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Colour

#13573B

  • #13573B
  • Cyan
  • Dark
  • Nearest: Dark slate grey

#13573B is a cyan with RGB values 19, 87, 59 and HSL 155°, 64%, 21%. It is a dark colour, so white text on it reaches 8.6:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.

Colour values

#13573B#13573B
HEX#13573B
RGBrgb(19, 87, 59)
RGB (0–1)0.0745, 0.3412, 0.2314
RGB percentages7.5%, 34.1%, 23.1%
HSLhsl(155.3, 64.2%, 20.8%)
HSV / HSBhsv(155.3, 78.2%, 34.1%)
CMYK78.2%, 0%, 32.2%, 65.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,267,515
CSS custom property--colour: #13573B;

Brightness & contrast

Relative luminance0.07271WCAG 2.x, 0 is black and 1 is white
Perceived brightness70.3 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 8.56:1
Contrast with white8.56:1WCAG normal text: AAA
Contrast with black2.45:1WCAG normal text: Fail
Greyscale equivalent#474747
Inverted#ECA8C4

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#565039no red cones; affects about 1% of men; ΔE 27 from the original
Deuteranopia#4D4A3Dno green cones; the most common form, about 1% of men; ΔE 27.1 from the original
Tritanopia#005750no blue cones; rare, and affects men and women equally; ΔE 13.4 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text8.56:1WCAG large text: AAA
Contrast with black, large text2.45:1WCAG large text: Fail

Named colours

Dark slate grey · ΔE 21.8Sea green · ΔE 24.3Dark olivegreen · ΔE 24.3Teal · ΔE 24.7Dark cyan · ΔE 27.8Dim grey · ΔE 32.4
Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 21.8, a distinctly different colour
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#57132F
Analogous#135719, #135157
Triadic#3B1357, #573B13
Split complementary#571351, #571913
Tetradic#191357, #57132F, #515713

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#5BDBA6
Lighter +30%#31D290
Lighter +20%#25AB74
Lighter +10%#1C8157
Darker −10%#0A2D1F
Darker −20%#010302
Darker −30%#000000
Darker −40%#000000
More saturated +25%#06643D
Less saturated −25%#204A39

Channel breakdown

R19
G87
B59
Red19 (7.5%)
Green87 (34.1%)
Blue59 (23.1%)
Hue155.29°
Saturation (HSL)64.15%
Lightness20.78%
Dominant channelGreen
Hex per channelR 13 · G 57 · B 3B

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Every value on this page was computed from “13573b” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.