Recognised as Colour

#3F090A

#3F090A
Red
Dark
Nearest: Black

#3F090A is a red with RGB values 63, 9, 10 and HSL 359°, 75%, 14%. It is a dark colour, so white text on it reaches 16.7:1 contrast (AAA for normal text). The nearest named colour is Black.

Colour values

#3F090A#3F090A

HEX#3F090A

RGBrgb(63, 9, 10)

RGB (0–1)0.2471, 0.0353, 0.0392

RGB percentages24.7%, 3.5%, 3.9%

HSLhsl(358.9, 75%, 14.1%)

HSV / HSBhsv(358.9, 85.7%, 24.7%)

CMYK0%, 85.7%, 84.1%, 75.3%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer4,131,082

CSS custom property--colour: #3F090A;

Brightness & contrast

Relative luminance0.01274WCAG 2.x, 0 is black and 1 is white

Perceived brightness35.3 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 16.74:1

Contrast with white16.74:1WCAG normal text: AAA

Contrast with black1.25:1WCAG normal text: Fail

Greyscale equivalent#151515

Inverted#C0F6F5

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#191609no red cones; affects about 1% of men; ΔE 27.7 from the original

Deuteranopia#272208no green cones; the most common form, about 1% of men; ΔE 27.7 from the original

Tritanopia#46000Ano blue cones; rare, and affects men and women equally; ΔE 6.3 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text16.74:1WCAG large text: AAA

Contrast with black, large text1.25:1WCAG large text: Fail

Named colours

Black · ΔE 31 Maroon · ΔE 36.4 Saddle brown · ΔE 38.3 Brown · ΔE 39.7 Sienna · ΔE 39.8 Dark red · ΔE 41.4

Nearest named CSS colourBlack (#000000)ΔE 30.98, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#093F3E

Analogous#3F0925, #3F2309

Triadic#0A3F09, #090A3F

Split complementary#093F23, #09253F

Tetradic#253F09, #093F3E, #23093F

Tints, shades & saturation

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

Lighter +40%#E23235

Lighter +30%#C51C1F

Lighter +20%#981618

Lighter +10%#6C0F11

Darker −10%#120303

Darker −20%#000000

Darker −30%#000000

Darker −40%#000000

More saturated +25%#480001

Less saturated −25%#361213

Channel breakdown

R63

B10

Red63 (24.7%)

Green9 (3.5%)

Blue10 (3.9%)

Hue358.89°

Saturation (HSL)75%

Lightness14.12%

Dominant channelRed

Hex per channelR 3F · G 09 · B 0A

Keep nerding

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

#3F090A

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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