Colour

#42000C

#42000C
Red
Dark
Nearest: Black

#42000C is a red with RGB values 66, 0, 12 and HSL 349°, 100%, 13%. It is a dark colour, so white text on it reaches 17:1 contrast (AAA for normal text). The nearest named colour is Black.

Colour values

#42000C#42000C

HEX#42000C

RGBrgb(66, 0, 12)

RGB (0–1)0.2588, 0, 0.0471

RGB percentages25.9%, 0%, 4.7%

HSLhsl(349.1, 100%, 12.9%)

HSV / HSBhsv(349.1, 100%, 25.9%)

CMYK0%, 100%, 81.8%, 74.1%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer4,325,388

CSS custom property--colour: #42000C;

Brightness & contrast

Relative luminance0.01185WCAG 2.x, 0 is black and 1 is white

Perceived brightness36.3 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 16.98:1

Contrast with white16.98:1WCAG normal text: AAA

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

Greyscale equivalent#0F0F0F

Inverted#BDFFF3

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#15130Cno red cones; affects about 1% of men; ΔE 32.6 from the original

Deuteranopia#26210Ano green cones; the most common form, about 1% of men; ΔE 32.5 from the original

Tritanopia#4A0005no blue cones; rare, and affects men and women equally; ΔE 6.6 from the original

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

Contrast with white, large text16.98:1WCAG large text: AAA

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

Named colours

Black · ΔE 34.6 Maroon · ΔE 35 Brown · ΔE 38.1 Dark red · ΔE 40 Saddle brown · ΔE 40.2 Sienna · ΔE 41.2

Nearest named CSS colourBlack (#000000)ΔE 34.59, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#004236

Analogous#42002D, #421500

Triadic#0C4200, #000C42

Split complementary#004215, #002D42

Tetradic#2D4200, #004236, #150042

Tints, shades & saturation

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

Lighter +40%#FF0F3B

Lighter +30%#DB0028

Lighter +20%#A8001F

Lighter +10%#750015

Darker −10%#0F0003

Darker −20%#000000

Darker −30%#000000

Darker −40%#000000

More saturated +25%#42000C

Less saturated −25%#3A0811

Channel breakdown

R66

B12

Red66 (25.9%)

Green0 (0%)

Blue12 (4.7%)

Hue349.09°

Saturation (HSL)100%

Lightness12.94%

Dominant channelRed

Hex per channelR 42 · G 00 · B 0C

Keep nerding

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#42000C

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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