Colour

#181A20

#181A20
Blue
Dark
Nearest: Black

#181A20 is a blue with RGB values 24, 26, 32 and HSL 225°, 14%, 11%. It is a dark colour, so white text on it reaches 17.4:1 contrast (AAA for normal text). The nearest named colour is Black.

Colour values

#181A20#181A20

HEX#181A20

RGBrgb(24, 26, 32)

RGB (0–1)0.0941, 0.102, 0.1255

RGB percentages9.4%, 10.2%, 12.5%

HSLhsl(225, 14.3%, 11%)

HSV / HSBhsv(225, 25%, 12.5%)

CMYK25%, 18.8%, 0%, 87.5%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer1,579,552

CSS custom property--colour: #181A20;

Brightness & contrast

Relative luminance0.01037WCAG 2.x, 0 is black and 1 is white

Perceived brightness26.2 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 17.39:1

Contrast with white17.39:1WCAG normal text: AAA

Contrast with black1.21:1WCAG normal text: Fail

Greyscale equivalent#1A1A1A

Inverted#E7E5DF

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#181A20no red cones; affects about 1% of men; ΔE 0 from the original

Deuteranopia#181A20no green cones; the most common form, about 1% of men; ΔE 0 from the original

Tritanopia#161B1Cno blue cones; rare, and affects men and women equally; ΔE 4.1 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text17.39:1WCAG large text: AAA

Contrast with black, large text1.21:1WCAG large text: Fail

Named colours

Black · ΔE 10.3 Dark slate grey · ΔE 25.3 Dim grey · ΔE 35.4 Slate grey · ΔE 44.1 Gray · ΔE 44.5 Light slate grey · ΔE 47.2

Nearest named CSS colourBlack (#000000)ΔE 10.34, a distinctly different colour

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#201E18

Analogous#181E20, #1A1820

Triadic#20181A, #1A2018

Split complementary#201A18, #1E2018

Tetradic#20181E, #201E18, #18201A

Tints, shades & saturation

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

Lighter +40%#707994

Lighter +30%#5A6177

Lighter +20%#44495A

Lighter +10%#2E323D

Darker −10%#020203

Darker −20%#000000

Darker −30%#000000

Darker −40%#000000

More saturated +25%#111627

Less saturated −25%#1C1C1C

Channel breakdown

R24

G26

B32

Red24 (9.4%)

Green26 (10.2%)

Blue32 (12.5%)

Hue225°

Saturation (HSL)14.29%

Lightness10.98%

Dominant channelBlue

Hex per channelR 18 · G 1A · B 20

Keep nerding

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#181A20

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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