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Colour

#2F3B55

  • #2F3B55
  • Blue
  • Dark
  • Nearest: Dark slate grey

#2F3B55 is a blue with RGB values 47, 59, 85 and HSL 221°, 29%, 26%. It is a dark colour, so white text on it reaches 11.2:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.

Colour values

#2F3B55#2F3B55
HEX#2F3B55
RGBrgb(47, 59, 85)
RGB (0–1)0.1843, 0.2314, 0.3333
RGB percentages18.4%, 23.1%, 33.3%
HSLhsl(221.1, 28.8%, 25.9%)
HSV / HSBhsv(221.1, 44.7%, 33.3%)
CMYK44.7%, 30.6%, 0%, 66.7%naive device-independent conversion; real print needs an ICC profile
24-bit integer3,095,381
CSS custom property--colour: #2F3B55;

Brightness & contrast

Relative luminance0.04388WCAG 2.x, 0 is black and 1 is white
Perceived brightness59.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 11.18:1
Contrast with white11.18:1WCAG normal text: AAA
Contrast with black1.88:1WCAG normal text: Fail
Greyscale equivalent#3A3A3A
Inverted#D0C4AA

Colour vision & accessibility

Protanopia#323D56no red cones; affects about 1% of men; ΔE 1.2 from the original
Deuteranopia#2E3A54no green cones; the most common form, about 1% of men; ΔE 0.4 from the original
Tritanopia#224044no blue cones; rare, and affects men and women equally; ΔE 17.1 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text11.18:1WCAG large text: AAA
Contrast with black, large text1.88:1WCAG large text: Fail

Named colours

Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 20.86, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

Complementary#55492F
Analogous#2F4E55, #362F55
Triadic#552F3B, #3B552F
Split complementary#55362F, #4E552F
Tetradic#552F4E, #55492F, #2F5536

Tints, shades & saturation

Lighter +40%#8F9FC1
Lighter +30%#6E83AF
Lighter +20%#536997
Lighter +10%#415276
Darker −10%#1D2434
Darker −20%#0B0D13
Darker −30%#000000
Darker −40%#000000
More saturated +25%#1E3565
Less saturated −25%#3F4144

Channel breakdown

R47
G59
B85
Red47 (18.4%)
Green59 (23.1%)
Blue85 (33.3%)
Hue221.05°
Saturation (HSL)28.79%
Lightness25.88%
Dominant channelBlue
Hex per channelR 2F · G 3B · B 55

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Every value on this page was computed from “2f3b55” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.