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Recognised as Colour

#1359B1

  • #1359B1
  • Blue
  • Dark
  • Nearest: Dark slateblue

#1359B1 is a blue with RGB values 19, 89, 177 and HSL 213°, 81%, 38%. It is a dark colour, so white text on it reaches 6.8:1 contrast (AA for normal text). The nearest named colour is Dark slateblue.

Colour values

#1359B1#1359B1
HEX#1359B1
RGBrgb(19, 89, 177)
RGB (0–1)0.0745, 0.349, 0.6941
RGB percentages7.5%, 34.9%, 69.4%
HSLhsl(213.4, 80.6%, 38.4%)
HSV / HSBhsv(213.4, 89.3%, 69.4%)
CMYK89.3%, 49.7%, 0%, 30.6%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,268,145
CSS custom property--colour: #1359B1;

Brightness & contrast

Relative luminance0.10458WCAG 2.x, 0 is black and 1 is white
Perceived brightness91.3 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 6.79:1
Contrast with white6.79:1WCAG normal text: AA
Contrast with black3.09:1WCAG normal text: Fail
Greyscale equivalent#505050
Inverted#ECA64E

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#2262B4no red cones; affects about 1% of men; ΔE 5.7 from the original
Deuteranopia#0055AFno green cones; the most common form, about 1% of men; ΔE 2.3 from the original
Tritanopia#006E7Cno blue cones; rare, and affects men and women equally; ΔE 51 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text6.79:1WCAG large text: AAA
Contrast with black, large text3.09:1WCAG large text: AA

Named colours

Dark slateblue · ΔE 18Royal blue · ΔE 20.1Dodgerblue · ΔE 23.7Cornflower blue · ΔE 23.9Slate blue · ΔE 23.9Medium purple · ΔE 28.4
Nearest named CSS colourDark slateblue (#483D8B)ΔE 17.95, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#B16B13
Analogous#13A8B1, #1C13B1
Triadic#B11359, #59B113
Split complementary#B11C13, #A8B113
Tetradic#B113A8, #B16B13, #13B11C

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#9CC3F4
Lighter +30%#6EA7EF
Lighter +20%#408BEA
Lighter +10%#1870DF
Darker −10%#0E4283
Darker −20%#092B55
Darker −30%#041427
Darker −40%#000000
More saturated +25%#0057C4
Less saturated −25%#2B5C99

Channel breakdown

R19
G89
B177
Red19 (7.5%)
Green89 (34.9%)
Blue177 (69.4%)
Hue213.42°
Saturation (HSL)80.61%
Lightness38.43%
Dominant channelBlue
Hex per channelR 13 · G 59 · B B1

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Every value on this page was computed from “1359b1” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.