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Recognised as Colour

#2F374D

  • #2F374D
  • Blue
  • Dark
  • Nearest: Dark slate grey

#2F374D is a blue with RGB values 47, 55, 77 and HSL 224°, 24%, 24%. It is a dark colour, so white text on it reaches 11.8:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.

Colour values

#2F374D#2F374D
HEX#2F374D
RGBrgb(47, 55, 77)
RGB (0–1)0.1843, 0.2157, 0.302
RGB percentages18.4%, 21.6%, 30.2%
HSLhsl(224, 24.2%, 24.3%)
HSV / HSBhsv(224, 39%, 30.2%)
CMYK39%, 28.6%, 0%, 69.8%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,094,349
CSS custom property--colour: #2F374D;

Brightness & contrast

Relative luminance0.03873WCAG 2.x, 0 is black and 1 is white
Perceived brightness55.8 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 11.83:1
Contrast with white11.83:1WCAG normal text: AAA
Contrast with black1.77:1WCAG normal text: Fail
Greyscale equivalent#373737
Inverted#D0C8B2

Colour vision & accessibility

Protanopia#30394Eno red cones; affects about 1% of men; ΔE 1.2 from the original
Deuteranopia#2D364Cno green cones; the most common form, about 1% of men; ΔE 0.6 from the original
Tritanopia#263B3Fno blue cones; rare, and affects men and women equally; ΔE 13.8 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text11.83:1WCAG large text: AAA
Contrast with black, large text1.77:1WCAG large text: Fail

Named colours

Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 19.93, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

Complementary#4D452F
Analogous#2F464D, #362F4D
Triadic#4D2F37, #374D2F
Split complementary#4D362F, #464D2F
Tetradic#4D2F46, #4D452F, #2F4D36

Tints, shades & saturation

Lighter +40%#8E9ABA
Lighter +30%#6E7DA7
Lighter +20%#56648C
Lighter +10%#424E6D
Darker −10%#1C202D
Darker −20%#080A0E
Darker −30%#000000
Darker −40%#000000
More saturated +25%#1F305D
Less saturated −25%#3E3E3E

Channel breakdown

R47
G55
B77
Red47 (18.4%)
Green55 (21.6%)
Blue77 (30.2%)
Hue224°
Saturation (HSL)24.19%
Lightness24.31%
Dominant channelBlue
Hex per channelR 2F · G 37 · B 4D

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Every value on this page was computed from “2f374d” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.