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Recognised as Colour

#2D3078

  • #2D3078
  • Blue
  • Dark
  • Nearest: Dark slateblue

#2D3078 is a blue with RGB values 45, 48, 120 and HSL 238°, 45%, 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

#2D3078#2D3078
HEX#2D3078
RGBrgb(45, 48, 120)
RGB (0–1)0.1765, 0.1882, 0.4706
RGB percentages17.6%, 18.8%, 47.1%
HSLhsl(237.6, 45.5%, 32.4%)
HSV / HSBhsv(237.6, 62.5%, 47.1%)
CMYK62.5%, 60%, 0%, 52.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,961,528
CSS custom property--colour: #2D3078;

Brightness & contrast

Relative luminance0.04028WCAG 2.x, 0 is black and 1 is white
Perceived brightness60 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 11.63:1
Contrast with white11.63:1WCAG normal text: AAA
Contrast with black1.81:1WCAG normal text: Fail
Greyscale equivalent#353535
Inverted#D2CF87

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#003C7Ano red cones; affects about 1% of men; ΔE 13.3 from the original
Deuteranopia#003577no green cones; the most common form, about 1% of men; ΔE 9.4 from the original
Tritanopia#00414Fno blue cones; rare, and affects men and women equally; ΔE 44.9 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text11.63:1WCAG large text: AAA
Contrast with black, large text1.81:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 8Midnight blue · ΔE 14.6Rebecca purple · ΔE 23.1Slate blue · ΔE 30.2Indigo · ΔE 31.7Royal blue · ΔE 33.9
Nearest named CSS colourDark slateblue (#483D8B)ΔE 7.99, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#78752D
Analogous#2D5578, #4F2D78
Triadic#782D30, #30782D
Split complementary#78502D, #55782D
Tetradic#782D56, #78752D, #2D7850

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#989BD9
Lighter +30%#7377CB
Lighter +20%#4E53BD
Lighter +10%#3B3F9D
Darker −10%#1F2153
Darker −20%#11122E
Darker −30%#030309
Darker −40%#000000
More saturated +25%#181D8D
Less saturated −25%#424363

Channel breakdown

R45
G48
B120
Red45 (17.6%)
Green48 (18.8%)
Blue120 (47.1%)
Hue237.6°
Saturation (HSL)45.45%
Lightness32.35%
Dominant channelBlue
Hex per channelR 2D · G 30 · B 78

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Every value on this page was computed from “2d3078” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.