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Recognised as Colour

#182E4E

  • #182E4E
  • Blue
  • Dark
  • Nearest: Dark slate grey

#182E4E is a blue with RGB values 24, 46, 78 and HSL 216°, 53%, 20%. It is a dark colour, so white text on it reaches 13.6:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.

Colour values

#182E4E#182E4E
HEX#182E4E
RGBrgb(24, 46, 78)
RGB (0–1)0.0941, 0.1804, 0.3059
RGB percentages9.4%, 18%, 30.6%
HSLhsl(215.6, 52.9%, 20%)
HSV / HSBhsv(215.6, 69.2%, 30.6%)
CMYK69.2%, 41%, 0%, 69.4%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,584,718
CSS custom property--colour: #182E4E;

Brightness & contrast

Relative luminance0.02698WCAG 2.x, 0 is black and 1 is white
Perceived brightness45.9 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 13.64:1
Contrast with white13.64:1WCAG normal text: AAA
Contrast with black1.54:1WCAG normal text: Fail
Greyscale equivalent#2C2C2C
Inverted#E7D1B1

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#20304Fno red cones; affects about 1% of men; ΔE 1.9 from the original
Deuteranopia#192B4Dno green cones; the most common form, about 1% of men; ΔE 2.4 from the original
Tritanopia#00353Ano blue cones; rare, and affects men and women equally; ΔE 22.4 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text13.64:1WCAG large text: AAA
Contrast with black, large text1.54:1WCAG large text: Fail

Named colours

Dark slate grey · ΔE 26.9Black · ΔE 29.3Dark slateblue · ΔE 32.6Dim grey · ΔE 34.1Steel blue · ΔE 35.8Slate grey · ΔE 36.4
Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 26.85, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#4E3818
Analogous#18494E, #1D184E
Triadic#4E182E, #2E4E18
Split complementary#4E1D18, #494E18
Tetradic#4E1849, #4E3818, #184E1D

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#638FCF
Lighter +30%#3C73C3
Lighter +20%#305C9C
Lighter +10%#244575
Darker −10%#0C1727
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#0B2C5B
Less saturated −25%#253041

Channel breakdown

R24
G46
B78
Red24 (9.4%)
Green46 (18%)
Blue78 (30.6%)
Hue215.56°
Saturation (HSL)52.94%
Lightness20%
Dominant channelBlue
Hex per channelR 18 · G 2E · B 4E

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Every value on this page was computed from “182e4e” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.