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Recognised as Colour

#2D4182

  • #2D4182
  • Blue
  • Dark
  • Nearest: Dark slateblue

#2D4182 is a blue with RGB values 45, 65, 130 and HSL 226°, 49%, 34%. It is a dark colour, so white text on it reaches 9.6:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#2D4182#2D4182
HEX#2D4182
RGBrgb(45, 65, 130)
RGB (0–1)0.1765, 0.2549, 0.5098
RGB percentages17.6%, 25.5%, 51%
HSLhsl(225.9, 48.6%, 34.3%)
HSV / HSBhsv(225.9, 65.4%, 51%)
CMYK65.4%, 50%, 0%, 49%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,965,890
CSS custom property--colour: #2D4182;

Brightness & contrast

Relative luminance0.0595WCAG 2.x, 0 is black and 1 is white
Perceived brightness70.8 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 9.59:1
Contrast with white9.59:1WCAG normal text: AAA
Contrast with black2.19:1WCAG normal text: Fail
Greyscale equivalent#414141
Inverted#D2BE7D

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#1F4984no red cones; affects about 1% of men; ΔE 7.5 from the original
Deuteranopia#0E4181no green cones; the most common form, about 1% of men; ΔE 5 from the original
Tritanopia#00505Bno 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 text9.59:1WCAG large text: AAA
Contrast with black, large text2.19:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 12.1Midnight blue · ΔE 24.3Rebecca purple · ΔE 29.8Steel blue · ΔE 30.4Slate blue · ΔE 32.8Royal blue · ΔE 34.2
Nearest named CSS colourDark slateblue (#483D8B)ΔE 12.13, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#826E2D
Analogous#2D6C82, #442D82
Triadic#822D41, #41822D
Split complementary#82442D, #6C822D
Tetradic#822D6C, #826E2D, #2D8244

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#9EADDD
Lighter +30%#788DD0
Lighter +20%#526DC3
Lighter +10%#3A54A8
Darker −10%#202E5C
Darker −20%#131B36
Darker −30%#060810
Darker −40%#000000
More saturated +25%#173598
Less saturated −25%#434D6C

Channel breakdown

R45
G65
B130
Red45 (17.6%)
Green65 (25.5%)
Blue130 (51%)
Hue225.88°
Saturation (HSL)48.57%
Lightness34.31%
Dominant channelBlue
Hex per channelR 2D · G 41 · B 82

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Every value on this page was computed from “2d4182” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.