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Recognised as Colour

#33156D

  • #33156D
  • Violet
  • Dark
  • Nearest: Midnight blue

#33156D is a violet with RGB values 51, 21, 109 and HSL 260°, 68%, 25%. It is a dark colour, so white text on it reaches 14.3:1 contrast (AAA for normal text). The nearest named colour is Midnight blue.

Colour values

#33156D#33156D
HEX#33156D
RGBrgb(51, 21, 109)
RGB (0–1)0.2, 0.0824, 0.4275
RGB percentages20%, 8.2%, 42.7%
HSLhsl(260.5, 67.7%, 25.5%)
HSV / HSBhsv(260.5, 80.7%, 42.7%)
CMYK53.2%, 80.7%, 0%, 57.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,347,821
CSS custom property--colour: #33156D;

Brightness & contrast

Relative luminance0.02344WCAG 2.x, 0 is black and 1 is white
Perceived brightness48.9 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 14.3:1
Contrast with white14.3:1WCAG normal text: AAA
Contrast with black1.47:1WCAG normal text: Fail
Greyscale equivalent#222222
Inverted#CCEA92

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#002C6Fno red cones; affects about 1% of men; ΔE 20.7 from the original
Deuteranopia#00286Bno green cones; the most common form, about 1% of men; ΔE 19.4 from the original
Tritanopia#1F2E40no blue cones; rare, and affects men and women equally; ΔE 48.7 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text14.3:1WCAG large text: AAA
Contrast with black, large text1.47:1WCAG large text: Fail

Named colours

Midnight blue · ΔE 6.4Rebecca purple · ΔE 17.1Dark slateblue · ΔE 17.4Indigo · ΔE 17.6Navy · ΔE 22.8Purple · ΔE 27.3
Nearest named CSS colourMidnight blue (#191970)ΔE 6.42, clearly different but related
Hue familyviolet
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#4F6D15
Analogous#15236D, #5F156D
Triadic#6D3315, #156D33
Split complementary#6D5F15, #236D15
Tetradic#6D1523, #4F6D15, #156D5F

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#946BE3
Lighter +30%#7541DA
Lighter +20%#5B25C3
Lighter +10%#471D98
Darker −10%#1F0D42
Darker −20%#0B0517
Darker −30%#000000
Darker −40%#000000
More saturated +25%#2E057D
Less saturated −25%#38255D

Channel breakdown

R51
G21
B109
Red51 (20%)
Green21 (8.2%)
Blue109 (42.7%)
Hue260.45°
Saturation (HSL)67.69%
Lightness25.49%
Dominant channelBlue
Hex per channelR 33 · G 15 · B 6D

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Every value on this page was computed from “33156d” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.