Colour

#310C18

#310C18
Red
Dark
Nearest: Black

#310C18 is a red with RGB values 49, 12, 24 and HSL 341°, 61%, 12%. It is a dark colour, so white text on it reaches 17.6:1 contrast (AAA for normal text). The nearest named colour is Black.

Colour values

#310C18#310C18

HEX#310C18

RGBrgb(49, 12, 24)

RGB (0–1)0.1922, 0.0471, 0.0941

RGB percentages19.2%, 4.7%, 9.4%

HSLhsl(340.5, 60.7%, 12%)

HSV / HSBhsv(340.5, 75.5%, 19.2%)

CMYK0%, 75.5%, 51%, 80.8%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer3,214,360

CSS custom property--colour: #310C18;

Brightness & contrast

Relative luminance0.00982WCAG 2.x, 0 is black and 1 is white

Perceived brightness29.5 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 17.55:1

Contrast with white17.55:1WCAG normal text: AAA

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

Greyscale equivalent#151515

Inverted#CEF3E7

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#131518no red cones; affects about 1% of men; ΔE 20.6 from the original

Deuteranopia#1D1C17no green cones; the most common form, about 1% of men; ΔE 20.9 from the original

Tritanopia#360811no blue cones; rare, and affects men and women equally; ΔE 6 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text17.55:1WCAG large text: AAA

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

Named colours

Black · ΔE 22 Dark slate grey · ΔE 39.2 Dim grey · ΔE 40.9 Dark slateblue · ΔE 49 Gray · ΔE 49.1 Maroon · ΔE 49.1

Nearest named CSS colourBlack (#000000)ΔE 21.98, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#0C3125

Analogous#310C2B, #31120C

Triadic#18310C, #0C1831

Split complementary#0C3112, #0C2B31

Tetradic#2B310C, #0C3125, #120C31

Tints, shades & saturation

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

Lighter +40%#CF3A6A

Lighter +30%#AC2A54

Lighter +20%#832040

Lighter +10%#5A162C

Darker −10%#080204

Darker −20%#000000

Darker −30%#000000

Darker −40%#000000

More saturated +25%#390415

Less saturated −25%#29141B

Channel breakdown

R49

G12

B24

Red49 (19.2%)

Green12 (4.7%)

Blue24 (9.4%)

Hue340.54°

Saturation (HSL)60.66%

Lightness11.96%

Dominant channelRed

Hex per channelR 31 · G 0C · B 18

Keep nerding

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

#310C18

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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