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Recognised as Colour

#518EA3

  • #518EA3
  • Cyan
  • Dark
  • Nearest: Cadetblue

#518EA3 is a cyan with RGB values 81, 142, 163 and HSL 195°, 34%, 48%. It is a dark colour, so black text on it reaches 5.7:1 contrast (AA for normal text). The nearest named colour is Cadetblue.

Colour values

#518EA3#518EA3
HEX#518EA3
RGBrgb(81, 142, 163)
RGB (0–1)0.3176, 0.5569, 0.6392
RGB percentages31.8%, 55.7%, 63.9%
HSLhsl(195.4, 33.6%, 47.8%)
HSV / HSBhsv(195.4, 50.3%, 63.9%)
CMYK50.3%, 12.9%, 0%, 36.1%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer5,344,931
CSS custom property--colour: #518EA3;

Brightness & contrast

Relative luminance0.2374WCAG 2.x, 0 is black and 1 is white
Perceived brightness129.7 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 5.75:1
Contrast with white3.65:1WCAG normal text: Fail
Contrast with black5.75:1WCAG normal text: AA
Greyscale equivalent#838383
Inverted#AE715C

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#828BA4no red cones; affects about 1% of men; ΔE 16.5 from the original
Deuteranopia#7682A3no green cones; the most common form, about 1% of men; ΔE 17.3 from the original
Tritanopia#239595no blue cones; rare, and affects men and women equally; ΔE 18.1 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text3.65:1WCAG large text: AA
Contrast with black, large text5.75:1WCAG large text: AAA

Named colours

Cadetblue · ΔE 12.6Light slate grey · ΔE 13.1Slate grey · ΔE 13.8Steel blue · ΔE 18.2Teal · ΔE 19Dark cyan · ΔE 19.1
Nearest named CSS colourCadetblue (#5F9EA0)ΔE 12.59, a distinctly different colour
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#A36651
Analogous#51A38F, #5165A3
Triadic#A3518E, #8EA351
Split complementary#A35165, #A38F51
Tetradic#8F51A3, #A36651, #65A351

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#D6E5EA
Lighter +30%#B4D0D9
Lighter +20%#91BAC9
Lighter +10%#6FA5B8
Darker −10%#407081
Darker −20%#2F535F
Darker −30%#1E353D
Darker −40%#0D171B
More saturated +25%#339DC1
Less saturated −25%#6F7F84

Channel breakdown

R81
G142
B163
Red81 (31.8%)
Green142 (55.7%)
Blue163 (63.9%)
Hue195.37°
Saturation (HSL)33.61%
Lightness47.84%
Dominant channelBlue
Hex per channelR 51 · G 8E · B A3

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Every value on this page was computed from “518ea3” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.