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Recognised as Colour

#343B58

  • #343B58
  • Blue
  • Dark
  • Nearest: Dark slate grey

#343B58 is a blue with RGB values 52, 59, 88 and HSL 228°, 26%, 27%. It is a dark colour, so white text on it reaches 11:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.

Colour values

#343B58#343B58
HEX#343B58
RGBrgb(52, 59, 88)
RGB (0–1)0.2039, 0.2314, 0.3451
RGB percentages20.4%, 23.1%, 34.5%
HSLhsl(228.3, 25.7%, 27.5%)
HSV / HSBhsv(228.3, 40.9%, 34.5%)
CMYK40.9%, 33%, 0%, 65.5%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,423,064
CSS custom property--colour: #343B58;

Brightness & contrast

Relative luminance0.04563WCAG 2.x, 0 is black and 1 is white
Perceived brightness61.1 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 10.98:1
Contrast with white10.98:1WCAG normal text: AAA
Contrast with black1.91:1WCAG normal text: Fail
Greyscale equivalent#3C3C3C
Inverted#CBC4A7

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#313E59no red cones; affects about 1% of men; ΔE 2.8 from the original
Deuteranopia#2F3B57no green cones; the most common form, about 1% of men; ΔE 1.9 from the original
Tritanopia#294145no blue cones; rare, and affects men and women equally; ΔE 18.7 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text10.98:1WCAG large text: AAA
Contrast with black, large text1.91:1WCAG large text: Fail

Named colours

Dark slate grey · ΔE 23.2Dim grey · ΔE 26.9Slate grey · ΔE 29.5Steel blue · ΔE 31.8Black · ΔE 31.8Dark slateblue · ΔE 31.9
Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 23.25, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#585134
Analogous#344D58, #3F3458
Triadic#58343B, #3B5834
Split complementary#583F34, #4D5834
Tetradic#58344D, #585134, #34583F

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#979FC1
Lighter +30%#7781AE
Lighter +20%#5A6698
Lighter +10%#475078
Darker −10%#212638
Darker −20%#0E1018
Darker −30%#000000
Darker −40%#000000
More saturated +25%#23306A
Less saturated −25%#464647

Channel breakdown

R52
G59
B88
Red52 (20.4%)
Green59 (23.1%)
Blue88 (34.5%)
Hue228.33°
Saturation (HSL)25.71%
Lightness27.45%
Dominant channelBlue
Hex per channelR 34 · G 3B · B 58

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Every value on this page was computed from “343b58” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.