Recognised as Colour

#172A2C

#172A2C
Cyan
Dark
Nearest: Dark slate grey

#172A2C is a cyan with RGB values 23, 42, 44 and HSL 186°, 31%, 13%. It is a dark colour, so white text on it reaches 15:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.

Colour values

#172A2C#172A2C

HEX#172A2C

RGBrgb(23, 42, 44)

RGB (0–1)0.0902, 0.1647, 0.1725

RGB percentages9%, 16.5%, 17.3%

HSLhsl(185.7, 31.3%, 13.1%)

HSV / HSBhsv(185.7, 47.7%, 17.3%)

CMYK47.7%, 4.5%, 0%, 82.7%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer1,518,124

CSS custom property--colour: #172A2C;

Brightness & contrast

Relative luminance0.0202WCAG 2.x, 0 is black and 1 is white

Perceived brightness37.6 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 14.96:1

Contrast with white14.96:1WCAG normal text: AAA

Contrast with black1.4:1WCAG normal text: Fail

Greyscale equivalent#262626

Inverted#E8D5D3

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#27282Cno red cones; affects about 1% of men; ΔE 7.7 from the original

Deuteranopia#24262Cno green cones; the most common form, about 1% of men; ΔE 7.8 from the original

Tritanopia#0E2B2Bno blue cones; rare, and affects men and women equally; ΔE 3.7 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text14.96:1WCAG large text: AAA

Contrast with black, large text1.4:1WCAG large text: Fail

Named colours

Dark slate grey · ΔE 16.3 Black · ΔE 17.5 Dim grey · ΔE 29.9 Slate grey · ΔE 38.2 Gray · ΔE 38.8 Teal · ΔE 39.5

Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 16.34, a distinctly different colour

Hue familycyan

CSS keyword usableNo exact keyword

Colour harmonies

base +30°+90°+120°+180°+210°+240°+270°+330°

Complementary#2C1917

Analogous#172C24, #171F2C

Triadic#2C172A, #2A2C17

Split complementary#2C171F, #2C2417

Tetradic#24172C, #2C1917, #202C17

Tints, shades & saturation

+40%+30%+20%+10%base -10%-20%-30%-40%

Lighter +40%#62A6AD

Lighter +30%#4C8A90

Lighter +20%#3A6A6F

Lighter +10%#294A4D

Darker −10%#050A0B

Darker −20%#000000

Darker −30%#000000

Darker −40%#000000

More saturated +25%#0F3134

Less saturated −25%#1F2324

Channel breakdown

R23

G42

B44

Red23 (9%)

Green42 (16.5%)

Blue44 (17.3%)

Hue185.71°

Saturation (HSL)31.34%

Lightness13.14%

Dominant channelBlue

Hex per channelR 17 · G 2A · B 2C

Keep nerding

Every link below is a page Nerdulator can generate from what it already knows about this value.

#172A2C

Colour values

Brightness & contrast

Colour vision & accessibility

Named colours

Colour harmonies

Tints, shades & saturation

Channel breakdown

Keep nerding

Harmonies

Lighter and darker

Similar named colours

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