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Recognised as Colour

#173D46

  • #173D46
  • Cyan
  • Dark
  • Nearest: Dark slate grey

#173D46 is a cyan with RGB values 23, 61, 70 and HSL 191°, 51%, 18%. It is a dark colour, so white text on it reaches 11.7:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.

Colour values

#173D46#173D46
HEX#173D46
RGBrgb(23, 61, 70)
RGB (0–1)0.0902, 0.2392, 0.2745
RGB percentages9%, 23.9%, 27.5%
HSLhsl(191.5, 50.5%, 18.2%)
HSV / HSBhsv(191.5, 67.1%, 27.5%)
CMYK67.1%, 12.9%, 0%, 72.5%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,523,014
CSS custom property--colour: #173D46;

Brightness & contrast

Relative luminance0.03962WCAG 2.x, 0 is black and 1 is white
Perceived brightness53.9 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 11.72:1
Contrast with white11.72:1WCAG normal text: AAA
Contrast with black1.79:1WCAG normal text: Fail
Greyscale equivalent#363636
Inverted#E8C2B9

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#373B47no red cones; affects about 1% of men; ΔE 11.8 from the original
Deuteranopia#303646no green cones; the most common form, about 1% of men; ΔE 12.2 from the original
Tritanopia#004040no blue cones; rare, and affects men and women equally; ΔE 8.8 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text11.72:1WCAG large text: AAA
Contrast with black, large text1.79:1WCAG large text: Fail

Named colours

Dark slate grey · ΔE 9.8Dim grey · ΔE 25.1Black · ΔE 27.4Slate grey · ΔE 30.4Teal · ΔE 31Gray · ΔE 33.1
Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 9.78, clearly different but related
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#462017
Analogous#174638, #172646
Triadic#46173D, #3D4617
Split complementary#461726, #463817
Tetradic#381746, #462017, #254617

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#5FB6CA
Lighter +30%#3DA1B9
Lighter +20%#308093
Lighter +10%#245E6C
Darker −10%#0A1C20
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#0B4452
Less saturated −25%#23363A

Channel breakdown

R23
G61
B70
Red23 (9%)
Green61 (23.9%)
Blue70 (27.5%)
Hue191.49°
Saturation (HSL)50.54%
Lightness18.24%
Dominant channelBlue
Hex per channelR 17 · G 3D · B 46

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Every value on this page was computed from “173d46” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.