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Recognised as Colour

#34558D

  • #34558D
  • Blue
  • Dark
  • Nearest: Steel blue

#34558D is a blue with RGB values 52, 85, 141 and HSL 218°, 46%, 38%. It is a dark colour, so white text on it reaches 7.4:1 contrast (AAA for normal text). The nearest named colour is Steel blue.

Colour values

#34558D#34558D
HEX#34558D
RGBrgb(52, 85, 141)
RGB (0–1)0.2039, 0.3333, 0.5529
RGB percentages20.4%, 33.3%, 55.3%
HSLhsl(217.8, 46.1%, 37.8%)
HSV / HSBhsv(217.8, 63.1%, 55.3%)
CMYK63.1%, 39.7%, 0%, 44.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,429,773
CSS custom property--colour: #34558D;

Brightness & contrast

Relative luminance0.0915WCAG 2.x, 0 is black and 1 is white
Perceived brightness85.5 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 7.42:1
Contrast with white7.42:1WCAG normal text: AAA
Contrast with black2.83:1WCAG normal text: Fail
Greyscale equivalent#525252
Inverted#CBAA72

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#3D5A8Fno red cones; affects about 1% of men; ΔE 3 from the original
Deuteranopia#30528Cno green cones; the most common form, about 1% of men; ΔE 1.9 from the original
Tritanopia#00626Ano blue cones; rare, and affects men and women equally; ΔE 36 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text7.42:1WCAG large text: AAA
Contrast with black, large text2.83:1WCAG large text: Fail

Named colours

Steel blue · ΔE 19.5Dark slateblue · ΔE 21.6Cornflower blue · ΔE 29.7Slate grey · ΔE 30.5Light slate grey · ΔE 31.9Midnight blue · ΔE 35.7
Nearest named CSS colourSteel blue (#4682B4)ΔE 19.5, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#8D6C34
Analogous#34828D, #40348D
Triadic#8D3455, #558D34
Split complementary#8D4034, #828D34
Tetradic#8D3481, #8D6C34, #348D40

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#ACC0E1
Lighter +30%#87A3D3
Lighter +20%#6287C5
Lighter +10%#426BB2
Darker −10%#263F68
Darker −20%#192842
Darker −30%#0B121D
Darker −40%#000000
More saturated +25%#1C4FA5
Less saturated −25%#4C5B75

Channel breakdown

R52
G85
B141
Red52 (20.4%)
Green85 (33.3%)
Blue141 (55.3%)
Hue217.75°
Saturation (HSL)46.11%
Lightness37.84%
Dominant channelBlue
Hex per channelR 34 · G 55 · B 8D

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Every value on this page was computed from “34558d” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.