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Recognised as Colour

#555D64

  • #555D64
  • Blue
  • Dark
  • Nearest: Dim grey

#555D64 is a blue with RGB values 85, 93, 100 and HSL 208°, 8%, 36%. It is a dark colour, so white text on it reaches 6.7:1 contrast (AA for normal text). The nearest named colour is Dim grey.

Colour values

#555D64#555D64
HEX#555D64
RGBrgb(85, 93, 100)
RGB (0–1)0.3333, 0.3647, 0.3922
RGB percentages33.3%, 36.5%, 39.2%
HSLhsl(208, 8.1%, 36.3%)
HSV / HSBhsv(208, 15%, 39.2%)
CMYK15%, 7%, 0%, 60.8%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer5,594,468
CSS custom property--colour: #555D64;

Brightness & contrast

Relative luminance0.1068WCAG 2.x, 0 is black and 1 is white
Perceived brightness91.5 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 6.7:1
Contrast with white6.7:1WCAG normal text: AA
Contrast with black3.14:1WCAG normal text: Fail
Greyscale equivalent#5C5C5C
Inverted#AAA29B

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#5A5D64no red cones; affects about 1% of men; ΔE 2 from the original
Deuteranopia#585B64no green cones; the most common form, about 1% of men; ΔE 2.4 from the original
Tritanopia#515F5Fno blue cones; rare, and affects men and women equally; ΔE 5.1 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text6.7:1WCAG large text: AAA
Contrast with black, large text3.14:1WCAG large text: AA

Named colours

Dim grey · ΔE 7.5Dark slate grey · ΔE 12.9Slate grey · ΔE 14.9Gray · ΔE 15.5Light slate grey · ΔE 17.9Cadetblue · ΔE 28.7
Nearest named CSS colourDim grey (#696969)ΔE 7.53, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#645C55
Analogous#556464, #555664
Triadic#64555D, #5D6455
Split complementary#645556, #646455
Tetradic#645564, #645C55, #566455

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#BEC3C7
Lighter +30%#A2A9B0
Lighter +20%#869099
Lighter +10%#6C7780
Darker −10%#3E4348
Darker −20%#262A2D
Darker −30%#0F1011
Darker −40%#000000
More saturated +25%#3E5F7B
Less saturated −25%#5D5D5D

Channel breakdown

R85
G93
B100
Red85 (33.3%)
Green93 (36.5%)
Blue100 (39.2%)
Hue208°
Saturation (HSL)8.11%
Lightness36.27%
Dominant channelBlue
Hex per channelR 55 · G 5D · B 64

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Every value on this page was computed from “555d64” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.