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Colour

#003AA3

  • #003AA3
  • Blue
  • Dark
  • Nearest: Midnight blue

#003AA3 is a blue with RGB values 0, 58, 163 and HSL 219°, 100%, 32%. It is a dark colour, so white text on it reaches 9.8:1 contrast (AAA for normal text). The nearest named colour is Midnight blue.

Colour values

#003AA3#003AA3
HEX#003AA3
RGBrgb(0, 58, 163)
RGB (0–1)0, 0.2275, 0.6392
RGB percentages0%, 22.7%, 63.9%
HSLhsl(218.7, 100%, 32%)
HSV / HSBhsv(218.7, 100%, 63.9%)
CMYK100%, 64.4%, 0%, 36.1%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer15,011
CSS custom property--colour: #003AA3;

Brightness & contrast

Relative luminance0.0567WCAG 2.x, 0 is black and 1 is white
Perceived brightness70.7 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 9.84:1
Contrast with white9.84:1WCAG normal text: AAA
Contrast with black2.13:1WCAG normal text: Fail
Greyscale equivalent#353535
Inverted#FFC55C

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#004BA6no red cones; affects about 1% of men; ΔE 13.2 from the original
Deuteranopia#003CA1no green cones; the most common form, about 1% of men; ΔE 2.8 from the original
Tritanopia#005669no blue cones; rare, and affects men and women equally; ΔE 61.2 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text9.84:1WCAG large text: AAA
Contrast with black, large text2.13:1WCAG large text: Fail

Named colours

Midnight blue · ΔE 17.2Dark slateblue · ΔE 18.7Slate blue · ΔE 18.7Royal blue · ΔE 19.9Rebecca purple · ΔE 20.4Navy · ΔE 25.2
Nearest named CSS colourMidnight blue (#191970)ΔE 17.18, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#A36900
Analogous#008BA3, #1800A3
Triadic#A3003A, #3AA300
Split complementary#A31800, #8BA300
Tetradic#A3008B, #A36900, #00A318

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#70A3FF
Lighter +30%#3D82FF
Lighter +20%#0A61FF
Lighter +10%#004CD6
Darker −10%#002870
Darker −20%#00163D
Darker −30%#00040A
Darker −40%#000000
More saturated +25%#003AA3
Less saturated −25%#14408F

Channel breakdown

R0
G58
B163
Red0 (0%)
Green58 (22.7%)
Blue163 (63.9%)
Hue218.65°
Saturation (HSL)100%
Lightness31.96%
Dominant channelBlue
Hex per channelR 00 · G 3A · B A3

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Every value on this page was computed from “003aa3” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.