Colour

#3F031D

#3F031D
Red
Dark
Nearest: Black

#3F031D is a red with RGB values 63, 3, 29 and HSL 334°, 91%, 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

#3F031D#3F031D

HEX#3F031D

RGBrgb(63, 3, 29)

RGB (0–1)0.2471, 0.0118, 0.1137

RGB percentages24.7%, 1.2%, 11.4%

HSLhsl(334, 90.9%, 12.9%)

HSV / HSBhsv(334, 95.2%, 24.7%)

CMYK0%, 95.2%, 54%, 75.3%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer4,129,565

CSS custom property--colour: #3F031D;

Brightness & contrast

Relative luminance0.01211WCAG 2.x, 0 is black and 1 is white

Perceived brightness35.9 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 16.91:1

Contrast with white16.91:1WCAG normal text: AAA

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

Greyscale equivalent#121212

Inverted#C0FCE2

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#12151Eno red cones; affects about 1% of men; ΔE 29.8 from the original

Deuteranopia#22211Cno green cones; the most common form, about 1% of men; ΔE 30.8 from the original

Tritanopia#45000Fno blue cones; rare, and affects men and women equally; ΔE 11 from the original

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

Contrast with white, large text16.91:1WCAG large text: AAA

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

Named colours

Black · ΔE 31.7 Maroon · ΔE 44.3 Brown · ΔE 44.9 Dim grey · ΔE 45.1 Dark slate grey · ΔE 46.6 Dark slateblue · ΔE 47.3

Nearest named CSS colourBlack (#000000)ΔE 31.74, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#033F25

Analogous#3F033B, #3F0703

Triadic#1D3F03, #031D3F

Split complementary#033F07, #033B3F

Tetradic#3B3F03, #033F25, #07033F

Tints, shades & saturation

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

Lighter +40%#F41A78

Lighter +30%#D10A60

Lighter +20%#A0084A

Lighter +10%#700533

Darker −10%#0E0107

Darker −20%#000000

Darker −30%#000000

Darker −40%#000000

More saturated +25%#42001D

Less saturated −25%#370B1E

Channel breakdown

R63

B29

Red63 (24.7%)

Green3 (1.2%)

Blue29 (11.4%)

Hue334°

Saturation (HSL)90.91%

Lightness12.94%

Dominant channelRed

Hex per channelR 3F · G 03 · B 1D

Keep nerding

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

#3F031D

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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