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Recognised as Colour

#2750A3

  • #2750A3
  • Blue
  • Dark
  • Nearest: Dark slateblue

#2750A3 is a blue with RGB values 39, 80, 163 and HSL 220°, 61%, 40%. It is a dark colour, so white text on it reaches 7.6:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#2750A3#2750A3
HEX#2750A3
RGBrgb(39, 80, 163)
RGB (0–1)0.1529, 0.3137, 0.6392
RGB percentages15.3%, 31.4%, 63.9%
HSLhsl(220.2, 61.4%, 39.6%)
HSV / HSBhsv(220.2, 76.1%, 63.9%)
CMYK76.1%, 50.9%, 0%, 36.1%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,576,547
CSS custom property--colour: #2750A3;

Brightness & contrast

Relative luminance0.08813WCAG 2.x, 0 is black and 1 is white
Perceived brightness85.1 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 7.6:1
Contrast with white7.6:1WCAG normal text: AAA
Contrast with black2.76:1WCAG normal text: Fail
Greyscale equivalent#4D4D4D
Inverted#D8AF5C

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#1D5AA6no red cones; affects about 1% of men; ΔE 7.6 from the original
Deuteranopia#004EA1no green cones; the most common form, about 1% of men; ΔE 3.2 from the original
Tritanopia#006472no blue cones; rare, and affects men and women equally; ΔE 49.1 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text7.6:1WCAG large text: AAA
Contrast with black, large text2.76:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 13.1Royal blue · ΔE 22.8Slate blue · ΔE 23.9Midnight blue · ΔE 25.3Rebecca purple · ΔE 27.1Cornflower blue · ΔE 27.1
Nearest named CSS colourDark slateblue (#483D8B)ΔE 13.14, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#A37A27
Analogous#278EA3, #3C27A3
Triadic#A32750, #50A327
Split complementary#A33C27, #8EA327
Tetradic#A3278E, #A37A27, #27A33C

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#ABC0EB
Lighter +30%#82A1E1
Lighter +20%#5983D7
Lighter +10%#3164CC
Darker −10%#1D3C7A
Darker −20%#132851
Darker −30%#091328
Darker −40%#000000
More saturated +25%#0E47BC
Less saturated −25%#40598A

Channel breakdown

R39
G80
B163
Red39 (15.3%)
Green80 (31.4%)
Blue163 (63.9%)
Hue220.16°
Saturation (HSL)61.39%
Lightness39.61%
Dominant channelBlue
Hex per channelR 27 · G 50 · B A3

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Every value on this page was computed from “2750a3” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.