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Recognised as Colour

#331C4F

  • #331C4F
  • Violet
  • Dark
  • Nearest: Dark slateblue

#331C4F is a violet with RGB values 51, 28, 79 and HSL 267°, 48%, 21%. It is a dark colour, so white text on it reaches 14.8:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#331C4F#331C4F
HEX#331C4F
RGBrgb(51, 28, 79)
RGB (0–1)0.2, 0.1098, 0.3098
RGB percentages20%, 11%, 31%
HSLhsl(267.1, 47.7%, 21%)
HSV / HSBhsv(267.1, 64.6%, 31%)
CMYK35.4%, 64.6%, 0%, 69%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,349,583
CSS custom property--colour: #331C4F;

Brightness & contrast

Relative luminance0.02099WCAG 2.x, 0 is black and 1 is white
Perceived brightness44.2 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 14.79:1
Contrast with white14.79:1WCAG normal text: AAA
Contrast with black1.42:1WCAG normal text: Fail
Greyscale equivalent#252525
Inverted#CCE3B0

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#042751no red cones; affects about 1% of men; ΔE 17 from the original
Deuteranopia#0E284Eno green cones; the most common form, about 1% of men; ΔE 17.8 from the original
Tritanopia#2D2632no blue cones; rare, and affects men and women equally; ΔE 26.9 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text14.79:1WCAG large text: AAA
Contrast with black, large text1.42:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 21.1Midnight blue · ΔE 23.8Rebecca purple · ΔE 32.6Indigo · ΔE 38.7Purple · ΔE 39.2Black · ΔE 39.3
Nearest named CSS colourDark slateblue (#483D8B)ΔE 21.11, a distinctly different colour
Hue familyviolet
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#384F1C
Analogous#1C1F4F, #4C1C4F
Triadic#4F331C, #1C4F33
Split complementary#4F4D1C, #1E4F1C
Tetradic#4F1C1F, #384F1C, #1C4F4C

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#976CCB
Lighter +30%#7C46BE
Lighter +20%#64379A
Lighter +10%#4B2975
Darker −10%#1B0F29
Darker −20%#020104
Darker −30%#000000
Darker −40%#000000
More saturated +25%#320F5C
Less saturated −25%#342942

Channel breakdown

R51
G28
B79
Red51 (20%)
Green28 (11%)
Blue79 (31%)
Hue267.06°
Saturation (HSL)47.66%
Lightness20.98%
Dominant channelBlue
Hex per channelR 33 · G 1C · B 4F

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Every value on this page was computed from “331c4f” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.