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Colour

#0000AA

  • #0000AA
  • Blue
  • Dark
  • Nearest: Dark blue

#0000AA is a blue with RGB values 0, 0, 170 and HSL 240°, 100%, 33%. It is a dark colour, so white text on it reaches 13.3:1 contrast (AAA for normal text). The nearest named colour is Dark blue.

Colour values

#0000AA#0000AA
HEX#0000AA
HEX (short)#00A
RGBrgb(0, 0, 170)
RGB (0–1)0, 0, 0.6667
RGB percentages0%, 0%, 66.7%
HSLhsl(240, 100%, 33.3%)
HSV / HSBhsv(240, 100%, 66.7%)
CMYK100%, 100%, 0%, 33.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer170
CSS custom property--colour: #0000AA;

Brightness & contrast

Relative luminance0.02902WCAG 2.x, 0 is black and 1 is white
Perceived brightness57.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 13.29:1
Contrast with white13.29:1WCAG normal text: AAA
Contrast with black1.58:1WCAG normal text: Fail
Greyscale equivalent#0C0C0C
Inverted#FFFF55

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0038AEno red cones; affects about 1% of men; ΔE 29.5 from the original
Deuteranopia#0026A8no green cones; the most common form, about 1% of men; ΔE 18.6 from the original
Tritanopia#004562no blue cones; rare, and affects men and women equally; ΔE 87.5 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text13.29:1WCAG large text: AAA
Contrast with black, large text1.58:1WCAG large text: Fail

Named colours

Dark blue · ΔE 14.4Medium blue · ΔE 15.7Navy · ΔE 19.7Blue violet · ΔE 25.7Indigo · ΔE 27.2Dark violet · ΔE 28.3
Nearest named CSS colourDark blue (#00008B)ΔE 14.4, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#AAAA00
Analogous#0055AA, #5500AA
Triadic#AA0000, #00AA00
Split complementary#AA5500, #55AA00
Tetradic#AA0055, #AAAA00, #00AA55

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#7777FF
Lighter +30%#4444FF
Lighter +20%#1111FF
Lighter +10%#0000DD
Darker −10%#000077
Darker −20%#000044
Darker −30%#000011
Darker −40%#000000
More saturated +25%#0000AA
Less saturated −25%#151595

Channel breakdown

R0
G0
B170
Red0 (0%)
Green0 (0%)
Blue170 (66.7%)
Hue240°
Saturation (HSL)100%
Lightness33.33%
Dominant channelBlue
Hex per channelR 00 · G 00 · B AA

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Every value on this page was computed from “0000aa” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.