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Recognised as Colour

#013791

  • #013791
  • Blue
  • Dark
  • Nearest: Dark slateblue

#013791 is a blue with RGB values 1, 55, 145 and HSL 218°, 99%, 29%. It is a dark colour, so white text on it reaches 10.7:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#013791#013791
HEX#013791
RGBrgb(1, 55, 145)
RGB (0–1)0.0039, 0.2157, 0.5686
RGB percentages0.4%, 21.6%, 56.9%
HSLhsl(217.5, 98.6%, 28.6%)
HSV / HSBhsv(217.5, 99.3%, 56.9%)
CMYK99.3%, 62.1%, 0%, 43.1%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer79,761
CSS custom property--colour: #013791;

Brightness & contrast

Relative luminance0.04783WCAG 2.x, 0 is black and 1 is white
Perceived brightness64.6 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 10.73:1
Contrast with white10.73:1WCAG normal text: AAA
Contrast with black1.96:1WCAG normal text: Fail
Greyscale equivalent#323232
Inverted#FEC86E

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#004494no red cones; affects about 1% of men; ΔE 10 from the original
Deuteranopia#00388Fno green cones; the most common form, about 1% of men; ΔE 2.1 from the original
Tritanopia#004F5Eno blue cones; rare, and affects men and women equally; ΔE 54.4 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text10.73:1WCAG large text: AAA
Contrast with black, large text1.96:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 12.9Midnight blue · ΔE 14.1Rebecca purple · ΔE 22.1Slate blue · ΔE 23.7Royal blue · ΔE 24.9Indigo · ΔE 29.4
Nearest named CSS colourDark slateblue (#483D8B)ΔE 12.87, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#915B01
Analogous#017F91, #130191
Triadic#910137, #379101
Split complementary#911301, #7F9101
Tetradic#91017F, #915B01, #019113

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#609BFE
Lighter +30%#2D7BFE
Lighter +20%#025DF6
Lighter +10%#014AC4
Darker −10%#01245E
Darker −20%#00112C
Darker −30%#000000
Darker −40%#000000
More saturated +25%#003792
Less saturated −25%#133C7F

Channel breakdown

R1
G55
B145
Red1 (0.4%)
Green55 (21.6%)
Blue145 (56.9%)
Hue217.5°
Saturation (HSL)98.63%
Lightness28.63%
Dominant channelBlue
Hex per channelR 01 · G 37 · B 91

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Every value on this page was computed from “hex 013791” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.