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Recognised as Colour

#2C55AA

  • #2C55AA
  • Blue
  • Dark
  • Nearest: Dark slateblue

#2C55AA is a blue with RGB values 44, 85, 170 and HSL 220°, 59%, 42%. It is a dark colour, so white text on it reaches 7:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#2C55AA#2C55AA
HEX#2C55AA
RGBrgb(44, 85, 170)
RGB (0–1)0.1725, 0.3333, 0.6667
RGB percentages17.3%, 33.3%, 66.7%
HSLhsl(220.5, 58.9%, 42%)
HSV / HSBhsv(220.5, 74.1%, 66.7%)
CMYK74.1%, 50%, 0%, 33.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,905,514
CSS custom property--colour: #2C55AA;

Brightness & contrast

Relative luminance0.09935WCAG 2.x, 0 is black and 1 is white
Perceived brightness90.1 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 7.03:1
Contrast with white7.03:1WCAG normal text: AAA
Contrast with black2.99:1WCAG normal text: Fail
Greyscale equivalent#525252
Inverted#D3AA55

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#235FADno red cones; affects about 1% of men; ΔE 7.6 from the original
Deuteranopia#0053A8no green cones; the most common form, about 1% of men; ΔE 3.8 from the original
Tritanopia#006977no blue cones; rare, and affects men and women equally; ΔE 50.2 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text7.03:1WCAG large text: AAA
Contrast with black, large text2.99:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 14.4Royal blue · ΔE 21.1Slate blue · ΔE 22.8Cornflower blue · ΔE 25.1Dodgerblue · ΔE 26.3Midnight blue · ΔE 26.9
Nearest named CSS colourDark slateblue (#483D8B)ΔE 14.42, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#AA812C
Analogous#2C94AA, #422CAA
Triadic#AA2C55, #55AA2C
Split complementary#AA422C, #94AA2C
Tetradic#AA2C94, #AA812C, #2CAA42

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#B6C8EC
Lighter +30%#8DA9E2
Lighter +20%#658AD7
Lighter +10%#3C6BCD
Darker −10%#224181
Darker −20%#172C59
Darker −30%#0D1830
Darker −40%#020408
More saturated +25%#114CC5
Less saturated −25%#475E8F

Channel breakdown

R44
G85
B170
Red44 (17.3%)
Green85 (33.3%)
Blue170 (66.7%)
Hue220.48°
Saturation (HSL)58.88%
Lightness41.96%
Dominant channelBlue
Hex per channelR 2C · G 55 · B AA

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Every value on this page was computed from “2c55aa” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.