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Recognised as Colour

#343B66

  • #343B66
  • Blue
  • Dark
  • Nearest: Dark slateblue

#343B66 is a blue with RGB values 52, 59, 102 and HSL 232°, 32%, 30%. It is a dark colour, so white text on it reaches 10.7:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#343B66#343B66
HEX#343B66
RGBrgb(52, 59, 102)
RGB (0–1)0.2039, 0.2314, 0.4
RGB percentages20.4%, 23.1%, 40%
HSLhsl(231.6, 32.5%, 30.2%)
HSV / HSBhsv(231.6, 49%, 40%)
CMYK49%, 42.2%, 0%, 60%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,423,078
CSS custom property--colour: #343B66;

Brightness & contrast

Relative luminance0.04817WCAG 2.x, 0 is black and 1 is white
Perceived brightness63.5 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 10.7:1
Contrast with white10.7:1WCAG normal text: AAA
Contrast with black1.96:1WCAG normal text: Fail
Greyscale equivalent#3D3D3D
Inverted#CBC499

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#2B4068no red cones; affects about 1% of men; ΔE 5.2 from the original
Deuteranopia#273C65no green cones; the most common form, about 1% of men; ΔE 4.4 from the original
Tritanopia#22444Bno blue cones; rare, and affects men and women equally; ΔE 27.1 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text10.7:1WCAG large text: AAA
Contrast with black, large text1.96:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 23Steel blue · ΔE 30.4Dark slate grey · ΔE 31.7Slate grey · ΔE 33.2Dim grey · ΔE 33.5Midnight blue · ΔE 33.5
Nearest named CSS colourDark slateblue (#483D8B)ΔE 23, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#665F34
Analogous#345466, #463466
Triadic#66343B, #3B6634
Split complementary#664634, #546634
Tetradic#663454, #665F34, #346646

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#9AA1CC
Lighter +30%#7982BA
Lighter +20%#5762A9
Lighter +10%#454F88
Darker −10%#232744
Darker −20%#121422
Darker −30%#000001
Darker −40%#000000
More saturated +25%#212D79
Less saturated −25%#474953

Channel breakdown

R52
G59
B102
Red52 (20.4%)
Green59 (23.1%)
Blue102 (40%)
Hue231.6°
Saturation (HSL)32.47%
Lightness30.2%
Dominant channelBlue
Hex per channelR 34 · G 3B · B 66

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Every value on this page was computed from “343b66” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.