Colour

#1B181F

#1B181F
Violet
Dark
Nearest: Black

#1B181F is a violet with RGB values 27, 24, 31 and HSL 266°, 13%, 11%. It is a dark colour, so white text on it reaches 17.5:1 contrast (AAA for normal text). The nearest named colour is Black.

Colour values

#1B181F#1B181F

HEX#1B181F

RGBrgb(27, 24, 31)

RGB (0–1)0.1059, 0.0941, 0.1216

RGB percentages10.6%, 9.4%, 12.2%

HSLhsl(265.7, 12.7%, 10.8%)

HSV / HSBhsv(265.7, 22.6%, 12.2%)

CMYK12.9%, 22.6%, 0%, 87.8%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer1,775,647

CSS custom property--colour: #1B181F;

Brightness & contrast

Relative luminance0.00985WCAG 2.x, 0 is black and 1 is white

Perceived brightness25.8 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 17.54:1

Contrast with white17.54:1WCAG normal text: AAA

Contrast with black1.2:1WCAG normal text: Fail

Greyscale equivalent#191919

Inverted#E4E7E0

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#17191Fno red cones; affects about 1% of men; ΔE 2.5 from the original

Deuteranopia#17191Fno green cones; the most common form, about 1% of men; ΔE 2.5 from the original

Tritanopia#1A191Ano blue cones; rare, and affects men and women equally; ΔE 4.6 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text17.54:1WCAG large text: AAA

Contrast with black, large text1.2:1WCAG large text: Fail

Named colours

Black · ΔE 10.4 Dark slate grey · ΔE 27 Dim grey · ΔE 36 Slate grey · ΔE 44.7 Gray · ΔE 45 Light slate grey · ΔE 47.9

Nearest named CSS colourBlack (#000000)ΔE 10.41, a distinctly different colour

Hue familyviolet

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#1C1F18

Analogous#18181F, #1F181F

Triadic#1F1B18, #181F1B

Split complementary#1F1F18, #181F18

Tetradic#1F1818, #1C1F18, #181F1F

Tints, shades & saturation

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

Lighter +40%#7F7291

Lighter +30%#665B75

Lighter +20%#4D4558

Lighter +10%#342E3C

Darker −10%#020202

Darker −20%#000000

Darker −30%#000000

Darker −40%#000000

More saturated +25%#1A1126

Less saturated −25%#1C1C1C

Channel breakdown

R27

G24

B31

Red27 (10.6%)

Green24 (9.4%)

Blue31 (12.2%)

Hue265.71°

Saturation (HSL)12.73%

Lightness10.78%

Dominant channelBlue

Hex per channelR 1B · G 18 · B 1F

Keep nerding

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

#1B181F

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

Nerdulate something else