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Recognised as Colour

#013369

  • #013369
  • Blue
  • Dark
  • Nearest: Dark slateblue

#013369 is a blue with RGB values 1, 51, 105 and HSL 211°, 98%, 21%. It is a dark colour, so white text on it reaches 12.5:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#013369#013369
HEX#013369
RGBrgb(1, 51, 105)
RGB (0–1)0.0039, 0.2, 0.4118
RGB percentages0.4%, 20%, 41.2%
HSLhsl(211.2, 98.1%, 20.8%)
HSV / HSBhsv(211.2, 99%, 41.2%)
CMYK99%, 51.4%, 0%, 58.8%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer78,697
CSS custom property--colour: #013369;

Brightness & contrast

Relative luminance0.03394WCAG 2.x, 0 is black and 1 is white
Perceived brightness52.8 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 12.51:1
Contrast with white12.51:1WCAG normal text: AAA
Contrast with black1.68:1WCAG normal text: Fail
Greyscale equivalent#2C2C2C
Inverted#FECC96

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#12386Bno red cones; affects about 1% of men; ΔE 3.3 from the original
Deuteranopia#003068no green cones; the most common form, about 1% of men; ΔE 2.2 from the original
Tritanopia#004049no blue cones; rare, and affects men and women equally; ΔE 33.9 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text12.51:1WCAG large text: AAA
Contrast with black, large text1.68:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 21Midnight blue · ΔE 27.8Steel blue · ΔE 33.5Rebecca purple · ΔE 38.2Dark slate grey · ΔE 39Slate grey · ΔE 41.5
Nearest named CSS colourDark slateblue (#483D8B)ΔE 21.03, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#693701
Analogous#016769, #030169
Triadic#690133, #336901
Split complementary#690301, #676901
Tetradic#690167, #693701, #016903

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#3997FD
Lighter +30%#067DFD
Lighter +20%#0264CE
Lighter +10%#014C9C
Darker −10%#011A36
Darker −20%#000204
Darker −30%#000000
Darker −40%#000000
More saturated +25%#00336A
Less saturated −25%#0E345C

Channel breakdown

R1
G51
B105
Red1 (0.4%)
Green51 (20%)
Blue105 (41.2%)
Hue211.15°
Saturation (HSL)98.11%
Lightness20.78%
Dominant channelBlue
Hex per channelR 01 · G 33 · B 69

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Every value on this page was computed from “hex 013369” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.