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Recognised as Colour

#505D7B

  • #505D7B
  • Blue
  • Dark
  • Nearest: Slate grey

#505D7B is a blue with RGB values 80, 93, 123 and HSL 222°, 21%, 40%. It is a dark colour, so white text on it reaches 6.6:1 contrast (AA for normal text). The nearest named colour is Slate grey.

Colour values

#505D7B#505D7B
HEX#505D7B
RGBrgb(80, 93, 123)
RGB (0–1)0.3137, 0.3647, 0.4824
RGB percentages31.4%, 36.5%, 48.2%
HSLhsl(221.9, 21.2%, 39.8%)
HSV / HSBhsv(221.9, 35%, 48.2%)
CMYK35%, 24.4%, 0%, 51.8%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer5,266,811
CSS custom property--colour: #505D7B;

Brightness & contrast

Relative luminance0.10964WCAG 2.x, 0 is black and 1 is white
Perceived brightness93.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 6.58:1
Contrast with white6.58:1WCAG normal text: AA
Contrast with black3.19:1WCAG normal text: Fail
Greyscale equivalent#5C5C5C
Inverted#AFA284

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#535F7Cno red cones; affects about 1% of men; ΔE 1.1 from the original
Deuteranopia#4F5B7Ano green cones; the most common form, about 1% of men; ΔE 1.1 from the original
Tritanopia#436367no blue cones; rare, and affects men and women equally; ΔE 18.3 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text6.58:1WCAG large text: AAA
Contrast with black, large text3.19:1WCAG large text: AA

Named colours

Slate grey · ΔE 16.3Light slate grey · ΔE 18.7Dim grey · ΔE 19.3Steel blue · ΔE 20.1Dark slate grey · ΔE 22.3Gray · ΔE 23.4
Nearest named CSS colourSlate grey (#708090)ΔE 16.28, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#7B6E50
Analogous#50727B, #59507B
Triadic#7B505D, #5D7B50
Split complementary#7B5950, #727B50
Tetradic#7B5072, #7B6E50, #507B59

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#C1C7D6
Lighter +30%#A2ACC2
Lighter +20%#8390AE
Lighter +10%#64749A
Darker −10%#3C465C
Darker −20%#282E3D
Darker −30%#14171E
Darker −40%#000000
More saturated +25%#375394
Less saturated −25%#666666

Channel breakdown

R80
G93
B123
Red80 (31.4%)
Green93 (36.5%)
Blue123 (48.2%)
Hue221.86°
Saturation (HSL)21.18%
Lightness39.8%
Dominant channelBlue
Hex per channelR 50 · G 5D · B 7B

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Every value on this page was computed from “505d7b” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.