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Recognised as Colour

#2F3769

  • #2F3769
  • Blue
  • Dark
  • Nearest: Dark slateblue

#2F3769 is a blue with RGB values 47, 55, 105 and HSL 232°, 38%, 30%. 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 slateblue.

Colour values

#2F3769#2F3769
HEX#2F3769
RGBrgb(47, 55, 105)
RGB (0–1)0.1843, 0.2157, 0.4118
RGB percentages18.4%, 21.6%, 41.2%
HSLhsl(231.7, 38.2%, 29.8%)
HSV / HSBhsv(231.7, 55.2%, 41.2%)
CMYK55.2%, 47.6%, 0%, 58.8%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,094,377
CSS custom property--colour: #2F3769;

Brightness & contrast

Relative luminance0.04357WCAG 2.x, 0 is black and 1 is white
Perceived brightness60.8 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 11.22:1
Contrast with white11.22:1WCAG normal text: AAA
Contrast with black1.87:1WCAG normal text: Fail
Greyscale equivalent#393939
Inverted#D0C896

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#223D6Bno red cones; affects about 1% of men; ΔE 6.4 from the original
Deuteranopia#1B3968no green cones; the most common form, about 1% of men; ΔE 6.1 from the original
Tritanopia#15424Bno blue cones; rare, and affects men and women equally; ΔE 31.8 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text11.22:1WCAG large text: AAA
Contrast with black, large text1.87:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 18.9Midnight blue · ΔE 28.6Steel blue · ΔE 32.3Rebecca purple · ΔE 35.6Dark slate grey · ΔE 36.6Slate grey · ΔE 37.3
Nearest named CSS colourDark slateblue (#483D8B)ΔE 18.86, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#69612F
Analogous#2F5469, #442F69
Triadic#692F37, #37692F
Split complementary#69442F, #54692F
Tetradic#692F54, #69612F, #2F6944

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#959DCF
Lighter +30%#717CC0
Lighter +20%#4F5CAF
Lighter +10%#3F498C
Darker −10%#1F2546
Darker −20%#0F1223
Darker −30%#000000
Darker −40%#000000
More saturated +25%#1C297C
Less saturated −25%#424556

Channel breakdown

R47
G55
B105
Red47 (18.4%)
Green55 (21.6%)
Blue105 (41.2%)
Hue231.72°
Saturation (HSL)38.16%
Lightness29.8%
Dominant channelBlue
Hex per channelR 2F · G 37 · B 69

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Every value on this page was computed from “2f3769” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.