Recognised as Colour

#310D09

#310D09
Red
Dark
Nearest: Black

#310D09 is a red with RGB values 49, 13, 9 and HSL 6°, 69%, 11%. 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

#310D09#310D09

HEX#310D09

RGBrgb(49, 13, 9)

RGB (0–1)0.1922, 0.051, 0.0353

RGB percentages19.2%, 5.1%, 3.5%

HSLhsl(6, 69%, 11.4%)

HSV / HSBhsv(6, 81.6%, 19.2%)

CMYK0%, 73.5%, 81.6%, 80.8%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer3,214,601

CSS custom property--colour: #310D09;

Brightness & contrast

Relative luminance0.00961WCAG 2.x, 0 is black and 1 is white

Perceived brightness28.7 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 17.62:1

Contrast with white17.62:1WCAG normal text: AAA

Contrast with black1.19:1WCAG normal text: Fail

Greyscale equivalent#141414

Inverted#CEF2F6

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#171408no red cones; affects about 1% of men; ΔE 19.2 from the original

Deuteranopia#201C08no green cones; the most common form, about 1% of men; ΔE 19.7 from the original

Tritanopia#37060Cno 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 text17.62:1WCAG large text: AAA

Contrast with black, large text1.19:1WCAG large text: Fail

Named colours

Black · ΔE 22.2 Dark slate grey · ΔE 39.7 Dim grey · ΔE 41.2 Saddle brown · ΔE 43.4 Maroon · ΔE 44.6 Sienna · ΔE 45.1

Nearest named CSS colourBlack (#000000)ΔE 22.2, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#092D31

Analogous#310919, #312109

Triadic#09310D, #0D0931

Split complementary#093121, #091931

Tetradic#193109, #092D31, #210931

Tints, shades & saturation

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

Lighter +40%#D93F2D

Lighter +30%#B22F21

Lighter +20%#872419

Lighter +10%#5C1811

Darker −10%#060201

Darker −20%#000000

Darker −30%#000000

Darker −40%#000000

More saturated +25%#380702

Less saturated −25%#2A1310

Channel breakdown

R49

G13

Red49 (19.2%)

Green13 (5.1%)

Blue9 (3.5%)

Hue6°

Saturation (HSL)68.97%

Lightness11.37%

Dominant channelRed

Hex per channelR 31 · G 0D · B 09

Keep nerding

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

#310D09

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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