Colour

#181F1C

#181F1C
Cyan
Dark
Nearest: Black

#181F1C is a cyan with RGB values 24, 31, 28 and HSL 154°, 13%, 11%. It is a dark colour, so white text on it reaches 16.8:1 contrast (AAA for normal text). The nearest named colour is Black.

Colour values

#181F1C#181F1C

HEX#181F1C

RGBrgb(24, 31, 28)

RGB (0–1)0.0941, 0.1216, 0.1098

RGB percentages9.4%, 12.2%, 11%

HSLhsl(154.3, 12.7%, 10.8%)

HSV / HSBhsv(154.3, 22.6%, 12.2%)

CMYK22.6%, 0%, 9.7%, 87.8%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer1,580,828

CSS custom property--colour: #181F1C;

Brightness & contrast

Relative luminance0.01258WCAG 2.x, 0 is black and 1 is white

Perceived brightness28.7 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 16.78:1

Contrast with white16.78:1WCAG normal text: AAA

Contrast with black1.25:1WCAG normal text: Fail

Greyscale equivalent#1D1D1D

Inverted#E7E0E3

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#1F1E1Cno red cones; affects about 1% of men; ΔE 4.1 from the original

Deuteranopia#1D1D1Cno green cones; the most common form, about 1% of men; ΔE 3.8 from the original

Tritanopia#171F1Eno blue cones; rare, and affects men and women equally; ΔE 1.5 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text16.78:1WCAG large text: AAA

Contrast with black, large text1.25:1WCAG large text: Fail

Named colours

Black · ΔE 11.7 Dark slate grey · ΔE 22.2 Dim grey · ΔE 33.7 Gray · ΔE 42.8 Slate grey · ΔE 43.5 Dark olivegreen · ΔE 45.5

Nearest named CSS colourBlack (#000000)ΔE 11.73, a distinctly different colour

Hue familycyan

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#1F181B

Analogous#181F18, #181F1F

Triadic#1C181F, #1F1C18

Split complementary#1F181F, #1F1818

Tetradic#18181F, #1F181B, #1E1F18

Tints, shades & saturation

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

Lighter +40%#729184

Lighter +30%#5B756A

Lighter +20%#455850

Lighter +10%#2E3C36

Darker −10%#020202

Darker −20%#000000

Darker −30%#000000

Darker −40%#000000

More saturated +25%#11261D

Less saturated −25%#1C1C1C

Channel breakdown

R24

G31

B28

Red24 (9.4%)

Green31 (12.2%)

Blue28 (11%)

Hue154.29°

Saturation (HSL)12.73%

Lightness10.78%

Dominant channelGreen

Hex per channelR 18 · G 1F · B 1C

Keep nerding

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

#181F1C

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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