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Recognised as Colour

#555F6A

  • #555F6A
  • Blue
  • Dark
  • Nearest: Dim grey

#555F6A is a blue with RGB values 85, 95, 106 and HSL 211°, 11%, 37%. It is a dark colour, so white text on it reaches 6.5:1 contrast (AA for normal text). The nearest named colour is Dim grey.

Colour values

#555F6A#555F6A
HEX#555F6A
RGBrgb(85, 95, 106)
RGB (0–1)0.3333, 0.3725, 0.4157
RGB percentages33.3%, 37.3%, 41.6%
HSLhsl(211.4, 11%, 37.5%)
HSV / HSBhsv(211.4, 19.8%, 41.6%)
CMYK19.8%, 10.4%, 0%, 58.4%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer5,594,986
CSS custom property--colour: #555F6A;

Brightness & contrast

Relative luminance0.11156WCAG 2.x, 0 is black and 1 is white
Perceived brightness93.5 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 6.5:1
Contrast with white6.5:1WCAG normal text: AA
Contrast with black3.23:1WCAG normal text: Fail
Greyscale equivalent#5E5E5E
Inverted#AAA095

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#5B5F6Bno red cones; affects about 1% of men; ΔE 2.5 from the original
Deuteranopia#595D6Ano green cones; the most common form, about 1% of men; ΔE 2.7 from the original
Tritanopia#506162no blue cones; rare, and affects men and women equally; ΔE 6.9 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text6.5:1WCAG large text: AAA
Contrast with black, large text3.23:1WCAG large text: AA

Named colours

Dim grey · ΔE 8.9Slate grey · ΔE 13.4Dark slate grey · ΔE 14.1Gray · ΔE 15.7Light slate grey · ΔE 16.5Steel blue · ΔE 27.8
Nearest named CSS colourDim grey (#696969)ΔE 8.92, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#6A6055
Analogous#556A6A, #56556A
Triadic#6A555F, #5F6A55
Split complementary#6A5655, #6A6A55
Tetradic#6A556A, #6A6055, #556A56

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#BFC5CC
Lighter +30%#A3ACB5
Lighter +20%#87929E
Lighter +10%#6C7886
Darker −10%#3E464E
Darker −20%#282C31
Darker −30%#111315
Darker −40%#000000
More saturated +25%#3D5E82
Less saturated −25%#606060

Channel breakdown

R85
G95
B106
Red85 (33.3%)
Green95 (37.3%)
Blue106 (41.6%)
Hue211.43°
Saturation (HSL)10.99%
Lightness37.45%
Dominant channelBlue
Hex per channelR 55 · G 5F · B 6A

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Every value on this page was computed from “555f6a” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.