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Recognised as Colour

#518CDA

  • #518CDA
  • Blue
  • Dark
  • Nearest: Cornflower blue

#518CDA is a blue with RGB values 81, 140, 218 and HSL 214°, 65%, 59%. It is a dark colour, so black text on it reaches 6.1:1 contrast (AA for normal text). The nearest named colour is Cornflower blue.

Colour values

#518CDA#518CDA
HEX#518CDA
RGBrgb(81, 140, 218)
RGB (0–1)0.3176, 0.549, 0.8549
RGB percentages31.8%, 54.9%, 85.5%
HSLhsl(214.2, 64.9%, 58.6%)
HSV / HSBhsv(214.2, 62.8%, 85.5%)
CMYK62.8%, 35.8%, 0%, 14.5%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer5,344,474
CSS custom property--colour: #518CDA;

Brightness & contrast

Relative luminance0.25567WCAG 2.x, 0 is black and 1 is white
Perceived brightness137.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 6.11:1
Contrast with white3.44:1WCAG normal text: Fail
Contrast with black6.11:1WCAG normal text: AA
Greyscale equivalent#858585
Inverted#AE7325

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#6A91DDno red cones; affects about 1% of men; ΔE 4.9 from the original
Deuteranopia#5785D8no green cones; the most common form, about 1% of men; ΔE 5.2 from the original
Tritanopia#009EA9no blue cones; rare, and affects men and women equally; ΔE 46.1 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text3.44:1WCAG large text: AA
Contrast with black, large text6.11:1WCAG large text: AAA

Named colours

Cornflower blue · ΔE 7.3Steel blue · ΔE 16.9Dodgerblue · ΔE 18.6Deep skyblue · ΔE 27.2Royal blue · ΔE 30.7Light skyblue · ΔE 32
Nearest named CSS colourCornflower blue (#6495ED)ΔE 7.25, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#DA9F51
Analogous#51D0DA, #5B51DA
Triadic#DA518C, #8CDA51
Split complementary#DA5B51, #D0DA51
Tetradic#DA51D0, #DA9F51, #51DA5B

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#F9FBFE
Lighter +30%#CFDFF5
Lighter +20%#A5C4EC
Lighter +10%#7BA8E3
Darker −10%#2B71CD
Darker −20%#235AA2
Darker −30%#1A4278
Darker −40%#112B4E
More saturated +25%#3788F4
Less saturated −25%#6B90C0

Channel breakdown

R81
G140
B218
Red81 (31.8%)
Green140 (54.9%)
Blue218 (85.5%)
Hue214.16°
Saturation (HSL)64.93%
Lightness58.63%
Dominant channelBlue
Hex per channelR 51 · G 8C · B DA

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Every value on this page was computed from “518cda” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.