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Recognised as Colour

#3D3369

  • #3D3369
  • Blue
  • Dark
  • Nearest: Dark slateblue

#3D3369 is a blue with RGB values 61, 51, 105 and HSL 251°, 35%, 31%. It is a dark colour, so white text on it reaches 11.2:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#3D3369#3D3369
HEX#3D3369
RGBrgb(61, 51, 105)
RGB (0–1)0.2392, 0.2, 0.4118
RGB percentages23.9%, 20%, 41.2%
HSLhsl(251.1, 34.6%, 30.6%)
HSV / HSBhsv(251.1, 51.4%, 41.2%)
CMYK41.9%, 51.4%, 0%, 58.8%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer4,010,857
CSS custom property--colour: #3D3369;

Brightness & contrast

Relative luminance0.0438WCAG 2.x, 0 is black and 1 is white
Perceived brightness62.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 11.19:1
Contrast with white11.19:1WCAG normal text: AAA
Contrast with black1.88:1WCAG normal text: Fail
Greyscale equivalent#393939
Inverted#C2CC96

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#1E3C6Bno red cones; affects about 1% of men; ΔE 12.9 from the original
Deuteranopia#1F3A68no green cones; the most common form, about 1% of men; ΔE 12.5 from the original
Tritanopia#313E49no blue cones; rare, and affects men and women equally; ΔE 30.4 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text11.19:1WCAG large text: AAA
Contrast with black, large text1.88:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 15Midnight blue · ΔE 24.9Rebecca purple · ΔE 30.4Steel blue · ΔE 36Slate blue · ΔE 38.3Slate grey · ΔE 40.2
Nearest named CSS colourDark slateblue (#483D8B)ΔE 15.03, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#5F6933
Analogous#334469, #583369
Triadic#693D33, #33693D
Split complementary#695833, #446933
Tetradic#693344, #5F6933, #336958

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#A49ACE
Lighter +30%#8578BD
Lighter +20%#6655AD
Lighter +10%#51448B
Darker −10%#292247
Darker −20%#151224
Darker −30%#010102
Darker −40%#000000
More saturated +25%#31207D
Less saturated −25%#494756

Channel breakdown

R61
G51
B105
Red61 (23.9%)
Green51 (20%)
Blue105 (41.2%)
Hue251.11°
Saturation (HSL)34.62%
Lightness30.59%
Dominant channelBlue
Hex per channelR 3D · G 33 · B 69

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Every value on this page was computed from “3d3369” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.