Colour

#00181A

#00181A
Cyan
Dark
Nearest: Black

#00181A is a cyan with RGB values 0, 24, 26 and HSL 185°, 100%, 5%. It is a dark colour, so white text on it reaches 18.3:1 contrast (AAA for normal text). The nearest named colour is Black.

Colour values

#00181A#00181A

HEX#00181A

RGBrgb(0, 24, 26)

RGB (0–1)0, 0.0941, 0.102

RGB percentages0%, 9.4%, 10.2%

HSLhsl(184.6, 100%, 5.1%)

HSV / HSBhsv(184.6, 100%, 10.2%)

CMYK100%, 7.7%, 0%, 89.8%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer6,170

CSS custom property--colour: #00181A;

Brightness & contrast

Relative luminance0.00728WCAG 2.x, 0 is black and 1 is white

Perceived brightness20.4 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 18.33:1

Contrast with white18.33:1WCAG normal text: AAA

Contrast with black1.15:1WCAG normal text: Fail

Greyscale equivalent#131313

Inverted#FFE7E5

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#15161Ano red cones; affects about 1% of men; ΔE 8.1 from the original

Deuteranopia#11131Ano green cones; the most common form, about 1% of men; ΔE 8.4 from the original

Tritanopia#001A19no blue cones; rare, and affects men and women equally; ΔE 2.7 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text18.33:1WCAG large text: AAA

Contrast with black, large text1.15:1WCAG large text: Fail

Named colours

Black · ΔE 10.7 Dark slate grey · ΔE 25.1 Dim grey · ΔE 38.8 Slate grey · ΔE 47 Teal · ΔE 47.1 Gray · ΔE 47.8

Nearest named CSS colourBlack (#000000)ΔE 10.69, a distinctly different colour

Hue familycyan

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#1A0200

Analogous#001A0F, #000B1A

Triadic#1A0018, #181A00

Split complementary#1A000B, #1A0F00

Tetradic#0F001A, #1A0200, #0B1A00

Tints, shades & saturation

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

Lighter +40%#00D4E6

Lighter +30%#00A5B3

Lighter +20%#007680

Lighter +10%#00474D

Darker −10%#000000

Darker −20%#000000

Darker −30%#000000

Darker −40%#000000

More saturated +25%#00181A

Less saturated −25%#031517

Channel breakdown

G24

B26

Red0 (0%)

Green24 (9.4%)

Blue26 (10.2%)

Hue184.62°

Saturation (HSL)100%

Lightness5.1%

Dominant channelBlue

Hex per channelR 00 · G 18 · B 1A

Keep nerding

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

#00181A

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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