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Recognised as Colour

#2F4283

  • #2F4283
  • Blue
  • Dark
  • Nearest: Dark slateblue

#2F4283 is a blue with RGB values 47, 66, 131 and HSL 226°, 47%, 35%. It is a dark colour, so white text on it reaches 9.4:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#2F4283#2F4283
HEX#2F4283
RGBrgb(47, 66, 131)
RGB (0–1)0.1843, 0.2588, 0.5137
RGB percentages18.4%, 25.9%, 51.4%
HSLhsl(226.4, 47.2%, 34.9%)
HSV / HSBhsv(226.4, 64.1%, 51.4%)
CMYK64.1%, 49.6%, 0%, 48.6%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,097,219
CSS custom property--colour: #2F4283;

Brightness & contrast

Relative luminance0.06139WCAG 2.x, 0 is black and 1 is white
Perceived brightness71.9 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 9.43:1
Contrast with white9.43:1WCAG normal text: AAA
Contrast with black2.23:1WCAG normal text: Fail
Greyscale equivalent#434343
Inverted#D0BD7C

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#214A85no red cones; affects about 1% of men; ΔE 7.5 from the original
Deuteranopia#114382no green cones; the most common form, about 1% of men; ΔE 5.6 from the original
Tritanopia#00515Cno blue cones; rare, and affects men and women equally; ΔE 41 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text9.43:1WCAG large text: AAA
Contrast with black, large text2.23:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 12Midnight blue · ΔE 24.6Rebecca purple · ΔE 29.7Steel blue · ΔE 30.1Slate blue · ΔE 32.6Royal blue · ΔE 34
Nearest named CSS colourDark slateblue (#483D8B)ΔE 12.04, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#83702F
Analogous#2F6C83, #462F83
Triadic#832F42, #42832F
Split complementary#83462F, #6C832F
Tetradic#832F6C, #83702F, #2F8346

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#A1AEDD
Lighter +30%#7B8ED0
Lighter +20%#566EC2
Lighter +10%#3C55A9
Darker −10%#222F5D
Darker −20%#141C38
Darker −30%#070912
Darker −40%#000000
More saturated +25%#193699
Less saturated −25%#454E6D

Channel breakdown

R47
G66
B131
Red47 (18.4%)
Green66 (25.9%)
Blue131 (51.4%)
Hue226.43°
Saturation (HSL)47.19%
Lightness34.9%
Dominant channelBlue
Hex per channelR 2F · G 42 · B 83

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Every value on this page was computed from “2f4283” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.