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Recognised as Colour

#16418B

  • #16418B
  • Blue
  • Dark
  • Nearest: Dark slateblue

#16418B is a blue with RGB values 22, 65, 139 and HSL 218°, 73%, 32%. It is a dark colour, so white text on it reaches 9.7:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#16418B#16418B
HEX#16418B
RGBrgb(22, 65, 139)
RGB (0–1)0.0863, 0.2549, 0.5451
RGB percentages8.6%, 25.5%, 54.5%
HSLhsl(217.9, 72.7%, 31.6%)
HSV / HSBhsv(217.9, 84.2%, 54.5%)
CMYK84.2%, 53.2%, 0%, 45.5%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,458,571
CSS custom property--colour: #16418B;

Brightness & contrast

Relative luminance0.05815WCAG 2.x, 0 is black and 1 is white
Perceived brightness69.5 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 9.71:1
Contrast with white9.71:1WCAG normal text: AAA
Contrast with black2.16:1WCAG normal text: Fail
Greyscale equivalent#3D3D3D
Inverted#E9BE74

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0D4A8Eno red cones; affects about 1% of men; ΔE 6.8 from the original
Deuteranopia#003F8Ano green cones; the most common form, about 1% of men; ΔE 1.7 from the original
Tritanopia#00535Fno blue cones; rare, and affects men and women equally; ΔE 45.1 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text9.71:1WCAG large text: AAA
Contrast with black, large text2.16:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 12Midnight blue · ΔE 21.9Rebecca purple · ΔE 28.5Slate blue · ΔE 29.7Royal blue · ΔE 29.8Steel blue · ΔE 32.8
Nearest named CSS colourDark slateblue (#483D8B)ΔE 11.97, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#8B6016
Analogous#167B8B, #26168B
Triadic#8B1641, #418B16
Split complementary#8B2616, #7B8B16
Tetradic#8B167B, #8B6016, #168B26

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#82A9EB
Lighter +30%#568AE4
Lighter +20%#2A6CDD
Lighter +10%#1D56B7
Darker −10%#0F2C5F
Darker −20%#081833
Darker −30%#010307
Darker −40%#000000
More saturated +25%#023C9F
Less saturated −25%#2A4677

Channel breakdown

R22
G65
B139
Red22 (8.6%)
Green65 (25.5%)
Blue139 (54.5%)
Hue217.95°
Saturation (HSL)72.67%
Lightness31.57%
Dominant channelBlue
Hex per channelR 16 · G 41 · B 8B

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Every value on this page was computed from “16418b” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.