Colour

#3F0002

#3F0002
Red
Dark
Nearest: Black

#3F0002 is a red with RGB values 63, 0, 2 and HSL 358°, 100%, 12%. It is a dark colour, so white text on it reaches 17.3:1 contrast (AAA for normal text). The nearest named colour is Black.

Colour values

#3F0002#3F0002

HEX#3F0002

RGBrgb(63, 0, 2)

RGB (0–1)0.2471, 0, 0.0078

RGB percentages24.7%, 0%, 0.8%

HSLhsl(358.1, 100%, 12.4%)

HSV / HSBhsv(358.1, 100%, 24.7%)

CMYK0%, 100%, 96.8%, 75.3%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer4,128,770

CSS custom property--colour: #3F0002;

Brightness & contrast

Relative luminance0.01061WCAG 2.x, 0 is black and 1 is white

Perceived brightness34.5 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 17.32:1

Contrast with white17.32:1WCAG normal text: AAA

Contrast with black1.21:1WCAG normal text: Fail

Greyscale equivalent#0E0E0E

Inverted#C0FFFD

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#151101no red cones; affects about 1% of men; ΔE 31.4 from the original

Deuteranopia#251F00no green cones; the most common form, about 1% of men; ΔE 31.4 from the original

Tritanopia#470001no blue cones; rare, and affects men and women equally; ΔE 4.8 from the original

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

Contrast with white, large text17.32:1WCAG large text: AAA

Contrast with black, large text1.21:1WCAG large text: Fail

Named colours

Black · ΔE 34.1 Maroon · ΔE 34.2 Brown · ΔE 38.2 Saddle brown · ΔE 38.9 Dark red · ΔE 39.3 Sienna · ΔE 40.5

Nearest named CSS colourBlack (#000000)ΔE 34.11, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#003F3D

Analogous#3F0022, #3F1D00

Triadic#023F00, #00023F

Split complementary#003F1D, #00223F

Tetradic#223F00, #003F3D, #1D003F

Tints, shades & saturation

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

Lighter +40%#FF0C14

Lighter +30%#D80007

Lighter +20%#A50005

Lighter +10%#720004

Darker −10%#0C0000

Darker −20%#000000

Darker −30%#000000

Darker −40%#000000

More saturated +25%#3F0002

Less saturated −25%#370809

Channel breakdown

R63

Red63 (24.7%)

Green0 (0%)

Blue2 (0.8%)

Hue358.1°

Saturation (HSL)100%

Lightness12.35%

Dominant channelRed

Hex per channelR 3F · G 00 · B 02

Keep nerding

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#3F0002

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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