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Recognised as Colour

#2D3175

  • #2D3175
  • Blue
  • Dark
  • Nearest: Dark slateblue

#2D3175 is a blue with RGB values 45, 49, 117 and HSL 237°, 44%, 32%. It is a dark colour, so white text on it reaches 11.6:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#2D3175#2D3175
HEX#2D3175
RGBrgb(45, 49, 117)
RGB (0–1)0.1765, 0.1922, 0.4588
RGB percentages17.6%, 19.2%, 45.9%
HSLhsl(236.7, 44.4%, 31.8%)
HSV / HSBhsv(236.7, 61.5%, 45.9%)
CMYK61.5%, 58.1%, 0%, 54.1%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,961,781
CSS custom property--colour: #2D3175;

Brightness & contrast

Relative luminance0.04039WCAG 2.x, 0 is black and 1 is white
Perceived brightness59.8 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 11.62:1
Contrast with white11.62:1WCAG normal text: AAA
Contrast with black1.81:1WCAG normal text: Fail
Greyscale equivalent#353535
Inverted#D2CE8A

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#003C77no red cones; affects about 1% of men; ΔE 12.8 from the original
Deuteranopia#003674no green cones; the most common form, about 1% of men; ΔE 9.6 from the original
Tritanopia#00414Eno blue cones; rare, and affects men and women equally; ΔE 42.9 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text11.62:1WCAG large text: AAA
Contrast with black, large text1.81:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 9.2Midnight blue · ΔE 16.9Rebecca purple · ΔE 25.2Slate blue · ΔE 32.1Indigo · ΔE 34.1Royal blue · ΔE 35.5
Nearest named CSS colourDark slateblue (#483D8B)ΔE 9.22, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#75712D
Analogous#2D5575, #4D2D75
Triadic#752D31, #31752D
Split complementary#754D2D, #55752D
Tetradic#752D55, #75712D, #2D754D

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#979BD7
Lighter +30%#7277C9
Lighter +20%#4D53BB
Lighter +10%#3B409A
Darker −10%#1F2250
Darker −20%#11122B
Darker −30%#020306
Darker −40%#000000
More saturated +25%#191F89
Less saturated −25%#414361

Channel breakdown

R45
G49
B117
Red45 (17.6%)
Green49 (19.2%)
Blue117 (45.9%)
Hue236.67°
Saturation (HSL)44.44%
Lightness31.76%
Dominant channelBlue
Hex per channelR 2D · G 31 · B 75

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Every value on this page was computed from “2d3175” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.