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Recognised as Colour

#516EA8

  • #516EA8
  • Blue
  • Dark
  • Nearest: Steel blue

#516EA8 is a blue with RGB values 81, 110, 168 and HSL 220°, 35%, 49%. It is a dark colour, so white text on it reaches 5.1:1 contrast (AA for normal text). The nearest named colour is Steel blue.

Colour values

#516EA8#516EA8
HEX#516EA8
RGBrgb(81, 110, 168)
RGB (0–1)0.3176, 0.4314, 0.6588
RGB percentages31.8%, 43.1%, 65.9%
HSLhsl(220, 34.9%, 48.8%)
HSV / HSBhsv(220, 51.8%, 65.9%)
CMYK51.8%, 34.5%, 0%, 34.1%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer5,336,744
CSS custom property--colour: #516EA8;

Brightness & contrast

Relative luminance0.15728WCAG 2.x, 0 is black and 1 is white
Perceived brightness110.8 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 5.07:1
Contrast with white5.07:1WCAG normal text: AA
Contrast with black4.15:1WCAG normal text: Fail
Greyscale equivalent#6C6C6C
Inverted#AE9157

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#5773AAno red cones; affects about 1% of men; ΔE 2.8 from the original
Deuteranopia#4D6BA7no green cones; the most common form, about 1% of men; ΔE 1.8 from the original
Tritanopia#287B83no blue cones; rare, and affects men and women equally; ΔE 36.1 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text5.07:1WCAG large text: AAA
Contrast with black, large text4.15:1WCAG large text: AA

Named colours

Steel blue · ΔE 12.2Cornflower blue · ΔE 21.6Slate grey · ΔE 26Dark slateblue · ΔE 26.4Light slate grey · ΔE 26.5Dodgerblue · ΔE 31.9
Nearest named CSS colourSteel blue (#4682B4)ΔE 12.18, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#A88B51
Analogous#519AA8, #6051A8
Triadic#A8516E, #6EA851
Split complementary#A86051, #9AA851
Tetradic#A85199, #A88B51, #51A85F

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#D9DFEC
Lighter +30%#B6C3DC
Lighter +20%#94A6CB
Lighter +10%#718ABB
Darker −10%#405786
Darker −20%#304163
Darker −30%#1F2A41
Darker −40%#0F141E
More saturated +25%#3264C7
Less saturated −25%#707889

Channel breakdown

R81
G110
B168
Red81 (31.8%)
Green110 (43.1%)
Blue168 (65.9%)
Hue220°
Saturation (HSL)34.94%
Lightness48.82%
Dominant channelBlue
Hex per channelR 51 · G 6E · B A8

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Every value on this page was computed from “516ea8” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.