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Colour

#1B46AA

  • #1B46AA
  • Blue
  • Dark
  • Nearest: Dark slateblue

#1B46AA is a blue with RGB values 27, 70, 170 and HSL 222°, 73%, 39%. It is a dark colour, so white text on it reaches 8.4:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#1B46AA#1B46AA
HEX#1B46AA
RGBrgb(27, 70, 170)
RGB (0–1)0.1059, 0.2745, 0.6667
RGB percentages10.6%, 27.5%, 66.7%
HSLhsl(222, 72.6%, 38.6%)
HSV / HSBhsv(222, 84.1%, 66.7%)
CMYK84.1%, 58.8%, 0%, 33.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,787,562
CSS custom property--colour: #1B46AA;

Brightness & contrast

Relative luminance0.07516WCAG 2.x, 0 is black and 1 is white
Perceived brightness79.9 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 8.39:1
Contrast with white8.39:1WCAG normal text: AAA
Contrast with black2.5:1WCAG normal text: Fail
Greyscale equivalent#444444
Inverted#E4B955

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0054ADno red cones; affects about 1% of men; ΔE 11.2 from the original
Deuteranopia#0047A8no green cones; the most common form, about 1% of men; ΔE 3 from the original
Tritanopia#005F71no blue cones; rare, and affects men and women equally; ΔE 57.9 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text8.39:1WCAG large text: AAA
Contrast with black, large text2.5:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 15.7Royal blue · ΔE 16.9Slate blue · ΔE 17.1Midnight blue · ΔE 20.3Rebecca purple · ΔE 21.4Medium purple · ΔE 26.4
Nearest named CSS colourDark slateblue (#483D8B)ΔE 15.75, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#AA7F1B
Analogous#1B8EAA, #371BAA
Triadic#AA1B46, #46AA1B
Split complementary#AA371B, #8EAA1B
Tetradic#AA1B8E, #AA7F1B, #1BAA37

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#A1B9F0
Lighter +30%#7598E9
Lighter +20%#4977E2
Lighter +10%#2258D6
Darker −10%#14347E
Darker −20%#0D2252
Darker −30%#061026
Darker −40%#000000
More saturated +25%#023CC3
Less saturated −25%#345091

Channel breakdown

R27
G70
B170
Red27 (10.6%)
Green70 (27.5%)
Blue170 (66.7%)
Hue221.96°
Saturation (HSL)72.59%
Lightness38.63%
Dominant channelBlue
Hex per channelR 1B · G 46 · B AA

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Every value on this page was computed from “1b46aa” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.