Recognised as Colour

#3F021F

#3F021F
Red
Dark
Nearest: Black

#3F021F is a red with RGB values 63, 2, 31 and HSL 331°, 94%, 13%. It is a dark colour, so white text on it reaches 16.9:1 contrast (AAA for normal text). The nearest named colour is Black.

Colour values

#3F021F#3F021F

HEX#3F021F

RGBrgb(63, 2, 31)

RGB (0–1)0.2471, 0.0078, 0.1216

RGB percentages24.7%, 0.8%, 12.2%

HSLhsl(331.5, 93.8%, 12.7%)

HSV / HSBhsv(331.5, 96.8%, 24.7%)

CMYK0%, 96.8%, 50.8%, 75.3%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer4,129,311

CSS custom property--colour: #3F021F;

Brightness & contrast

Relative luminance0.01199WCAG 2.x, 0 is black and 1 is white

Perceived brightness36 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 16.94:1

Contrast with white16.94:1WCAG normal text: AAA

Contrast with black1.24:1WCAG normal text: Fail

Greyscale equivalent#111111

Inverted#C0FDE0

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#111520no red cones; affects about 1% of men; ΔE 30.1 from the original

Deuteranopia#22211Eno green cones; the most common form, about 1% of men; ΔE 31.1 from the original

Tritanopia#45000Fno blue cones; rare, and affects men and women equally; ΔE 12.5 from the original

Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning

Contrast with white, large text16.94:1WCAG large text: AAA

Contrast with black, large text1.24:1WCAG large text: Fail

Named colours

Black · ΔE 32.4 Maroon · ΔE 45.5 Dim grey · ΔE 45.6 Brown · ΔE 45.8 Dark slateblue · ΔE 45.9 Dark slate grey · ΔE 47.2

Nearest named CSS colourBlack (#000000)ΔE 32.36, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#023F22

Analogous#3F023D, #3F0402

Triadic#1F3F02, #021F3F

Split complementary#023F04, #023D3F

Tetradic#3D3F02, #023F22, #04023F

Tints, shades & saturation

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

Lighter +40%#F81581

Lighter +30%#D30768

Lighter +20%#A20550

Lighter +10%#700437

Darker −10%#0E0007

Darker −20%#000000

Darker −30%#000000

Darker −40%#000000

More saturated +25%#41001F

Less saturated −25%#370A1F

Channel breakdown

R63

B31

Red63 (24.7%)

Green2 (0.8%)

Blue31 (12.2%)

Hue331.48°

Saturation (HSL)93.85%

Lightness12.75%

Dominant channelRed

Hex per channelR 3F · G 02 · B 1F

Keep nerding

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

#3F021F

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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