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Recognised as Colour

#175D6A

  • #175D6A
  • Cyan
  • Dark
  • Nearest: Dark slate grey

#175D6A is a cyan with RGB values 23, 93, 106 and HSL 189°, 64%, 25%. It is a dark colour, so white text on it reaches 7.5:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.

Colour values

#175D6A#175D6A
HEX#175D6A
RGBrgb(23, 93, 106)
RGB (0–1)0.0902, 0.3647, 0.4157
RGB percentages9%, 36.5%, 41.6%
HSLhsl(189.4, 64.3%, 25.3%)
HSV / HSBhsv(189.4, 78.3%, 41.6%)
CMYK78.3%, 12.3%, 0%, 58.4%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,531,242
CSS custom property--colour: #175D6A;

Brightness & contrast

Relative luminance0.09051WCAG 2.x, 0 is black and 1 is white
Perceived brightness80.7 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 7.47:1
Contrast with white7.47:1WCAG normal text: AAA
Contrast with black2.81:1WCAG normal text: Fail
Greyscale equivalent#4F4F4F
Inverted#E8A295

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#535A6Bno red cones; affects about 1% of men; ΔE 18 from the original
Deuteranopia#48516Ano green cones; the most common form, about 1% of men; ΔE 19.3 from the original
Tritanopia#006261no blue cones; rare, and affects men and women equally; ΔE 10.7 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text7.47:1WCAG large text: AAA
Contrast with black, large text2.81:1WCAG large text: Fail

Named colours

Dark slate grey · ΔE 11.8Teal · ΔE 18.2Dark cyan · ΔE 22.1Slate grey · ΔE 22.1Dim grey · ΔE 22.7Light slate grey · ΔE 24.4
Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 11.83, a distinctly different colour
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#6A2417
Analogous#176A4D, #17346A
Triadic#6A175D, #5D6A17
Split complementary#6A1734, #6A4E17
Tetradic#4D176A, #6A2417, #336A17

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#6ECEDF
Lighter +30%#44BFD6
Lighter +20%#29A7BE
Lighter +10%#208294
Darker −10%#0E3840
Darker −20%#051316
Darker −30%#000000
Darker −40%#000000
More saturated +25%#07687A
Less saturated −25%#27525A

Channel breakdown

R23
G93
B106
Red23 (9%)
Green93 (36.5%)
Blue106 (41.6%)
Hue189.4°
Saturation (HSL)64.34%
Lightness25.29%
Dominant channelBlue
Hex per channelR 17 · G 5D · B 6A

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Every value on this page was computed from “175d6a” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.