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Recognised as Colour

#537FCA

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

#537FCA is a blue with RGB values 83, 127, 202 and HSL 218°, 53%, 56%. It is a dark colour, so black text on it reaches 5.3:1 contrast (AA for normal text). The nearest named colour is Cornflower blue.

Colour values

#537FCA#537FCA
HEX#537FCA
RGBrgb(83, 127, 202)
RGB (0–1)0.3255, 0.498, 0.7922
RGB percentages32.5%, 49.8%, 79.2%
HSLhsl(217.8, 52.9%, 55.9%)
HSV / HSBhsv(217.8, 58.9%, 79.2%)
CMYK58.9%, 37.1%, 0%, 20.8%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer5,472,202
CSS custom property--colour: #537FCA;

Brightness & contrast

Relative luminance0.21282WCAG 2.x, 0 is black and 1 is white
Perceived brightness127.2 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 5.26:1
Contrast with white4:1WCAG normal text: Fail
Contrast with black5.26:1WCAG normal text: AA
Greyscale equivalent#7B7B7B
Inverted#AC8035

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#5F85CDno red cones; affects about 1% of men; ΔE 3.3 from the original
Deuteranopia#507AC8no green cones; the most common form, about 1% of men; ΔE 2.8 from the original
Tritanopia#00909Bno blue cones; rare, and affects men and women equally; ΔE 45.5 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text4:1WCAG large text: AA
Contrast with black, large text5.26:1WCAG large text: AAA

Named colours

Cornflower blue · ΔE 10.6Steel blue · ΔE 16.3Dodgerblue · ΔE 21Dark slateblue · ΔE 29.1Royal blue · ΔE 29.2Medium purple · ΔE 30
Nearest named CSS colourCornflower blue (#6495ED)ΔE 10.58, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#CA9E53
Analogous#53BACA, #6353CA
Triadic#CA537F, #7FCA53
Split complementary#CA6353, #BACA53
Tetradic#CA53BA, #CA9E53, #53CA63

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#EFF3FA
Lighter +30%#C8D6EE
Lighter +20%#A1B9E2
Lighter +10%#7A9CD6
Darker −10%#3765B3
Darker −20%#2B4F8C
Darker −30%#1F3965
Darker −40%#13233E
More saturated +25%#3778E6
Less saturated −25%#6F86AE

Channel breakdown

R83
G127
B202
Red83 (32.5%)
Green127 (49.8%)
Blue202 (79.2%)
Hue217.82°
Saturation (HSL)52.89%
Lightness55.88%
Dominant channelBlue
Hex per channelR 53 · G 7F · B CA

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