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Recognised as Colour

#33037E

  • #33037E
  • Violet
  • Dark
  • Nearest: Indigo

#33037E is a violet with RGB values 51, 3, 126 and HSL 263°, 95%, 25%. It is a dark colour, so white text on it reaches 14.4:1 contrast (AAA for normal text). The nearest named colour is Indigo.

Colour values

#33037E#33037E
HEX#33037E
RGBrgb(51, 3, 126)
RGB (0–1)0.2, 0.0118, 0.4941
RGB percentages20%, 1.2%, 49.4%
HSLhsl(263.4, 95.3%, 25.3%)
HSV / HSBhsv(263.4, 97.6%, 49.4%)
CMYK59.5%, 97.6%, 0%, 50.6%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,343,230
CSS custom property--colour: #33037E;

Brightness & contrast

Relative luminance0.02275WCAG 2.x, 0 is black and 1 is white
Perceived brightness50.9 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 14.43:1
Contrast with white14.43:1WCAG normal text: AAA
Contrast with black1.46:1WCAG normal text: Fail
Greyscale equivalent#161616
Inverted#CCFC81

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#002C81no red cones; affects about 1% of men; ΔE 24.9 from the original
Deuteranopia#00267Cno green cones; the most common form, about 1% of men; ΔE 22.5 from the original
Tritanopia#0D3048no blue cones; rare, and affects men and women equally; ΔE 63.5 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text14.43:1WCAG large text: AAA
Contrast with black, large text1.46:1WCAG large text: Fail

Named colours

Indigo · ΔE 6.4Navy · ΔE 8.8Dark blue · ΔE 12.3Midnight blue · ΔE 17.6Rebecca purple · ΔE 19.3Purple · ΔE 26.6
Nearest named CSS colourIndigo (#4B0082)ΔE 6.43, clearly different but related
Hue familyviolet
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#4E7E03
Analogous#03107E, #71037E
Triadic#7E3303, #037E33
Split complementary#7E7103, #107E03
Tetradic#7E0310, #4E7E03, #037E71

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#9452FB
Lighter +30%#7520FA
Lighter +20%#5B05E2
Lighter +10%#4704B0
Darker −10%#1F024C
Darker −20%#0B011A
Darker −30%#000000
Darker −40%#000000
More saturated +25%#320081
Less saturated −25%#37136E

Channel breakdown

R51
G3
B126
Red51 (20%)
Green3 (1.2%)
Blue126 (49.4%)
Hue263.41°
Saturation (HSL)95.35%
Lightness25.29%
Dominant channelBlue
Hex per channelR 33 · G 03 · B 7E

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Every value on this page was computed from “33037e” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.