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Colour

#2F4F4F

  • #2F4F4F
  • Cyan
  • Dark
  • Named: Dark slate grey

#2F4F4F is the CSS colour cyan with RGB values 47, 79, 79 and HSL 180°, 25%, 25%. It is a dark colour, so white text on it reaches 8.9:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.

Colour values

#2F4F4F#2F4F4F
HEX#2F4F4F
RGBrgb(47, 79, 79)
RGB (0–1)0.1843, 0.3098, 0.3098
RGB percentages18.4%, 31%, 31%
HSLhsl(180, 25.4%, 24.7%)
HSV / HSBhsv(180, 40.5%, 31%)
CMYK40.5%, 0%, 0%, 69%naive device-independent conversion; real print needs an ICC profile
24-bit integer3,100,495
CSS custom property--colour: #2F4F4F;

Brightness & contrast

Relative luminance0.06761WCAG 2.x, 0 is black and 1 is white
Perceived brightness71 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 8.93:1
Contrast with white8.93:1WCAG normal text: AAA
Contrast with black2.35:1WCAG normal text: Fail
Greyscale equivalent#484848
Inverted#D0B0B0

Colour vision & accessibility

Protanopia#4B4C4Fno red cones; affects about 1% of men; ΔE 12.2 from the original
Deuteranopia#45484Fno green cones; the most common form, about 1% of men; ΔE 12.2 from the original
Tritanopia#22514Fno blue cones; rare, and affects men and women equally; ΔE 4.7 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text8.93:1WCAG large text: AAA
Contrast with black, large text2.35:1WCAG large text: Fail

Named colours

This is a named CSS colourDark slate grey (#2F4F4F)exact match
Hue familycyan
CSS keyword usabledarkslategray

Colour harmonies

Complementary#4F2F2F
Analogous#2F4F3F, #2F3F4F
Triadic#4F2F4F, #4F4F2F
Split complementary#4F2F3F, #4F3F2F
Tetradic#3F2F4F, #4F2F2F, #3F4F2F

Tints, shades & saturation

Lighter +40%#8EBCBC
Lighter +30%#6EA9A9
Lighter +20%#558F8F
Lighter +10%#426F6F
Darker −10%#1C2F2F
Darker −20%#090F0F
Darker −30%#000000
Darker −40%#000000
More saturated +25%#1F5F5F
Less saturated −25%#3F3F3F

Channel breakdown

R47
G79
B79
Red47 (18.4%)
Green79 (31%)
Blue79 (31%)
Hue180°
Saturation (HSL)25.4%
Lightness24.71%
Dominant channelGreen and Blue
Hex per channelR 2F · G 4F · B 4F

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Every value on this page was computed from “2f4f4f” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.