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Recognised as Colour

#37393E

  • #37393E
  • Grey
  • Dark
  • Nearest: Dark slate grey

#37393E is a grey with RGB values 55, 57, 62 and HSL 223°, 6%, 23%. It is a dark colour, so white text on it reaches 11.6:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.

Colour values

#37393E#37393E
HEX#37393E
RGBrgb(55, 57, 62)
RGB (0–1)0.2157, 0.2235, 0.2431
RGB percentages21.6%, 22.4%, 24.3%
HSLhsl(222.9, 6%, 22.9%)
HSV / HSBhsv(222.9, 11.3%, 24.3%)
CMYK11.3%, 8.1%, 0%, 75.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,619,134
CSS custom property--colour: #37393E;

Brightness & contrast

Relative luminance0.04086WCAG 2.x, 0 is black and 1 is white
Perceived brightness57 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 11.56:1
Contrast with white11.56:1WCAG normal text: AAA
Contrast with black1.82:1WCAG normal text: Fail
Greyscale equivalent#393939
Inverted#C8C6C1

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#38393Eno red cones; affects about 1% of men; ΔE 0.4 from the original
Deuteranopia#37393Eno green cones; the most common form, about 1% of men; ΔE 0 from the original
Tritanopia#353A3Bno blue cones; rare, and affects men and women equally; ΔE 3 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text11.56:1WCAG large text: AAA
Contrast with black, large text1.82:1WCAG large text: Fail

Named colours

Dark slate grey · ΔE 14.1Dim grey · ΔE 20.7Black · ΔE 24.2Gray · ΔE 29.8Slate grey · ΔE 29.9Light slate grey · ΔE 33
Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 14.12, a distinctly different colour
Hue familygrey
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#3E3C37
Analogous#373D3E, #39373E
Triadic#3E3739, #393E37
Split complementary#3E3937, #3D3E37
Tetradic#3E373D, #3E3C37, #373E39

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#9B9EA6
Lighter +30%#80848E
Lighter +20%#676B74
Lighter +10%#4F5259
Darker −10%#1F2023
Darker −20%#070708
Darker −30%#000000
Darker −40%#000000
More saturated +25%#28334D
Less saturated −25%#3B3B3B

Channel breakdown

R55
G57
B62
Red55 (21.6%)
Green57 (22.4%)
Blue62 (24.3%)
Hue222.86°
Saturation (HSL)5.98%
Lightness22.94%
Dominant channelBlue
Hex per channelR 37 · G 39 · B 3E

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Every value on this page was computed from “37393e” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.