Colour

#2B0004

#2B0004
Red
Dark
Nearest: Black

#2B0004 is a red with RGB values 43, 0, 4 and HSL 354°, 100%, 8%. It is a dark colour, so white text on it reaches 19:1 contrast (AAA for normal text). The nearest named colour is Black.

Colour values

#2B0004#2B0004

HEX#2B0004

RGBrgb(43, 0, 4)

RGB (0–1)0.1686, 0, 0.0157

RGB percentages16.9%, 0%, 1.6%

HSLhsl(354.4, 100%, 8.4%)

HSV / HSBhsv(354.4, 100%, 16.9%)

CMYK0%, 100%, 90.7%, 83.1%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer2,818,052

CSS custom property--colour: #2B0004;

Brightness & contrast

Relative luminance0.00522WCAG 2.x, 0 is black and 1 is white

Perceived brightness23.6 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 19.01:1

Contrast with white19.01:1WCAG normal text: AAA

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

Greyscale equivalent#090909

Inverted#D4FFFB

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#0B0A04no red cones; affects about 1% of men; ΔE 21.9 from the original

Deuteranopia#171403no green cones; the most common form, about 1% of men; ΔE 22.5 from the original

Tritanopia#300002no 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 text19.01:1WCAG large text: AAA

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

Named colours

Black · ΔE 22.2 Dark slate grey · ΔE 43.1 Dim grey · ΔE 45.2 Maroon · ΔE 47 Saddle brown · ΔE 48.4 Sienna · ΔE 49.9

Nearest named CSS colourBlack (#000000)ΔE 22.22, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#002B27

Analogous#2B0019, #2B1200

Triadic#042B00, #00042B

Split complementary#002B12, #00192B

Tetradic#192B00, #002B27, #12002B

Tints, shades & saturation

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

Lighter +40%#F70017

Lighter +30%#C40012

Lighter +20%#91000D

Lighter +10%#5E0009

Darker −10%#000000

Darker −20%#000000

Darker −30%#000000

Darker −40%#000000

More saturated +25%#2B0004

Less saturated −25%#260508

Channel breakdown

R43

Red43 (16.9%)

Green0 (0%)

Blue4 (1.6%)

Hue354.42°

Saturation (HSL)100%

Lightness8.43%

Dominant channelRed

Hex per channelR 2B · G 00 · B 04

Keep nerding

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#2B0004

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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