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Recognised as Colour

#2F4282

  • #2F4282
  • Blue
  • Dark
  • Nearest: Dark slateblue

#2F4282 is a blue with RGB values 47, 66, 130 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

#2F4282#2F4282
HEX#2F4282
RGBrgb(47, 66, 130)
RGB (0–1)0.1843, 0.2588, 0.5098
RGB percentages18.4%, 25.9%, 51%
HSLhsl(226.3, 46.9%, 34.7%)
HSV / HSBhsv(226.3, 63.8%, 51%)
CMYK63.8%, 49.2%, 0%, 49%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,097,218
CSS custom property--colour: #2F4282;

Brightness & contrast

Relative luminance0.06112WCAG 2.x, 0 is black and 1 is white
Perceived brightness71.7 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 9.45:1
Contrast with white9.45:1WCAG normal text: AAA
Contrast with black2.22:1WCAG normal text: Fail
Greyscale equivalent#434343
Inverted#D0BD7D

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#224A84no red cones; affects about 1% of men; ΔE 7.4 from the original
Deuteranopia#134281no green cones; the most common form, about 1% of men; ΔE 5 from the original
Tritanopia#00515Bno blue cones; rare, and affects men and women equally; ΔE 41.1 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text9.45:1WCAG large text: AAA
Contrast with black, large text2.22:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 12.5Midnight blue · ΔE 25Steel blue · ΔE 29.8Rebecca purple · ΔE 30.2Slate blue · ΔE 33.2Cornflower blue · ΔE 34.3
Nearest named CSS colourDark slateblue (#483D8B)ΔE 12.55, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#826F2F
Analogous#2F6B82, #452F82
Triadic#822F42, #42822F
Split complementary#82462F, #6B822F
Tetradic#822F6C, #826F2F, #2F8246

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#A0AEDD
Lighter +30%#7B8ECF
Lighter +20%#556EC2
Lighter +10%#3D55A7
Darker −10%#212F5D
Darker −20%#141C37
Darker −30%#060912
Darker −40%#000000
More saturated +25%#193698
Less saturated −25%#454E6C

Channel breakdown

R47
G66
B130
Red47 (18.4%)
Green66 (25.9%)
Blue130 (51%)
Hue226.27°
Saturation (HSL)46.89%
Lightness34.71%
Dominant channelBlue
Hex per channelR 2F · G 42 · B 82

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Every value on this page was computed from “2f4282” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.