Colour

#181A24

#181A24
Blue
Dark
Nearest: Black

#181A24 is a blue with RGB values 24, 26, 36 and HSL 230°, 20%, 12%. It is a dark colour, so white text on it reaches 17.3:1 contrast (AAA for normal text). The nearest named colour is Black.

Colour values

#181A24#181A24

HEX#181A24

RGBrgb(24, 26, 36)

RGB (0–1)0.0941, 0.102, 0.1412

RGB percentages9.4%, 10.2%, 14.1%

HSLhsl(230, 20%, 11.8%)

HSV / HSBhsv(230, 33.3%, 14.1%)

CMYK33.3%, 27.8%, 0%, 85.9%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer1,579,556

CSS custom property--colour: #181A24;

Brightness & contrast

Relative luminance0.0106WCAG 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 17.33:1

Contrast with white17.33:1WCAG normal text: AAA

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

Greyscale equivalent#1A1A1A

Inverted#E7E5DB

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#171B24no red cones; affects about 1% of men; ΔE 1.2 from the original

Deuteranopia#161A24no green cones; the most common form, about 1% of men; ΔE 0.9 from the original

Tritanopia#151C1Dno blue cones; rare, and affects men and women equally; ΔE 7.3 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text17.33:1WCAG large text: AAA

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

Named colours

Black · ΔE 12.1 Dark slate grey · ΔE 26 Dim grey · ΔE 35.7 Slate grey · ΔE 43.7 Gray · ΔE 44.7 Light slate grey · ΔE 46.8

Nearest named CSS colourBlack (#000000)ΔE 12.06, a distinctly different colour

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#242218

Analogous#182024, #1C1824

Triadic#24181A, #1A2418

Split complementary#241C18, #202418

Tetradic#241820, #242218, #18241C

Tints, shades & saturation

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

Lighter +40%#6B749D

Lighter +30%#555C80

Lighter +20%#414661

Lighter +10%#2C3043

Darker −10%#040405

Darker −20%#000000

Darker −30%#000000

Darker −40%#000000

More saturated +25%#10152B

Less saturated −25%#1E1E1E

Channel breakdown

R24

G26

B36

Red24 (9.4%)

Green26 (10.2%)

Blue36 (14.1%)

Hue230°

Saturation (HSL)20%

Lightness11.76%

Dominant channelBlue

Hex per channelR 18 · G 1A · B 24

Keep nerding

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#181A24

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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