Recognised as Colour

#310F09

#310F09
Red
Dark
Nearest: Black

#310F09 is a red with RGB values 49, 15, 9 and HSL 9°, 69%, 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

#310F09#310F09

HEX#310F09

RGBrgb(49, 15, 9)

RGB (0–1)0.1922, 0.0588, 0.0353

RGB percentages19.2%, 5.9%, 3.5%

HSLhsl(9, 69%, 11.4%)

HSV / HSBhsv(9, 81.6%, 19.2%)

CMYK0%, 69.4%, 81.6%, 80.8%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer3,215,113

CSS custom property--colour: #310F09;

Brightness & contrast

Relative luminance0.01014WCAG 2.x, 0 is black and 1 is white

Perceived brightness29.3 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 17.46:1

Contrast with white17.46:1WCAG normal text: AAA

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

Greyscale equivalent#161616

Inverted#CEF0F6

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#181508no red cones; affects about 1% of men; ΔE 18.2 from the original

Deuteranopia#201C08no green cones; the most common form, about 1% of men; ΔE 18.4 from the original

Tritanopia#37080Eno blue cones; rare, and affects men and women equally; ΔE 7 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text17.46:1WCAG large text: AAA

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

Named colours

Black · ΔE 21.7 Dark slate grey · ΔE 38.8 Dim grey · ΔE 40.4 Saddle brown · ΔE 42.9 Sienna · ΔE 44.7 Maroon · ΔE 44.9

Nearest named CSS colourBlack (#000000)ΔE 21.73, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#092B31

Analogous#310917, #312309

Triadic#09310F, #0F0931

Split complementary#093123, #091731

Tetradic#173109, #092B31, #230931

Tints, shades & saturation

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

Lighter +40%#D9472D

Lighter +30%#B23721

Lighter +20%#872919

Lighter +10%#5C1C11

Darker −10%#060201

Darker −20%#000000

Darker −30%#000000

Darker −40%#000000

More saturated +25%#380A02

Less saturated −25%#2A1410

Channel breakdown

R49

G15

Red49 (19.2%)

Green15 (5.9%)

Blue9 (3.5%)

Hue9°

Saturation (HSL)68.97%

Lightness11.37%

Dominant channelRed

Hex per channelR 31 · G 0F · B 09

Keep nerding

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

#310F09

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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