter +10%#8968E9
Darker −10%#4A1ECD
Darker −20%#3A18A0
Darker −30%#2A1174
Darker −40%#1A0B47
More saturated +25%#5820FE
Less saturated −25%#7458C6

Channel breakdown

R102
G60
B226
Red102 (40%)
Green60 (23.5%)
Blue226 (88.6%)
Hue255.18°
Saturation (HSL)74.11%
Lightness56.08%
Dominant channelBlue
Hex per channelR 66 · G 3C · B E2

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Every value on this page was computed from “663ce2” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.