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Colour

#3F4854

  • #3F4854
  • Blue
  • Dark
  • Nearest: Dark slate grey

#3F4854 is a blue with RGB values 63, 72, 84 and HSL 214°, 14%, 29%. It is a dark colour, so white text on it reaches 9.3:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.

Colour values

#3F4854#3F4854
HEX#3F4854
RGBrgb(63, 72, 84)
RGB (0–1)0.2471, 0.2824, 0.3294
RGB percentages24.7%, 28.2%, 32.9%
HSLhsl(214.3, 14.3%, 28.8%)
HSV / HSBhsv(214.3, 25%, 32.9%)
CMYK25%, 14.3%, 0%, 67.1%naive device-independent conversion; real print needs an ICC profile
24-bit integer4,147,284
CSS custom property--colour: #3F4854;

Brightness & contrast

Relative luminance0.06332WCAG 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 9.27:1
Contrast with white9.27:1WCAG normal text: AAA
Contrast with black2.27:1WCAG normal text: Fail
Greyscale equivalent#474747
Inverted#C0B7AB

Colour vision & accessibility

Protanopia#444855no red cones; affects about 1% of men; ΔE 2.2 from the original
Deuteranopia#424654no green cones; the most common form, about 1% of men; ΔE 2.5 from the original
Tritanopia#394B4Cno blue cones; rare, and affects men and women equally; ΔE 8.2 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text9.27:1WCAG large text: AAA
Contrast with black, large text2.27:1WCAG large text: Fail

Named colours

Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 12.12, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

Complementary#544B3F
Analogous#3F5254, #413F54
Triadic#543F48, #48543F
Split complementary#54413F, #52543F
Tetradic#543F52, #544B3F, #3F5441

Tints, shades & saturation

Lighter +40%#A4AEBB
Lighter +30%#8794A5
Lighter +20%#6B7A8E
Lighter +10%#556171
Darker −10%#292F37
Darker −20%#13161A
Darker −30%#000000
Darker −40%#000000
More saturated +25%#2D4566
Less saturated −25%#4A4A4A

Channel breakdown

R63
G72
B84
Red63 (24.7%)
Green72 (28.2%)
Blue84 (32.9%)
Hue214.29°
Saturation (HSL)14.29%
Lightness28.82%
Dominant channelBlue
Hex per channelR 3F · G 48 · B 54

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Every value on this page was computed from “3f4854” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.