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Recognised as Colour

#818CEC

  • #818CEC
  • Blue
  • Dark
  • Nearest: Cornflower blue

#818CEC is a blue with RGB values 129, 140, 236 and HSL 234°, 74%, 72%. It is a dark colour, so black text on it reaches 6.9:1 contrast (AA for normal text). The nearest named colour is Cornflower blue.

Colour values

#818CEC#818CEC
HEX#818CEC
RGBrgb(129, 140, 236)
RGB (0–1)0.5059, 0.549, 0.9255
RGB percentages50.6%, 54.9%, 92.5%
HSLhsl(233.8, 73.8%, 71.6%)
HSV / HSBhsv(233.8, 45.3%, 92.5%)
CMYK45.3%, 40.7%, 0%, 7.5%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer8,490,220
CSS custom property--colour: #818CEC;

Brightness & contrast

Relative luminance0.29479WCAG 2.x, 0 is black and 1 is white
Perceived brightness151.1 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 6.9:1
Contrast with white3.05:1WCAG normal text: Fail
Contrast with black6.9:1WCAG normal text: AA
Greyscale equivalent#919191
Inverted#7E7313

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#6898F0no red cones; affects about 1% of men; ΔE 11.5 from the original
Deuteranopia#5F90EAno green cones; the most common form, about 1% of men; ΔE 10.4 from the original
Tritanopia#5BA0B1no blue cones; rare, and affects men and women equally; ΔE 51 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text3.05:1WCAG large text: AA
Contrast with black, large text6.9:1WCAG large text: AAA

Named colours

Cornflower blue · ΔE 11.4Medium purple · ΔE 17.3Dodgerblue · ΔE 17.4Royal blue · ΔE 21.2Slate blue · ΔE 23.5Medium slateblue · ΔE 27.2
Nearest named CSS colourCornflower blue (#6495ED)ΔE 11.36, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#ECE181
Analogous#81C1EC, #AB81EC
Triadic#EC818C, #8CEC81
Split complementary#ECAB81, #C1EC81
Tetradic#EC81C1, #ECE181, #81ECAC

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FFFFFF
Lighter +30%#FFFFFF
Lighter +20%#DADDF9
Lighter +10%#ADB4F3
Darker −10%#5564E5
Darker −20%#283BDF
Darker −30%#1C2CB8
Darker −40%#15218C
More saturated +25%#6F7EFE
Less saturated −25%#939ADA

Channel breakdown

R129
G140
B236
Red129 (50.6%)
Green140 (54.9%)
Blue236 (92.5%)
Hue233.83°
Saturation (HSL)73.79%
Lightness71.57%
Dominant channelBlue
Hex per channelR 81 · G 8C · B EC

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Every value on this page was computed from “818cec” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.