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Recognised as Colour

#1B209E

  • #1B209E
  • Blue
  • Dark
  • Nearest: Dark blue

#1B209E is a blue with RGB values 27, 32, 158 and HSL 238°, 71%, 36%. It is a dark colour, so white text on it reaches 12:1 contrast (AAA for normal text). The nearest named colour is Dark blue.

Colour values

#1B209E#1B209E
HEX#1B209E
RGBrgb(27, 32, 158)
RGB (0–1)0.1059, 0.1255, 0.6196
RGB percentages10.6%, 12.5%, 62%
HSLhsl(237.7, 70.8%, 36.3%)
HSV / HSBhsv(237.7, 82.9%, 62%)
CMYK82.9%, 79.7%, 0%, 38%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,777,822
CSS custom property--colour: #1B209E;

Brightness & contrast

Relative luminance0.03735WCAG 2.x, 0 is black and 1 is white
Perceived brightness60.5 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 12.02:1
Contrast with white12.02:1WCAG normal text: AAA
Contrast with black1.75:1WCAG normal text: Fail
Greyscale equivalent#282828
Inverted#E4DF61

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#003DA2no red cones; affects about 1% of men; ΔE 21 from the original
Deuteranopia#00309Cno green cones; the most common form, about 1% of men; ΔE 13.1 from the original
Tritanopia#00475Fno blue cones; rare, and affects men and women equally; ΔE 71.8 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text12.02:1WCAG large text: AAA
Contrast with black, large text1.75:1WCAG large text: Fail

Named colours

Dark blue · ΔE 10.5Navy · ΔE 10.7Indigo · ΔE 16Rebecca purple · ΔE 22.4Midnight blue · ΔE 22.4Slate blue · ΔE 25.6
Nearest named CSS colourDark blue (#00008B)ΔE 10.5, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#9E991B
Analogous#1B629E, #581B9E
Triadic#9E1B20, #209E1B
Split complementary#9E571B, #629E1B
Tetradic#9E1B62, #9E991B, #1B9E58

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#989BED
Lighter +30%#6C71E6
Lighter +20%#4147DE
Lighter +10%#2229CA
Darker −10%#141772
Darker −20%#0C0E47
Darker −30%#05061B
Darker −40%#000000
More saturated +25%#040BB5
Less saturated −25%#323587

Channel breakdown

R27
G32
B158
Red27 (10.6%)
Green32 (12.5%)
Blue158 (62%)
Hue237.71°
Saturation (HSL)70.81%
Lightness36.27%
Dominant channelBlue
Hex per channelR 1B · G 20 · B 9E

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Every value on this page was computed from “1b209e” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.