Colour

#2A0004

#2A0004
Red
Dark
Nearest: Black

#2A0004 is a red with RGB values 42, 0, 4 and HSL 354°, 100%, 8%. It is a dark colour, so white text on it reaches 19.1:1 contrast (AAA for normal text). The nearest named colour is Black.

Colour values

#2A0004#2A0004

HEX#2A0004

RGBrgb(42, 0, 4)

RGB (0–1)0.1647, 0, 0.0157

RGB percentages16.5%, 0%, 1.6%

HSLhsl(354.3, 100%, 8.2%)

HSV / HSBhsv(354.3, 100%, 16.5%)

CMYK0%, 100%, 90.5%, 83.5%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer2,752,516

CSS custom property--colour: #2A0004;

Brightness & contrast

Relative luminance0.00501WCAG 2.x, 0 is black and 1 is white

Perceived brightness23 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 19.09:1

Contrast with white19.09:1WCAG normal text: AAA

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

Greyscale equivalent#090909

Inverted#D5FFFB

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#0B0904no red cones; affects about 1% of men; ΔE 20.8 from the original

Deuteranopia#161303no green cones; the most common form, about 1% of men; ΔE 21.6 from the original

Tritanopia#2F0002no blue cones; rare, and affects men and women equally; ΔE 3.9 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text19.09:1WCAG large text: AAA

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

Named colours

Black · ΔE 21.5 Dark slate grey · ΔE 42.7 Dim grey · ΔE 45.1 Maroon · ΔE 47.7 Saddle brown · ΔE 48.8 Sienna · ΔE 50.3

Nearest named CSS colourBlack (#000000)ΔE 21.45, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#002A26

Analogous#2A0019, #2A1100

Triadic#042A00, #00042A

Split complementary#002A11, #00192A

Tetradic#192A00, #002A26, #11002A

Tints, shades & saturation

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

Lighter +40%#F60017

Lighter +30%#C30013

Lighter +20%#90000E

Lighter +10%#5D0009

Darker −10%#000000

Darker −20%#000000

Darker −30%#000000

Darker −40%#000000

More saturated +25%#2A0004

Less saturated −25%#250508

Channel breakdown

R42

Red42 (16.5%)

Green0 (0%)

Blue4 (1.6%)

Hue354.29°

Saturation (HSL)100%

Lightness8.24%

Dominant channelRed

Hex per channelR 2A · G 00 · B 04

Keep nerding

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#2A0004

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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