Recognised as Colour

#19172C

#19172C
Blue
Dark
Nearest: Black

#19172C is a blue with RGB values 25, 23, 44 and HSL 246°, 31%, 13%. It is a dark colour, so white text on it reaches 17.5:1 contrast (AAA for normal text). The nearest named colour is Black.

Colour values

#19172C#19172C

HEX#19172C

RGBrgb(25, 23, 44)

RGB (0–1)0.098, 0.0902, 0.1725

RGB percentages9.8%, 9%, 17.3%

HSLhsl(245.7, 31.3%, 13.1%)

HSV / HSBhsv(245.7, 47.7%, 17.3%)

CMYK43.2%, 47.7%, 0%, 82.7%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer1,644,332

CSS custom property--colour: #19172C;

Brightness & contrast

Relative luminance0.01001WCAG 2.x, 0 is black and 1 is white

Perceived brightness26.8 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 17.5:1

Contrast with white17.5:1WCAG normal text: AAA

Contrast with black1.2:1WCAG normal text: Fail

Greyscale equivalent#191919

Inverted#E6E8D3

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#101A2Dno red cones; affects about 1% of men; ΔE 4.9 from the original

Deuteranopia#10192Bno green cones; the most common form, about 1% of men; ΔE 5 from the original

Tritanopia#141B1Fno blue cones; rare, and affects men and women equally; ΔE 13.7 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text17.5:1WCAG large text: AAA

Contrast with black, large text1.2:1WCAG large text: Fail

Named colours

Black · ΔE 18.1 Dark slate grey · ΔE 31 Dim grey · ΔE 38.7 Dark slateblue · ΔE 40.3 Midnight blue · ΔE 43.8 Slate grey · ΔE 45

Nearest named CSS colourBlack (#000000)ΔE 18.1, a distinctly different colour

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#2A2C17

Analogous#17202C, #23172C

Triadic#2C1917, #172C19

Split complementary#2C2317, #202C17

Tetradic#2C1720, #2A2C17, #172C23

Tints, shades & saturation

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

Lighter +40%#6962AD

Lighter +30%#524C90

Lighter +20%#3F3A6F

Lighter +10%#2C294D

Darker −10%#06050B

Darker −20%#000000

Darker −30%#000000

Darker −40%#000000

More saturated +25%#120F34

Less saturated −25%#201F24

Channel breakdown

R25

G23

B44

Red25 (9.8%)

Green23 (9%)

Blue44 (17.3%)

Hue245.71°

Saturation (HSL)31.34%

Lightness13.14%

Dominant channelBlue

Hex per channelR 19 · G 17 · B 2C

Keep nerding

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

#19172C

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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