Recognised as Colour

#0D181F

#0D181F
Blue
Dark
Nearest: Black

#0D181F is a blue with RGB values 13, 24, 31 and HSL 203°, 41%, 9%. It is a dark colour, so white text on it reaches 18:1 contrast (AAA for normal text). The nearest named colour is Black.

Colour values

#0D181F#0D181F

HEX#0D181F

RGBrgb(13, 24, 31)

RGB (0–1)0.051, 0.0941, 0.1216

RGB percentages5.1%, 9.4%, 12.2%

HSLhsl(203.3, 40.9%, 8.6%)

HSV / HSBhsv(203.3, 58.1%, 12.2%)

CMYK58.1%, 22.6%, 0%, 87.8%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer858,143

CSS custom property--colour: #0D181F;

Brightness & contrast

Relative luminance0.00838WCAG 2.x, 0 is black and 1 is white

Perceived brightness22.3 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 17.99:1

Contrast with white17.99:1WCAG normal text: AAA

Contrast with black1.17:1WCAG normal text: Fail

Greyscale equivalent#161616

Inverted#F2E7E0

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#15181Fno red cones; affects about 1% of men; ΔE 3.2 from the original

Deuteranopia#12161Fno green cones; the most common form, about 1% of men; ΔE 3.3 from the original

Tritanopia#061A1Ano blue cones; rare, and affects men and women equally; ΔE 6.4 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text17.99:1WCAG large text: AAA

Contrast with black, large text1.17:1WCAG large text: Fail

Named colours

Black · ΔE 10.2 Dark slate grey · ΔE 25.6 Dim grey · ΔE 37.5 Slate grey · ΔE 45.5 Gray · ΔE 46.5 Light slate grey · ΔE 48.6

Nearest named CSS colourBlack (#000000)ΔE 10.2, a distinctly different colour

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#1F140D

Analogous#0D1F1D, #0D0F1F

Triadic#1F0D18, #181F0D

Split complementary#1F0D0F, #1F1D0D

Tetradic#1D0D1F, #1F140D, #0F1F0D

Tints, shades & saturation

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

Lighter +40%#4987AF

Lighter +30%#3A6B8B

Lighter +20%#2B5067

Lighter +10%#1C3443

Darker −10%#000000

Darker −20%#000000

Darker −30%#000000

Darker −40%#000000

More saturated +25%#071925

Less saturated −25%#131719

Channel breakdown

R13

G24

B31

Red13 (5.1%)

Green24 (9.4%)

Blue31 (12.2%)

Hue203.33°

Saturation (HSL)40.91%

Lightness8.63%

Dominant channelBlue

Hex per channelR 0D · G 18 · B 1F

Keep nerding

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

#0D181F

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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