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Colour

#17393F

  • #17393F
  • Cyan
  • Dark
  • Nearest: Dark slate grey

#17393F is a cyan with RGB values 23, 57, 63 and HSL 189°, 47%, 17%. It is a dark colour, so white text on it reaches 12.4:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.

Colour values

#17393F#17393F
HEX#17393F
RGBrgb(23, 57, 63)
RGB (0–1)0.0902, 0.2235, 0.2471
RGB percentages9%, 22.4%, 24.7%
HSLhsl(189, 46.5%, 16.9%)
HSV / HSBhsv(189, 63.5%, 24.7%)
CMYK63.5%, 9.5%, 0%, 75.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,521,983
CSS custom property--colour: #17393F;

Brightness & contrast

Relative luminance0.03467WCAG 2.x, 0 is black and 1 is white
Perceived brightness50.2 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 12.4:1
Contrast with white12.4:1WCAG normal text: AAA
Contrast with black1.69:1WCAG normal text: Fail
Greyscale equivalent#323232
Inverted#E8C6C0

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#34373Fno red cones; affects about 1% of men; ΔE 11.2 from the original
Deuteranopia#2E323Fno green cones; the most common form, about 1% of men; ΔE 12.1 from the original
Tritanopia#003C3Bno blue cones; rare, and affects men and women equally; ΔE 7.9 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text12.4:1WCAG large text: AAA
Contrast with black, large text1.69:1WCAG large text: Fail

Named colours

Dark slate grey · ΔE 10.3Black · ΔE 25.2Dim grey · ΔE 25.9Slate grey · ΔE 32.2Teal · ΔE 32.3Gray · ΔE 34.2
Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 10.26, a distinctly different colour
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#3F1D17
Analogous#173F31, #17253F
Triadic#3F1739, #393F17
Split complementary#3F1725, #3F3117
Tetradic#31173F, #3F1D17, #253F17

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#5EB5C4
Lighter +30%#409EAF
Lighter +20%#327D8A
Lighter +10%#255B64
Darker −10%#09171A
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#0C414A
Less saturated −25%#223134

Channel breakdown

R23
G57
B63
Red23 (9%)
Green57 (22.4%)
Blue63 (24.7%)
Hue189°
Saturation (HSL)46.51%
Lightness16.86%
Dominant channelBlue
Hex per channelR 17 · G 39 · B 3F

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Every value on this page was computed from “17393f” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.