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Recognised as Colour

#2749C8

  • #2749C8
  • Blue
  • Dark
  • Nearest: Slate blue

#2749C8 is a blue with RGB values 39, 73, 200 and HSL 227°, 67%, 47%. It is a dark colour, so white text on it reaches 7.3:1 contrast (AAA for normal text). The nearest named colour is Slate blue.

Colour values

#2749C8#2749C8
HEX#2749C8
RGBrgb(39, 73, 200)
RGB (0–1)0.1529, 0.2863, 0.7843
RGB percentages15.3%, 28.6%, 78.4%
HSLhsl(227.3, 67.4%, 46.9%)
HSV / HSBhsv(227.3, 80.5%, 78.4%)
CMYK80.5%, 63.5%, 0%, 21.6%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,574,792
CSS custom property--colour: #2749C8;

Brightness & contrast

Relative luminance0.09367WCAG 2.x, 0 is black and 1 is white
Perceived brightness90.2 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 7.31:1
Contrast with white7.31:1WCAG normal text: AAA
Contrast with black2.87:1WCAG normal text: Fail
Greyscale equivalent#4B4B4B
Inverted#D8B637

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#005ECCno red cones; affects about 1% of men; ΔE 16.3 from the original
Deuteranopia#004FC6no green cones; the most common form, about 1% of men; ΔE 7 from the original
Tritanopia#006B82no blue cones; rare, and affects men and women equally; ΔE 71.6 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text7.31:1WCAG large text: AAA
Contrast with black, large text2.87:1WCAG large text: Fail

Named colours

Slate blue · ΔE 14.4Royal blue · ΔE 14.5Medium slateblue · ΔE 17.1Rebecca purple · ΔE 23.8Medium purple · ΔE 26.5Dark blue · ΔE 27
Nearest named CSS colourSlate blue (#6A5ACD)ΔE 14.36, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#C8A627
Analogous#279AC8, #5527C8
Triadic#C82749, #49C827
Split complementary#C85527, #9AC827
Tetradic#C8279A, #C8A627, #27C855

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#C7D0F4
Lighter +30%#9CADEC
Lighter +20%#728AE3
Lighter +10%#4766DB
Darker −10%#1F399D
Darker −20%#162A73
Darker −30%#0E1A48
Darker −40%#060B1D
More saturated +25%#0938E6
Less saturated −25%#455AAA

Channel breakdown

R39
G73
B200
Red39 (15.3%)
Green73 (28.6%)
Blue200 (78.4%)
Hue227.33°
Saturation (HSL)67.36%
Lightness46.86%
Dominant channelBlue
Hex per channelR 27 · G 49 · B C8

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Every value on this page was computed from “2749c8” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.