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Recognised as Colour

#1836AA

  • #1836AA
  • Blue
  • Dark
  • Nearest: Slate blue

#1836AA is a blue with RGB values 24, 54, 170 and HSL 228°, 75%, 38%. It is a dark colour, so white text on it reaches 9.8:1 contrast (AAA for normal text). The nearest named colour is Slate blue.

Colour values

#1836AA#1836AA
HEX#1836AA
RGBrgb(24, 54, 170)
RGB (0–1)0.0941, 0.2118, 0.6667
RGB percentages9.4%, 21.2%, 66.7%
HSLhsl(227.7, 75.3%, 38%)
HSV / HSBhsv(227.7, 85.9%, 66.7%)
CMYK85.9%, 68.2%, 0%, 33.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,586,858
CSS custom property--colour: #1836AA;

Brightness & contrast

Relative luminance0.05735WCAG 2.x, 0 is black and 1 is white
Perceived brightness72 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 9.78:1
Contrast with white9.78:1WCAG normal text: AAA
Contrast with black2.15:1WCAG normal text: Fail
Greyscale equivalent#383838
Inverted#E7C955

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#004BAEno red cones; affects about 1% of men; ΔE 16.1 from the original
Deuteranopia#003DA8no green cones; the most common form, about 1% of men; ΔE 7.3 from the original
Tritanopia#00566Bno blue cones; rare, and affects men and women equally; ΔE 67.2 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text9.78:1WCAG large text: AAA
Contrast with black, large text2.15:1WCAG large text: Fail

Named colours

Slate blue · ΔE 18Rebecca purple · ΔE 19.6Midnight blue · ΔE 19.9Navy · ΔE 20.3Royal blue · ΔE 20.9Dark blue · ΔE 21.5
Nearest named CSS colourSlate blue (#6A5ACD)ΔE 17.97, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#AA8C18
Analogous#187FAA, #4318AA
Triadic#AA1836, #36AA18
Split complementary#AA4318, #7FAA18
Tetradic#AA187F, #AA8C18, #18AA43

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#9DAEF1
Lighter +30%#7089EB
Lighter +20%#4365E5
Lighter +10%#1E44D7
Darker −10%#12287D
Darker −20%#0B1A51
Darker −30%#050B24
Darker −40%#000000
More saturated +25%#0028C2
Less saturated −25%#304492

Channel breakdown

R24
G54
B170
Red24 (9.4%)
Green54 (21.2%)
Blue170 (66.7%)
Hue227.67°
Saturation (HSL)75.26%
Lightness38.04%
Dominant channelBlue
Hex per channelR 18 · G 36 · B AA

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Every value on this page was computed from “1836aa” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.