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Colour

#003A9A

  • #003A9A
  • Blue
  • Dark
  • Nearest: Dark slateblue

#003A9A is a blue with RGB values 0, 58, 154 and HSL 217°, 100%, 30%. It is a dark colour, so white text on it reaches 10.1:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#003A9A#003A9A
HEX#003A9A
RGBrgb(0, 58, 154)
RGB (0–1)0, 0.2275, 0.6039
RGB percentages0%, 22.7%, 60.4%
HSLhsl(217.4, 100%, 30.2%)
HSV / HSBhsv(217.4, 100%, 60.4%)
CMYK100%, 62.3%, 0%, 39.6%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer15,002
CSS custom property--colour: #003A9A;

Brightness & contrast

Relative luminance0.05359WCAG 2.x, 0 is black and 1 is white
Perceived brightness68.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 10.14:1
Contrast with white10.14:1WCAG normal text: AAA
Contrast with black2.07:1WCAG normal text: Fail
Greyscale equivalent#353535
Inverted#FFC565

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#00489Dno red cones; affects about 1% of men; ΔE 10.7 from the original
Deuteranopia#003B98no green cones; the most common form, about 1% of men; ΔE 2.1 from the original
Tritanopia#005364no blue cones; rare, and affects men and women equally; ΔE 56.7 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text10.14:1WCAG large text: AAA
Contrast with black, large text2.07:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 14.8Midnight blue · ΔE 15.5Slate blue · ΔE 21.1Rebecca purple · ΔE 21.3Royal blue · ΔE 22Indigo · ΔE 28.4
Nearest named CSS colourDark slateblue (#483D8B)ΔE 14.81, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#9A6000
Analogous#00879A, #13009A
Triadic#9A003A, #3A9A00
Split complementary#9A1300, #879A00
Tetradic#9A0087, #9A6000, #009A13

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#67A0FF
Lighter +30%#3480FF
Lighter +20%#0161FF
Lighter +10%#004DCD
Darker −10%#002767
Darker −20%#001434
Darker −30%#000001
Darker −40%#000000
More saturated +25%#003A9A
Less saturated −25%#133F87

Channel breakdown

R0
G58
B154
Red0 (0%)
Green58 (22.7%)
Blue154 (60.4%)
Hue217.4°
Saturation (HSL)100%
Lightness30.2%
Dominant channelBlue
Hex per channelR 00 · G 3A · B 9A

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Every value on this page was computed from “003a9a” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.