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Recognised as Colour

#343DB5

  • #343DB5
  • Blue
  • Dark
  • Nearest: Slate blue

#343DB5 is a blue with RGB values 52, 61, 181 and HSL 236°, 55%, 46%. It is a dark colour, so white text on it reaches 8.5:1 contrast (AAA for normal text). The nearest named colour is Slate blue.

Colour values

#343DB5#343DB5
HEX#343DB5
RGBrgb(52, 61, 181)
RGB (0–1)0.2039, 0.2392, 0.7098
RGB percentages20.4%, 23.9%, 71%
HSLhsl(235.8, 55.4%, 45.7%)
HSV / HSBhsv(235.8, 71.3%, 71%)
CMYK71.3%, 66.3%, 0%, 29%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,423,669
CSS custom property--colour: #343DB5;

Brightness & contrast

Relative luminance0.07404WCAG 2.x, 0 is black and 1 is white
Perceived brightness82 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 8.47:1
Contrast with white8.47:1WCAG normal text: AAA
Contrast with black2.48:1WCAG normal text: Fail
Greyscale equivalent#444444
Inverted#CBC24A

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0053B9no red cones; affects about 1% of men; ΔE 18 from the original
Deuteranopia#0047B3no green cones; the most common form, about 1% of men; ΔE 11.3 from the original
Tritanopia#005D73no blue cones; rare, and affects men and women equally; ΔE 68.9 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text8.47:1WCAG large text: AAA
Contrast with black, large text2.48:1WCAG large text: Fail

Named colours

Slate blue · ΔE 14.3Rebecca purple · ΔE 18.4Royal blue · ΔE 18.4Medium slateblue · ΔE 19.9Indigo · ΔE 22.3Navy · ΔE 22.4
Nearest named CSS colourSlate blue (#6A5ACD)ΔE 14.32, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#B5AC34
Analogous#347DB5, #6C34B5
Triadic#B5343D, #3DB534
Split complementary#B56B34, #7EB534
Tetradic#B5347D, #B5AC34, #34B56B

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#C6C9EF
Lighter +30%#9FA3E3
Lighter +20%#777ED8
Lighter +10%#4F58CD
Darker −10%#29308D
Darker −20%#1D2266
Darker −30%#12153E
Darker −40%#060817
More saturated +25%#1724D2
Less saturated −25%#515698

Channel breakdown

R52
G61
B181
Red52 (20.4%)
Green61 (23.9%)
Blue181 (71%)
Hue235.81°
Saturation (HSL)55.36%
Lightness45.69%
Dominant channelBlue
Hex per channelR 34 · G 3D · B B5

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Every value on this page was computed from “343db5” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.