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Recognised as Colour

#33286B

  • #33286B
  • Blue
  • Dark
  • Nearest: Dark slateblue

#33286B is a blue with RGB values 51, 40, 107 and HSL 250°, 46%, 29%. It is a dark colour, so white text on it reaches 12.7:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#33286B#33286B
HEX#33286B
RGBrgb(51, 40, 107)
RGB (0–1)0.2, 0.1569, 0.4196
RGB percentages20%, 15.7%, 42%
HSLhsl(249.9, 45.6%, 28.8%)
HSV / HSBhsv(249.9, 62.6%, 42%)
CMYK52.3%, 62.6%, 0%, 58%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,352,683
CSS custom property--colour: #33286B;

Brightness & contrast

Relative luminance0.03283WCAG 2.x, 0 is black and 1 is white
Perceived brightness55 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 12.68:1
Contrast with white12.68:1WCAG normal text: AAA
Contrast with black1.66:1WCAG normal text: Fail
Greyscale equivalent#2F2F2F
Inverted#CCD794

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#00356Dno red cones; affects about 1% of men; ΔE 16 from the original
Deuteranopia#00316Ano green cones; the most common form, about 1% of men; ΔE 14.3 from the original
Tritanopia#1F3745no blue cones; rare, and affects men and women equally; ΔE 39.1 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text12.68:1WCAG large text: AAA
Contrast with black, large text1.66:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 10.8Midnight blue · ΔE 15Rebecca purple · ΔE 23.9Indigo · ΔE 31.5Slate blue · ΔE 33.6Purple · ΔE 35.6
Nearest named CSS colourDark slateblue (#483D8B)ΔE 10.8, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#606B28
Analogous#283E6B, #55286B
Triadic#6B3328, #286B33
Split complementary#6B5528, #3E6B28
Tetradic#6B283E, #606B28, #286B55

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#978BD4
Lighter +30%#7666C6
Lighter +20%#5644B5
Lighter +10%#453690
Darker −10%#211A46
Darker −20%#100C21
Darker −30%#000000
Darker −40%#000000
More saturated +25%#27167D
Less saturated −25%#3F3A59

Channel breakdown

R51
G40
B107
Red51 (20%)
Green40 (15.7%)
Blue107 (42%)
Hue249.85°
Saturation (HSL)45.58%
Lightness28.82%
Dominant channelBlue
Hex per channelR 33 · G 28 · B 6B

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Every value on this page was computed from “33286b” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.