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Recognised as Colour

#5185AD

  • #5185AD
  • Blue
  • Dark
  • Nearest: Steel blue

#5185AD is a blue with RGB values 81, 133, 173 and HSL 206°, 36%, 50%. It is a dark colour, so black text on it reaches 5.3:1 contrast (AA for normal text). The nearest named colour is Steel blue.

Colour values

#5185AD#5185AD
HEX#5185AD
RGBrgb(81, 133, 173)
RGB (0–1)0.3176, 0.5216, 0.6784
RGB percentages31.8%, 52.2%, 67.8%
HSLhsl(206.1, 36.2%, 49.8%)
HSV / HSBhsv(206.1, 53.2%, 67.8%)
CMYK53.2%, 23.1%, 0%, 32.2%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer5,342,637
CSS custom property--colour: #5185AD;

Brightness & contrast

Relative luminance0.21542WCAG 2.x, 0 is black and 1 is white
Perceived brightness125.5 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 5.31:1
Contrast with white3.96:1WCAG normal text: Fail
Contrast with black5.31:1WCAG normal text: AA
Greyscale equivalent#7D7D7D
Inverted#AE7A52

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#7485AFno red cones; affects about 1% of men; ΔE 10.4 from the original
Deuteranopia#677CACno green cones; the most common form, about 1% of men; ΔE 10.8 from the original
Tritanopia#1A8F92no blue cones; rare, and affects men and women equally; ΔE 28.1 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text3.96:1WCAG large text: AA
Contrast with black, large text5.31:1WCAG large text: AAA

Named colours

Steel blue · ΔE 6.1Light slate grey · ΔE 15.9Slate grey · ΔE 16.3Cadetblue · ΔE 24.8Light skyblue · ΔE 26.8Gray · ΔE 27.1
Nearest named CSS colourSteel blue (#4682B4)ΔE 6.06, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#AD7951
Analogous#51ADA7, #5157AD
Triadic#AD5185, #85AD51
Split complementary#AD5157, #ADA751
Tetradic#A751AD, #AD7951, #57AD51

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#DCE6EE
Lighter +30%#B9CEDE
Lighter +20%#96B6CE
Lighter +10%#739DBE
Darker −10%#416A8A
Darker −20%#305068
Darker −30%#203545
Darker −40%#101A22
More saturated +25%#3189CD
Less saturated −25%#71818D

Channel breakdown

R81
G133
B173
Red81 (31.8%)
Green133 (52.2%)
Blue173 (67.8%)
Hue206.09°
Saturation (HSL)36.22%
Lightness49.8%
Dominant channelBlue
Hex per channelR 51 · G 85 · B AD

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Every value on this page was computed from “5185ad” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.