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Recognised as Colour

#11383C

  • #11383C
  • Cyan
  • Dark
  • Nearest: Dark slate grey

#11383C is a cyan with RGB values 17, 56, 60 and HSL 186°, 56%, 15%. It is a dark colour, so white text on it reaches 12.7:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.

Colour values

#11383C#11383C
HEX#11383C
RGBrgb(17, 56, 60)
RGB (0–1)0.0667, 0.2196, 0.2353
RGB percentages6.7%, 22%, 23.5%
HSLhsl(185.6, 55.8%, 15.1%)
HSV / HSBhsv(185.6, 71.7%, 23.5%)
CMYK71.7%, 6.7%, 0%, 76.5%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,128,508
CSS custom property--colour: #11383C;

Brightness & contrast

Relative luminance0.03274WCAG 2.x, 0 is black and 1 is white
Perceived brightness48.3 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 12.69:1
Contrast with white12.69:1WCAG normal text: AAA
Contrast with black1.65:1WCAG normal text: Fail
Greyscale equivalent#303030
Inverted#EEC7C3

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#33353Cno red cones; affects about 1% of men; ΔE 13.1 from the original
Deuteranopia#2D313Cno green cones; the most common form, about 1% of men; ΔE 13.3 from the original
Tritanopia#003B39no blue cones; rare, and affects men and women equally; ΔE 6.3 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text12.69:1WCAG large text: AAA
Contrast with black, large text1.65:1WCAG large text: Fail

Named colours

Dark slate grey · ΔE 10.5Black · ΔE 25.2Dim grey · ΔE 27Teal · ΔE 32Slate grey · ΔE 33.5Gray · ΔE 35.3
Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 10.54, a distinctly different colour
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#3C1511
Analogous#113C2A, #11233C
Triadic#3C1138, #383C11
Split complementary#3C1123, #3C2A11
Tetradic#2A113C, #3C1511, #233C11

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#4DC1CC
Lighter +30%#33A7B3
Lighter +20%#28828B
Lighter +10%#1C5D64
Darker −10%#061314
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#074046
Less saturated −25%#1B3032

Channel breakdown

R17
G56
B60
Red17 (6.7%)
Green56 (22%)
Blue60 (23.5%)
Hue185.58°
Saturation (HSL)55.84%
Lightness15.1%
Dominant channelBlue
Hex per channelR 11 · G 38 · B 3C

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Every value on this page was computed from “11383c” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.