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Recognised as Colour

#3A64A9

  • #3A64A9
  • Blue
  • Dark
  • Nearest: Steel blue

#3A64A9 is a blue with RGB values 58, 100, 169 and HSL 217°, 49%, 45%. It is a dark colour, so white text on it reaches 5.9:1 contrast (AA for normal text). The nearest named colour is Steel blue.

Colour values

#3A64A9#3A64A9
HEX#3A64A9
RGBrgb(58, 100, 169)
RGB (0–1)0.2275, 0.3922, 0.6627
RGB percentages22.7%, 39.2%, 66.3%
HSLhsl(217.3, 48.9%, 44.5%)
HSV / HSBhsv(217.3, 65.7%, 66.3%)
CMYK65.7%, 40.8%, 0%, 33.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,826,857
CSS custom property--colour: #3A64A9;

Brightness & contrast

Relative luminance0.12878WCAG 2.x, 0 is black and 1 is white
Perceived brightness100.7 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 5.87:1
Contrast with white5.87:1WCAG normal text: AA
Contrast with black3.58:1WCAG normal text: Fail
Greyscale equivalent#606060
Inverted#C59B56

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#456AACno red cones; affects about 1% of men; ΔE 3.3 from the original
Deuteranopia#3460A8no green cones; the most common form, about 1% of men; ΔE 2.6 from the original
Tritanopia#00747Eno blue cones; rare, and affects men and women equally; ΔE 42.3 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text5.87:1WCAG large text: AAA
Contrast with black, large text3.58:1WCAG large text: AA

Named colours

Steel blue · ΔE 18.2Cornflower blue · ΔE 20.9Dark slateblue · ΔE 21.4Dodgerblue · ΔE 27.7Royal blue · ΔE 30.4Medium purple · ΔE 32.4
Nearest named CSS colourSteel blue (#4682B4)ΔE 18.22, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#A97F3A
Analogous#3A9CA9, #483AA9
Triadic#A93A64, #64A93A
Split complementary#A9473A, #9CA93A
Tetradic#A93A9B, #A97F3A, #3AA947

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#C4D3EB
Lighter +30%#9EB6DE
Lighter +20%#789AD1
Lighter +10%#527DC4
Darker −10%#2D4E83
Darker −20%#20375D
Darker −30%#132137
Darker −40%#060A11
More saturated +25%#1E5DC5
Less saturated −25%#566B8D

Channel breakdown

R58
G100
B169
Red58 (22.7%)
Green100 (39.2%)
Blue169 (66.3%)
Hue217.3°
Saturation (HSL)48.9%
Lightness44.51%
Dominant channelBlue
Hex per channelR 3A · G 64 · B A9

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Every value on this page was computed from “3a64a9” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.