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Recognised as Colour

#0171AA

  • #0171AA
  • Blue
  • Dark
  • Nearest: Steel blue

#0171AA is a blue with RGB values 1, 113, 170 and HSL 200°, 99%, 34%. It is a dark colour, so white text on it reaches 5.3:1 contrast (AA for normal text). The nearest named colour is Steel blue.

Colour values

#0171AA#0171AA
HEX#0171AA
RGBrgb(1, 113, 170)
RGB (0–1)0.0039, 0.4431, 0.6667
RGB percentages0.4%, 44.3%, 66.7%
HSLhsl(200.2, 98.8%, 33.5%)
HSV / HSBhsv(200.2, 99.4%, 66.7%)
CMYK99.4%, 33.5%, 0%, 33.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer94,634
CSS custom property--colour: #0171AA;

Brightness & contrast

Relative luminance0.14719WCAG 2.x, 0 is black and 1 is white
Perceived brightness103.9 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 5.32:1
Contrast with white5.32:1WCAG normal text: AA
Contrast with black3.94:1WCAG normal text: Fail
Greyscale equivalent#5D5D5D
Inverted#FE8E55

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#5572ACno red cones; affects about 1% of men; ΔE 12.4 from the original
Deuteranopia#4065A9no green cones; the most common form, about 1% of men; ΔE 14.3 from the original
Tritanopia#007F85no blue cones; rare, and affects men and women equally; ΔE 34 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text5.32:1WCAG large text: AAA
Contrast with black, large text3.94:1WCAG large text: AA

Named colours

Steel blue · ΔE 9.2Cornflower blue · ΔE 24.9Slate grey · ΔE 28.5Light slate grey · ΔE 28.9Deep skyblue · ΔE 30.4Dodgerblue · ΔE 32.9
Nearest named CSS colourSteel blue (#4682B4)ΔE 9.25, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#AA3A01
Analogous#01AA8F, #011CAA
Triadic#AA0171, #71AA01
Split complementary#AA011C, #AA8F01
Tetradic#8F01AA, #AA3A01, #1CAA01

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#79D1FE
Lighter +30%#46C0FE
Lighter +20%#13AFFE
Lighter +10%#0193DD
Darker −10%#014F77
Darker −20%#002E45
Darker −30%#000C12
Darker −40%#000000
More saturated +25%#0071AB
Less saturated −25%#166A95

Channel breakdown

R1
G113
B170
Red1 (0.4%)
Green113 (44.3%)
Blue170 (66.7%)
Hue200.24°
Saturation (HSL)98.83%
Lightness33.53%
Dominant channelBlue
Hex per channelR 01 · G 71 · B AA

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Every value on this page was computed from “0171aa” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.