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Recognised as Colour

#2C4E89

  • #2C4E89
  • Blue
  • Dark
  • Nearest: Dark slateblue

#2C4E89 is a blue with RGB values 44, 78, 137 and HSL 218°, 51%, 35%. It is a dark colour, so white text on it reaches 8.2:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#2C4E89#2C4E89
HEX#2C4E89
RGBrgb(44, 78, 137)
RGB (0–1)0.1725, 0.3059, 0.5373
RGB percentages17.3%, 30.6%, 53.7%
HSLhsl(218.1, 51.4%, 35.5%)
HSV / HSBhsv(218.1, 67.9%, 53.7%)
CMYK67.9%, 43.1%, 0%, 46.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,903,689
CSS custom property--colour: #2C4E89;

Brightness & contrast

Relative luminance0.0779WCAG 2.x, 0 is black and 1 is white
Perceived brightness79.3 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 8.21:1
Contrast with white8.21:1WCAG normal text: AAA
Contrast with black2.56:1WCAG normal text: Fail
Greyscale equivalent#4B4B4B
Inverted#D3B176

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#33548Bno red cones; affects about 1% of men; ΔE 3.8 from the original
Deuteranopia#244B88no green cones; the most common form, about 1% of men; ΔE 2 from the original
Tritanopia#005C65no blue cones; rare, and affects men and women equally; ΔE 37.2 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text8.21:1WCAG large text: AAA
Contrast with black, large text2.56:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 19Steel blue · ΔE 22.9Cornflower blue · ΔE 31.1Midnight blue · ΔE 32.2Slate grey · ΔE 34Light slate grey · ΔE 35.5
Nearest named CSS colourDark slateblue (#483D8B)ΔE 18.98, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#89672C
Analogous#2C7D89, #382C89
Triadic#892C4E, #4E892C
Split complementary#89382C, #7D892C
Tetradic#892C7D, #89672C, #2C8938

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#A0B8E1
Lighter +30%#7A9BD4
Lighter +20%#537EC8
Lighter +10%#3864B0
Darker −10%#203862
Darker −20%#13223C
Darker −30%#070C15
Darker −40%#000000
More saturated +25%#1548A0
Less saturated −25%#435472

Channel breakdown

R44
G78
B137
Red44 (17.3%)
Green78 (30.6%)
Blue137 (53.7%)
Hue218.06°
Saturation (HSL)51.38%
Lightness35.49%
Dominant channelBlue
Hex per channelR 2C · G 4E · B 89

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Every value on this page was computed from “2c4e89” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.