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Recognised as Colour

#3A4E79

  • #3A4E79
  • Blue
  • Dark
  • Nearest: Steel blue

#3A4E79 is a blue with RGB values 58, 78, 121 and HSL 221°, 35%, 35%. It is a dark colour, so white text on it reaches 8.2:1 contrast (AAA for normal text). The nearest named colour is Steel blue.

Colour values

#3A4E79#3A4E79
HEX#3A4E79
RGBrgb(58, 78, 121)
RGB (0–1)0.2275, 0.3059, 0.4745
RGB percentages22.7%, 30.6%, 47.5%
HSLhsl(221, 35.2%, 35.1%)
HSV / HSBhsv(221, 52.1%, 47.5%)
CMYK52.1%, 35.5%, 0%, 52.5%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,821,177
CSS custom property--colour: #3A4E79;

Brightness & contrast

Relative luminance0.07729WCAG 2.x, 0 is black and 1 is white
Perceived brightness79 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 8.25:1
Contrast with white8.25:1WCAG normal text: AAA
Contrast with black2.55:1WCAG normal text: Fail
Greyscale equivalent#4D4D4D
Inverted#C5B186

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#3E527Bno red cones; affects about 1% of men; ΔE 2.2 from the original
Deuteranopia#364C78no green cones; the most common form, about 1% of men; ΔE 1.2 from the original
Tritanopia#1E575Eno blue cones; rare, and affects men and women equally; ΔE 27.5 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text8.25:1WCAG large text: AAA
Contrast with black, large text2.55:1WCAG large text: Fail

Named colours

Steel blue · ΔE 21.9Dark slateblue · ΔE 25.8Slate grey · ΔE 26.5Light slate grey · ΔE 28.5Dark slate grey · ΔE 28.9Dim grey · ΔE 29.5
Nearest named CSS colourSteel blue (#4682B4)ΔE 21.94, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#79653A
Analogous#3A6D79, #463A79
Triadic#793A4E, #4E793A
Split complementary#79463A, #6D793A
Tetradic#793A6D, #79653A, #3A7946

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#A9B7D6
Lighter +30%#879BC5
Lighter +20%#647EB5
Lighter +10%#4B649B
Darker −10%#293857
Darker −20%#192234
Darker −30%#080B12
Darker −40%#000000
More saturated +25%#24468F
Less saturated −25%#505663

Channel breakdown

R58
G78
B121
Red58 (22.7%)
Green78 (30.6%)
Blue121 (47.5%)
Hue220.95°
Saturation (HSL)35.2%
Lightness35.1%
Dominant channelBlue
Hex per channelR 3A · G 4E · B 79

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Every value on this page was computed from “3a4e79” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.