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Recognised as Colour

#11583A

  • #11583A
  • Cyan
  • Dark
  • Nearest: Sea green

#11583A is a cyan with RGB values 17, 88, 58 and HSL 155°, 68%, 21%. It is a dark colour, so white text on it reaches 8.5:1 contrast (AAA for normal text). The nearest named colour is Sea green.

Colour values

#11583A#11583A
HEX#11583A
RGBrgb(17, 88, 58)
RGB (0–1)0.0667, 0.3451, 0.2275
RGB percentages6.7%, 34.5%, 22.7%
HSLhsl(154.6, 67.6%, 20.6%)
HSV / HSBhsv(154.6, 80.7%, 34.5%)
CMYK80.7%, 0%, 34.1%, 65.5%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,136,698
CSS custom property--colour: #11583A;

Brightness & contrast

Relative luminance0.07404WCAG 2.x, 0 is black and 1 is white
Perceived brightness70.8 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 8.46:1
Contrast with white8.46:1WCAG normal text: AAA
Contrast with black2.48:1WCAG normal text: Fail
Greyscale equivalent#474747
Inverted#EEA7C5

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#575138no red cones; affects about 1% of men; ΔE 27.7 from the original
Deuteranopia#4E4A3Cno green cones; the most common form, about 1% of men; ΔE 28.4 from the original
Tritanopia#005850no blue cones; rare, and affects men and women equally; ΔE 14 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text8.46:1WCAG large text: AAA
Contrast with black, large text2.48:1WCAG large text: Fail

Named colours

Sea green · ΔE 23.2Dark slate grey · ΔE 23.2Dark olivegreen · ΔE 23.8Teal · ΔE 25.3Dark cyan · ΔE 28.3Dim grey · ΔE 33.5
Nearest named CSS colourSea green (#2E8B57)ΔE 23.18, a distinctly different colour
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#58112F
Analogous#115817, #115258
Triadic#3A1158, #583A11
Split complementary#581152, #581711
Tetradic#171158, #58112F, #525811

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#57DEA5
Lighter +30%#2CD68E
Lighter +20%#22AD72
Lighter +10%#198356
Darker −10%#092D1E
Darker −20%#000302
Darker −30%#000000
Darker −40%#000000
More saturated +25%#04653C
Less saturated −25%#1E4B38

Channel breakdown

R17
G88
B58
Red17 (6.7%)
Green88 (34.5%)
Blue58 (22.7%)
Hue154.65°
Saturation (HSL)67.62%
Lightness20.59%
Dominant channelGreen
Hex per channelR 11 · G 58 · B 3A

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Every value on this page was computed from “11583a” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.