Colour

#31130F

#31130F
Red
Dark
Nearest: Black

#31130F is a red with RGB values 49, 19, 15 and HSL 7°, 53%, 13%. It is a dark colour, so white text on it reaches 17.1:1 contrast (AAA for normal text). The nearest named colour is Black.

Colour values

#31130F#31130F

HEX#31130F

RGBrgb(49, 19, 15)

RGB (0–1)0.1922, 0.0745, 0.0588

RGB percentages19.2%, 7.5%, 5.9%

HSLhsl(7.1, 53.1%, 12.5%)

HSV / HSBhsv(7.1, 69.4%, 19.2%)

CMYK0%, 61.2%, 69.4%, 80.8%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer3,216,143

CSS custom property--colour: #31130F;

Brightness & contrast

Relative luminance0.01153WCAG 2.x, 0 is black and 1 is white

Perceived brightness30.9 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 17.06:1

Contrast with white17.06:1WCAG normal text: AAA

Contrast with black1.23:1WCAG normal text: Fail

Greyscale equivalent#191919

Inverted#CEECF0

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#1A180Fno red cones; affects about 1% of men; ΔE 16.2 from the original

Deuteranopia#221E0Eno green cones; the most common form, about 1% of men; ΔE 16 from the original

Tritanopia#360E12no blue cones; rare, and affects men and women equally; ΔE 5.8 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text17.06:1WCAG large text: AAA

Contrast with black, large text1.23:1WCAG large text: Fail

Named colours

Black · ΔE 20.2 Dark slate grey · ΔE 36.2 Dim grey · ΔE 38.4 Saddle brown · ΔE 43.5 Sienna · ΔE 45.2 Maroon · ΔE 46.6

Nearest named CSS colourBlack (#000000)ΔE 20.17, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#0F2D31

Analogous#310F1C, #31240F

Triadic#0F3113, #130F31

Split complementary#0F3124, #0F1C31

Tetradic#1C310F, #0F2D31, #240F31

Tints, shades & saturation

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

Lighter +40%#C65546

Lighter +30%#A64033

Lighter +20%#7F3127

Lighter +10%#58221B

Darker −10%#0A0403

Darker −20%#000000

Darker −30%#000000

Darker −40%#000000

More saturated +25%#390D07

Less saturated −25%#291917

Channel breakdown

R49

G19

B15

Red49 (19.2%)

Green19 (7.5%)

Blue15 (5.9%)

Hue7.06°

Saturation (HSL)53.13%

Lightness12.55%

Dominant channelRed

Hex per channelR 31 · G 13 · B 0F

Keep nerding

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

#31130F

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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