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Recognised as Colour

#343D58

  • #343D58
  • Blue
  • Dark
  • Nearest: Dark slate grey

#343D58 is a blue with RGB values 52, 61, 88 and HSL 225°, 26%, 27%. 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 slate grey.

Colour values

#343D58#343D58
HEX#343D58
RGBrgb(52, 61, 88)
RGB (0–1)0.2039, 0.2392, 0.3451
RGB percentages20.4%, 23.9%, 34.5%
HSLhsl(225, 25.7%, 27.5%)
HSV / HSBhsv(225, 40.9%, 34.5%)
CMYK40.9%, 30.7%, 0%, 65.5%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,423,576
CSS custom property--colour: #343D58;

Brightness & contrast

Relative luminance0.04772WCAG 2.x, 0 is black and 1 is white
Perceived brightness62.3 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 10.74:1
Contrast with white10.74:1WCAG normal text: AAA
Contrast with black1.95:1WCAG normal text: Fail
Greyscale equivalent#3D3D3D
Inverted#CBC2A7

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#343F59no red cones; affects about 1% of men; ΔE 1.3 from the original
Deuteranopia#313C57no green cones; the most common form, about 1% of men; ΔE 0.9 from the original
Tritanopia#294246no blue cones; rare, and affects men and women equally; ΔE 17.2 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text10.74:1WCAG large text: AAA
Contrast with black, large text1.95:1WCAG large text: Fail

Named colours

Dark slate grey · ΔE 21.5Dim grey · ΔE 25.6Slate grey · ΔE 28.3Light slate grey · ΔE 31.1Steel blue · ΔE 31.3Black · ΔE 31.6
Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 21.49, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#584F34
Analogous#344F58, #3D3458
Triadic#58343D, #3D5834
Split complementary#583D34, #4F5834
Tetradic#58344F, #584F34, #34583D

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#97A1C1
Lighter +30%#7785AE
Lighter +20%#5A6998
Lighter +10%#475378
Darker −10%#212738
Darker −20%#0E1118
Darker −30%#000000
Darker −40%#000000
More saturated +25%#23346A
Less saturated −25%#464647

Channel breakdown

R52
G61
B88
Red52 (20.4%)
Green61 (23.9%)
Blue88 (34.5%)
Hue225°
Saturation (HSL)25.71%
Lightness27.45%
Dominant channelBlue
Hex per channelR 34 · G 3D · B 58

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Every value on this page was computed from “343d58” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.