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Recognised as Colour

#537AD2

  • #537AD2
  • Blue
  • Dark
  • Nearest: Cornflower blue

#537AD2 is a blue with RGB values 83, 122, 210 and HSL 222°, 59%, 57%. It is a dark colour, so black text on it reaches 5.1:1 contrast (AA for normal text). The nearest named colour is Cornflower blue.

Colour values

#537AD2#537AD2
HEX#537AD2
RGBrgb(83, 122, 210)
RGB (0–1)0.3255, 0.4784, 0.8235
RGB percentages32.5%, 47.8%, 82.4%
HSLhsl(221.6, 58.5%, 57.5%)
HSV / HSBhsv(221.6, 60.5%, 82.4%)
CMYK60.5%, 41.9%, 0%, 17.6%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer5,470,930
CSS custom property--colour: #537AD2;

Brightness & contrast

Relative luminance0.20411WCAG 2.x, 0 is black and 1 is white
Perceived brightness125.8 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 5.08:1
Contrast with white4.13:1WCAG normal text: Fail
Contrast with black5.08:1WCAG normal text: AA
Greyscale equivalent#787878
Inverted#AC852D

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#5383D5no red cones; affects about 1% of men; ΔE 5.8 from the original
Deuteranopia#4177D0no green cones; the most common form, about 1% of men; ΔE 3.1 from the original
Tritanopia#008E9Cno blue cones; rare, and affects men and women equally; ΔE 51.8 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text4.13:1WCAG large text: AA
Contrast with black, large text5.08:1WCAG large text: AAA

Named colours

Cornflower blue · ΔE 10.4Dodgerblue · ΔE 15.9Royal blue · ΔE 20.8Medium purple · ΔE 23.6Steel blue · ΔE 24.6Slate blue · ΔE 25.1
Nearest named CSS colourCornflower blue (#6495ED)ΔE 10.43, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#D2AB53
Analogous#53BAD2, #6B53D2
Triadic#D2537A, #7AD253
Split complementary#D26B53, #BAD253
Tetradic#D253BA, #D2AB53, #53D26B

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#F5F7FC
Lighter +30%#CCD8F2
Lighter +20%#A4B9E7
Lighter +10%#7B99DD
Darker −10%#325EC0
Darker −20%#284A97
Darker −30%#1D366F
Darker −40%#122247
More saturated +25%#3870ED
Less saturated −25%#6E84B7

Channel breakdown

R83
G122
B210
Red83 (32.5%)
Green122 (47.8%)
Blue210 (82.4%)
Hue221.57°
Saturation (HSL)58.53%
Lightness57.45%
Dominant channelBlue
Hex per channelR 53 · G 7A · B D2

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Every value on this page was computed from “537ad2” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.