Colour

#3F1D1B

#3F1D1B
Red
Dark
Nearest: Black

#3F1D1B is a red with RGB values 63, 29, 27 and HSL 3°, 40%, 18%. It is a dark colour, so white text on it reaches 15:1 contrast (AAA for normal text). The nearest named colour is Black.

Colour values

#3F1D1B#3F1D1B

HEX#3F1D1B

RGBrgb(63, 29, 27)

RGB (0–1)0.2471, 0.1137, 0.1059

RGB percentages24.7%, 11.4%, 10.6%

HSLhsl(3.3, 40%, 17.6%)

HSV / HSBhsv(3.3, 57.1%, 24.7%)

CMYK0%, 54%, 57.1%, 75.3%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer4,136,219

CSS custom property--colour: #3F1D1B;

Brightness & contrast

Relative luminance0.02015WCAG 2.x, 0 is black and 1 is white

Perceived brightness42 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 14.97:1

Contrast with white14.97:1WCAG normal text: AAA

Contrast with black1.4:1WCAG normal text: Fail

Greyscale equivalent#242424

Inverted#C0E2E4

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#25231Bno red cones; affects about 1% of men; ΔE 17.5 from the original

Deuteranopia#2D2A1Ano green cones; the most common form, about 1% of men; ΔE 18.2 from the original

Tritanopia#45181Dno blue cones; rare, and affects men and women equally; ΔE 6.1 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text14.97:1WCAG large text: AAA

Contrast with black, large text1.4:1WCAG large text: Fail

Named colours

Black · ΔE 24.2 Dim grey · ΔE 34.3 Dark slate grey · ΔE 34.5 Saddle brown · ΔE 40.2 Sienna · ΔE 41 Gray · ΔE 42.3

Nearest named CSS colourBlack (#000000)ΔE 24.21, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#1B3D3F

Analogous#3F1B2B, #3F2F1B

Triadic#1B3F1D, #1D1B3F

Split complementary#1B3F2F, #1B2B3F

Tetradic#2B3F1B, #1B3D3F, #2F1B3F

Tints, shades & saturation

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

Lighter +40%#BE6D68

Lighter +30%#AA4E49

Lighter +20%#863E3A

Lighter +10%#632D2A

Darker −10%#1B0D0C

Darker −20%#000000

Darker −30%#000000

Darker −40%#000000

More saturated +25%#4A1310

Less saturated −25%#342726

Channel breakdown

R63

G29

B27

Red63 (24.7%)

Green29 (11.4%)

Blue27 (10.6%)

Hue3.33°

Saturation (HSL)40%

Lightness17.65%

Dominant channelRed

Hex per channelR 3F · G 1D · B 1B

Keep nerding

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

#3F1D1B

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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