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Colour

#2B3674

  • #2B3674
  • Blue
  • Dark
  • Nearest: Dark slateblue

#2B3674 is a blue with RGB values 43, 54, 116 and HSL 231°, 46%, 31%. 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

#2B3674#2B3674
HEX#2B3674
RGBrgb(43, 54, 116)
RGB (0–1)0.1686, 0.2118, 0.4549
RGB percentages16.9%, 21.2%, 45.5%
HSLhsl(231, 45.9%, 31.2%)
HSV / HSBhsv(231, 62.9%, 45.5%)
CMYK62.9%, 53.4%, 0%, 54.5%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,831,988
CSS custom property--colour: #2B3674;

Brightness & contrast

Relative luminance0.04413WCAG 2.x, 0 is black and 1 is white
Perceived brightness61.6 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 11.15:1
Contrast with white11.15:1WCAG normal text: AAA
Contrast with black1.88:1WCAG normal text: Fail
Greyscale equivalent#383838
Inverted#D4C98B

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#133F76no red cones; affects about 1% of men; ΔE 9.6 from the original
Deuteranopia#033873no green cones; the most common form, about 1% of men; ΔE 7.2 from the original
Tritanopia#00444Fno blue cones; rare, and affects men and women equally; ΔE 39.8 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text11.15:1WCAG large text: AAA
Contrast with black, large text1.88:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 12.4Midnight blue · ΔE 21.8Rebecca purple · ΔE 29.4Steel blue · ΔE 34.6Slate blue · ΔE 35Royal blue · ΔE 37.5
Nearest named CSS colourDark slateblue (#483D8B)ΔE 12.35, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#74692B
Analogous#2B5A74, #452B74
Triadic#742B36, #36742B
Split complementary#74452B, #5A742B
Tetradic#742B5A, #74692B, #2B7445

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#949ED7
Lighter +30%#6F7CC9
Lighter +20%#495BBC
Lighter +10%#394799
Darker −10%#1D254F
Darker −20%#0F132A
Darker −30%#020204
Darker −40%#000000
More saturated +25%#172888
Less saturated −25%#3F4460

Channel breakdown

R43
G54
B116
Red43 (16.9%)
Green54 (21.2%)
Blue116 (45.5%)
Hue230.96°
Saturation (HSL)45.91%
Lightness31.18%
Dominant channelBlue
Hex per channelR 2B · G 36 · B 74

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Every value on this page was computed from “2b3674” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.