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Colour

#537CC5

  • #537CC5
  • Blue
  • Dark
  • Nearest: Cornflower blue

#537CC5 is a blue with RGB values 83, 124, 197 and HSL 218°, 50%, 55%. 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

#537CC5#537CC5
HEX#537CC5
RGBrgb(83, 124, 197)
RGB (0–1)0.3255, 0.4863, 0.7725
RGB percentages32.5%, 48.6%, 77.3%
HSLhsl(218.4, 49.6%, 54.9%)
HSV / HSBhsv(218.4, 57.9%, 77.3%)
CMYK57.9%, 37.1%, 0%, 22.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer5,471,429
CSS custom property--colour: #537CC5;

Brightness & contrast

Relative luminance0.20286WCAG 2.x, 0 is black and 1 is white
Perceived brightness124.5 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 5.06:1
Contrast with white4.15:1WCAG normal text: Fail
Contrast with black5.06:1WCAG normal text: AA
Greyscale equivalent#797979
Inverted#AC833A

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#5E82C8no red cones; affects about 1% of men; ΔE 3.2 from the original
Deuteranopia#4F78C3no green cones; the most common form, about 1% of men; ΔE 2.1 from the original
Tritanopia#008C97no blue cones; rare, and affects men and women equally; ΔE 44.5 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text4.15:1WCAG large text: AA
Contrast with black, large text5.06:1WCAG large text: AAA

Named colours

Cornflower blue · ΔE 12.1Steel blue · ΔE 15.6Dodgerblue · ΔE 22.3Dark slateblue · ΔE 28.1Royal blue · ΔE 29.7Medium purple · ΔE 30.2
Nearest named CSS colourCornflower blue (#6495ED)ΔE 12.08, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#C59C53
Analogous#53B5C5, #6353C5
Triadic#C5537C, #7CC553
Split complementary#C56353, #B5C553
Tetradic#C553B5, #C59C53, #53C563

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#ECF0F8
Lighter +30%#C5D3EC
Lighter +20%#9FB6DF
Lighter +10%#7999D2
Darker −10%#3A63AB
Darker −20%#2D4D85
Darker −30%#20375F
Darker −40%#132139
More saturated +25%#3674E2
Less saturated −25%#7084A8

Channel breakdown

R83
G124
B197
Red83 (32.5%)
Green124 (48.6%)
Blue197 (77.3%)
Hue218.42°
Saturation (HSL)49.57%
Lightness54.9%
Dominant channelBlue
Hex per channelR 53 · G 7C · B C5

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Every value on this page was computed from “537cc5” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.