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Recognised as Colour

#273AAF

  • #273AAF
  • Blue
  • Dark
  • Nearest: Slate blue

#273AAF is a blue with RGB values 39, 58, 175 and HSL 232°, 64%, 42%. It is a dark colour, so white text on it reaches 9.1:1 contrast (AAA for normal text). The nearest named colour is Slate blue.

Colour values

#273AAF#273AAF
HEX#273AAF
RGBrgb(39, 58, 175)
RGB (0–1)0.1529, 0.2275, 0.6863
RGB percentages15.3%, 22.7%, 68.6%
HSLhsl(231.6, 63.6%, 42%)
HSV / HSBhsv(231.6, 77.7%, 68.6%)
CMYK77.7%, 66.9%, 0%, 31.4%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,570,927
CSS custom property--colour: #273AAF;

Brightness & contrast

Relative luminance0.06553WCAG 2.x, 0 is black and 1 is white
Perceived brightness76.9 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 9.09:1
Contrast with white9.09:1WCAG normal text: AAA
Contrast with black2.31:1WCAG normal text: Fail
Greyscale equivalent#3E3E3E
Inverted#D8C550

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#004FB3no red cones; affects about 1% of men; ΔE 16.6 from the original
Deuteranopia#0042ADno green cones; the most common form, about 1% of men; ΔE 8.8 from the original
Tritanopia#005A6Fno blue cones; rare, and affects men and women equally; ΔE 67.8 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text9.09:1WCAG large text: AAA
Contrast with black, large text2.31:1WCAG large text: Fail

Named colours

Slate blue · ΔE 15.9Rebecca purple · ΔE 18.8Royal blue · ΔE 19.3Midnight blue · ΔE 21.1Navy · ΔE 21.7Medium slateblue · ΔE 22.2
Nearest named CSS colourSlate blue (#6A5ACD)ΔE 15.92, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#AF9C27
Analogous#277EAF, #5827AF
Triadic#AF273A, #3AAF27
Split complementary#AF5827, #7EAF27
Tetradic#AF277E, #AF9C27, #27AF58

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#B4BCEE
Lighter +30%#8A97E5
Lighter +20%#6072DC
Lighter +10%#374CD2
Darker −10%#1E2C85
Darker −20%#141E5C
Darker −30%#0B1132
Darker −40%#020308
More saturated +25%#0C27CA
Less saturated −25%#424D94

Channel breakdown

R39
G58
B175
Red39 (15.3%)
Green58 (22.7%)
Blue175 (68.6%)
Hue231.62°
Saturation (HSL)63.55%
Lightness41.96%
Dominant channelBlue
Hex per channelR 27 · G 3A · B AF

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Every value on this page was computed from “273aaf” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.