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Colour

#2740FF

  • #2740FF
  • Blue
  • Dark
  • Nearest: Medium blue

#2740FF is a blue with RGB values 39, 64, 255 and HSL 233°, 100%, 58%. It is a dark colour, so white text on it reaches 6.4:1 contrast (AA for normal text). The nearest named colour is Medium blue.

Colour values

#2740FF#2740FF
HEX#2740FF
RGBrgb(39, 64, 255)
RGB (0–1)0.1529, 0.251, 1
RGB percentages15.3%, 25.1%, 100%
HSLhsl(233.1, 100%, 57.6%)
HSV / HSBhsv(233.1, 84.7%, 100%)
CMYK84.7%, 74.9%, 0%, 0%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,572,543
CSS custom property--colour: #2740FF;

Brightness & contrast

Relative luminance0.11318WCAG 2.x, 0 is black and 1 is white
Perceived brightness101.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 6.43:1
Contrast with white6.43:1WCAG normal text: AA
Contrast with black3.26:1WCAG normal text: Fail
Greyscale equivalent#484848
Inverted#D8BF00

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0069FFno red cones; affects about 1% of men; ΔE 30.6 from the original
Deuteranopia#0054FCno green cones; the most common form, about 1% of men; ΔE 15.7 from the original
Tritanopia#007A9Dno blue cones; rare, and affects men and women equally; ΔE 101.2 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text6.43:1WCAG large text: AAA
Contrast with black, large text3.26:1WCAG large text: AA

Named colours

Medium blue · ΔE 17.5Blue violet · ΔE 22.9Blue · ΔE 25.2Dark violet · ΔE 29.9Dark orchid · ΔE 35.4Medium slateblue · ΔE 36.5
Nearest named CSS colourMedium blue (#0000CD)ΔE 17.5, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#FFE627
Analogous#27ACFF, #7A27FF
Triadic#FF2740, #40FF27
Split complementary#FF7A27, #ACFF27
Tetradic#FF27AC, #FFE627, #27FF7A

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#F3F4FF
Lighter +30%#C0C7FF
Lighter +20%#8D9AFF
Lighter +10%#5A6DFF
Darker −10%#001CF3
Darker −20%#0016C0
Darker −30%#00108D
Darker −40%#000A5A
More saturated +25%#2740FF
Less saturated −25%#4255E4

Channel breakdown

R39
G64
B255
Red39 (15.3%)
Green64 (25.1%)
Blue255 (100%)
Hue233.06°
Saturation (HSL)100%
Lightness57.65%
Dominant channelBlue
Hex per channelR 27 · G 40 · B FF

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Every value on this page was computed from “2740ff” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.