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Recognised as Colour

#18242C

  • #18242C
  • Blue
  • Dark
  • Nearest: Black

#18242C is a blue with RGB values 24, 36, 44 and HSL 204°, 29%, 13%. It is a dark colour, so white text on it reaches 15.8:1 contrast (AAA for normal text). The nearest named colour is Black.

Colour values

#18242C#18242C
HEX#18242C
RGBrgb(24, 36, 44)
RGB (0–1)0.0941, 0.1412, 0.1725
RGB percentages9.4%, 14.1%, 17.3%
HSLhsl(204, 29.4%, 13.3%)
HSV / HSBhsv(204, 45.5%, 17.3%)
CMYK45.5%, 18.2%, 0%, 82.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,582,124
CSS custom property--colour: #18242C;

Brightness & contrast

Relative luminance0.01638WCAG 2.x, 0 is black and 1 is white
Perceived brightness34 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 15.82:1
Contrast with white15.82:1WCAG normal text: AAA
Contrast with black1.33:1WCAG normal text: Fail
Greyscale equivalent#222222
Inverted#E7DBD3

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#20242Cno red cones; affects about 1% of men; ΔE 3.3 from the original
Deuteranopia#1E222Cno green cones; the most common form, about 1% of men; ΔE 3.7 from the original
Tritanopia#112627no blue cones; rare, and affects men and women equally; ΔE 6.6 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text15.82:1WCAG large text: AAA
Contrast with black, large text1.33:1WCAG large text: Fail

Named colours

Black · ΔE 15.4Dark slate grey · ΔE 20.2Dim grey · ΔE 31.8Slate grey · ΔE 39.5Gray · ΔE 40.8Light slate grey · ΔE 42.7
Nearest named CSS colourBlack (#000000)ΔE 15.38, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#2C2018
Analogous#182C2A, #181A2C
Triadic#2C1824, #242C18
Split complementary#2C181A, #2C2A18
Tetradic#2A182C, #2C2018, #1A2C18

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#658FAB
Lighter +30%#4E758F
Lighter +20%#3C5A6E
Lighter +10%#2A3F4D
Darker −10%#06090B
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#102635
Less saturated −25%#212224

Channel breakdown

R24
G36
B44
Red24 (9.4%)
Green36 (14.1%)
Blue44 (17.3%)
Hue204°
Saturation (HSL)29.41%
Lightness13.33%
Dominant channelBlue
Hex per channelR 18 · G 24 · B 2C

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Every value on this page was computed from “18242c” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.