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Colour

#819FD4

  • #819FD4
  • Blue
  • Dark
  • Nearest: Steel blue

#819FD4 is a blue with RGB values 129, 159, 212 and HSL 218°, 49%, 67%. It is a dark colour, so black text on it reaches 7.8:1 contrast (AAA for normal text). The nearest named colour is Steel blue.

Colour values

#819FD4#819FD4
HEX#819FD4
RGBrgb(129, 159, 212)
RGB (0–1)0.5059, 0.6235, 0.8314
RGB percentages50.6%, 62.4%, 83.1%
HSLhsl(218.3, 49.1%, 66.9%)
HSV / HSBhsv(218.3, 39.2%, 83.1%)
CMYK39.2%, 25%, 0%, 16.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer8,495,060
CSS custom property--colour: #819FD4;

Brightness & contrast

Relative luminance0.34217WCAG 2.x, 0 is black and 1 is white
Perceived brightness157.9 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 7.84:1
Contrast with white2.68:1WCAG normal text: Fail
Contrast with black7.84:1WCAG normal text: AAA
Greyscale equivalent#9C9C9C
Inverted#7E602B

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#8CA2D6no red cones; affects about 1% of men; ΔE 2.8 from the original
Deuteranopia#849BD3no green cones; the most common form, about 1% of men; ΔE 3.1 from the original
Tritanopia#65AAB1no blue cones; rare, and affects men and women equally; ΔE 30.3 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text2.68:1WCAG large text: Fail
Contrast with black, large text7.84:1WCAG large text: AAA

Named colours

Steel blue · ΔE 14.6Light skyblue · ΔE 20.1Cornflower blue · ΔE 20.3Light steelblue · ΔE 20.6Light slate grey · ΔE 21.9Slate grey · ΔE 23.8
Nearest named CSS colourSteel blue (#4682B4)ΔE 14.57, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#D4B681
Analogous#81C8D4, #8D81D4
Triadic#D4819F, #9FD481
Split complementary#D48D81, #C8D481
Tetradic#D481C8, #D4B681, #81D48D

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FFFFFF
Lighter +30%#F3F6FB
Lighter +20%#CDD9EE
Lighter +10%#A7BCE1
Darker −10%#5B82C7
Darker −20%#3D67B2
Darker −30%#30518C
Darker −40%#233B66
More saturated +25%#6C99E9
Less saturated −25%#96A5BF

Channel breakdown

R129
G159
B212
Red129 (50.6%)
Green159 (62.4%)
Blue212 (83.1%)
Hue218.31°
Saturation (HSL)49.11%
Lightness66.86%
Dominant channelBlue
Hex per channelR 81 · G 9F · B D4

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Every value on this page was computed from “819fd4” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.