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Colour

#3C1681

  • #3C1681
  • Violet
  • Dark
  • Nearest: Indigo

#3C1681 is a violet with RGB values 60, 22, 129 and HSL 261°, 71%, 30%. It is a dark colour, so white text on it reaches 12.9:1 contrast (AAA for normal text). The nearest named colour is Indigo.

Colour values

#3C1681#3C1681
HEX#3C1681
RGBrgb(60, 22, 129)
RGB (0–1)0.2353, 0.0863, 0.5059
RGB percentages23.5%, 8.6%, 50.6%
HSLhsl(261.3, 70.9%, 29.6%)
HSV / HSBhsv(261.3, 82.9%, 50.6%)
CMYK53.5%, 82.9%, 0%, 49.4%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,937,921
CSS custom property--colour: #3C1681;

Brightness & contrast

Relative luminance0.03119WCAG 2.x, 0 is black and 1 is white
Perceived brightness57.1 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 12.93:1
Contrast with white12.93:1WCAG normal text: AAA
Contrast with black1.62:1WCAG normal text: Fail
Greyscale equivalent#262626
Inverted#C3E97E

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#003384no red cones; affects about 1% of men; ΔE 23.3 from the original
Deuteranopia#002F7Fno green cones; the most common form, about 1% of men; ΔE 22.5 from the original
Tritanopia#23364Cno blue cones; rare, and affects men and women equally; ΔE 56.9 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text12.93:1WCAG large text: AAA
Contrast with black, large text1.62:1WCAG large text: Fail

Named colours

Indigo · ΔE 8.8Midnight blue · ΔE 12.5Rebecca purple · ΔE 13.6Navy · ΔE 14.9Dark blue · ΔE 18.6Dark slateblue · ΔE 22.4
Nearest named CSS colourIndigo (#4B0082)ΔE 8.79, clearly different but related
Hue familyviolet
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#5B8116
Analogous#162681, #711681
Triadic#813C16, #16813C
Split complementary#817116, #268116
Tetradic#811626, #5B8116, #168171

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#A27BE8
Lighter +30%#834FE1
Lighter +20%#6525D8
Lighter +10%#501DAD
Darker −10%#280F55
Darker −20%#13072A
Darker −30%#000000
Darker −40%#000000
More saturated +25%#370394
Less saturated −25%#41296E

Channel breakdown

R60
G22
B129
Red60 (23.5%)
Green22 (8.6%)
Blue129 (50.6%)
Hue261.31°
Saturation (HSL)70.86%
Lightness29.61%
Dominant channelBlue
Hex per channelR 3C · G 16 · B 81

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Every value on this page was computed from “3c1681” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.