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Recognised as Colour

#313ECF

  • #313ECF
  • Blue
  • Dark
  • Nearest: Medium slateblue

#313ECF is a blue with RGB values 49, 62, 207 and HSL 235°, 62%, 50%. It is a dark colour, so white text on it reaches 7.7:1 contrast (AAA for normal text). The nearest named colour is Medium slateblue.

Colour values

#313ECF#313ECF
HEX#313ECF
RGBrgb(49, 62, 207)
RGB (0–1)0.1922, 0.2431, 0.8118
RGB percentages19.2%, 24.3%, 81.2%
HSLhsl(235.1, 62.2%, 50.2%)
HSV / HSBhsv(235.1, 76.3%, 81.2%)
CMYK76.3%, 70%, 0%, 18.8%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,227,343
CSS custom property--colour: #313ECF;

Brightness & contrast

Relative luminance0.08603WCAG 2.x, 0 is black and 1 is white
Perceived brightness88.7 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 7.72:1
Contrast with white7.72:1WCAG normal text: AAA
Contrast with black2.72:1WCAG normal text: Fail
Greyscale equivalent#464646
Inverted#CEC130

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#005AD3no red cones; affects about 1% of men; ΔE 21.3 from the original
Deuteranopia#004BCCno green cones; the most common form, about 1% of men; ΔE 12.7 from the original
Tritanopia#006782no blue cones; rare, and affects men and women equally; ΔE 80.4 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text7.72:1WCAG large text: AAA
Contrast with black, large text2.72:1WCAG large text: Fail

Named colours

Medium slateblue · ΔE 20.2Dark blue · ΔE 22.3Slate blue · ΔE 22.3Royal blue · ΔE 24.8Navy · ΔE 24.9Blue violet · ΔE 25.9
Nearest named CSS colourMedium slateblue (#7B68EE)ΔE 20.16, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#CFC231
Analogous#318DCF, #7331CF
Triadic#CF313E, #3ECF31
Split complementary#CF7331, #8DCF31
Tetradic#CF318D, #CFC231, #31CF73

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#D6D9F6
Lighter +30%#ADB2EC
Lighter +20%#848CE2
Lighter +10%#5A65D9
Darker −10%#2731A6
Darker −20%#1D257D
Darker −30%#131954
Darker −40%#0A0C2A
More saturated +25%#1123EF
Less saturated −25%#5159AF

Channel breakdown

R49
G62
B207
Red49 (19.2%)
Green62 (24.3%)
Blue207 (81.2%)
Hue235.06°
Saturation (HSL)62.2%
Lightness50.2%
Dominant channelBlue
Hex per channelR 31 · G 3E · B CF

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Every value on this page was computed from “313ecf” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.