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Recognised as Colour

#18325D

  • #18325D
  • Blue
  • Dark
  • Nearest: Dark slateblue

#18325D is a blue with RGB values 24, 50, 93 and HSL 217°, 59%, 23%. It is a dark colour, so white text on it reaches 12.7:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#18325D#18325D
HEX#18325D
RGBrgb(24, 50, 93)
RGB (0–1)0.0941, 0.1961, 0.3647
RGB percentages9.4%, 19.6%, 36.5%
HSLhsl(217.4, 59%, 22.9%)
HSV / HSBhsv(217.4, 74.2%, 36.5%)
CMYK74.2%, 46.2%, 0%, 63.5%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,585,757
CSS custom property--colour: #18325D;

Brightness & contrast

Relative luminance0.03266WCAG 2.x, 0 is black and 1 is white
Perceived brightness51.2 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 12.7:1
Contrast with white12.7:1WCAG normal text: AAA
Contrast with black1.65:1WCAG normal text: Fail
Greyscale equivalent#303030
Inverted#E7CDA2

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#1D365Fno red cones; affects about 1% of men; ΔE 2.4 from the original
Deuteranopia#12305Cno green cones; the most common form, about 1% of men; ΔE 1.3 from the original
Tritanopia#003C43no blue cones; rare, and affects men and women equally; ΔE 28.5 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text12.7:1WCAG large text: AAA
Contrast with black, large text1.65:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 25.7Dark slate grey · ΔE 32.5Midnight blue · ΔE 33.2Steel blue · ΔE 33.3Black · ΔE 36.1Dim grey · ΔE 37.5
Nearest named CSS colourDark slateblue (#483D8B)ΔE 25.71, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#5D4318
Analogous#18545D, #21185D
Triadic#5D1832, #325D18
Split complementary#5D2118, #545D18
Tetradic#5D1854, #5D4318, #185D21

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#6993D8
Lighter +30%#4076CE
Lighter +20%#2D5EAE
Lighter +10%#224886
Darker −10%#0E1C34
Darker −20%#03060C
Darker −30%#000000
Darker −40%#000000
More saturated +25%#092E6C
Less saturated −25%#27364E

Channel breakdown

R24
G50
B93
Red24 (9.4%)
Green50 (19.6%)
Blue93 (36.5%)
Hue217.39°
Saturation (HSL)58.97%
Lightness22.94%
Dominant channelBlue
Hex per channelR 18 · G 32 · B 5D

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Every value on this page was computed from “18325d” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.