Colour

#23001B

#23001B
Magenta
Dark
Nearest: Black

#23001B is a magenta with RGB values 35, 0, 27 and HSL 314°, 100%, 7%. It is a dark colour, so white text on it reaches 19.3:1 contrast (AAA for normal text). The nearest named colour is Black.

Colour values

#23001B#23001B

HEX#23001B

RGBrgb(35, 0, 27)

RGB (0–1)0.1373, 0, 0.1059

RGB percentages13.7%, 0%, 10.6%

HSLhsl(313.7, 100%, 6.9%)

HSV / HSBhsv(313.7, 100%, 13.7%)

CMYK0%, 100%, 22.9%, 86.3%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer2,293,787

CSS custom property--colour: #23001B;

Brightness & contrast

Relative luminance0.00436WCAG 2.x, 0 is black and 1 is white

Perceived brightness21.2 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 19.31:1

Contrast with white19.31:1WCAG normal text: AAA

Contrast with black1.09:1WCAG normal text: Fail

Greyscale equivalent#090909

Inverted#DCFFE4

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#010A1Cno red cones; affects about 1% of men; ΔE 18.2 from the original

Deuteranopia#0C101Ano green cones; the most common form, about 1% of men; ΔE 18.5 from the original

Tritanopia#26010Bno blue cones; rare, and affects men and women equally; ΔE 10.6 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text19.31:1WCAG large text: AAA

Contrast with black, large text1.09:1WCAG large text: Fail

Named colours

Black · ΔE 21.6 Dark slate grey · ΔE 41.7 Dark slateblue · ΔE 43.5 Midnight blue · ΔE 44.5 Dim grey · ΔE 45.7 Slate grey · ΔE 53.5

Nearest named CSS colourBlack (#000000)ΔE 21.6, a distinctly different colour

Hue familymagenta

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#002308

Analogous#1A0023, #230009

Triadic#1B2300, #001B23

Split complementary#0A2300, #00231A

Tetradic#231A00, #002308, #000923

Tints, shades & saturation

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

Lighter +40%#EF00B8

Lighter +30%#BC0091

Lighter +20%#89006A

Lighter +10%#560042

Darker −10%#000000

Darker −20%#000000

Darker −30%#000000

Darker −40%#000000

More saturated +25%#23001B

Less saturated −25%#1F0419

Channel breakdown

R35

B27

Red35 (13.7%)

Green0 (0%)

Blue27 (10.6%)

Hue313.71°

Saturation (HSL)100%

Lightness6.86%

Dominant channelRed

Hex per channelR 23 · G 00 · B 1B

Keep nerding

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#23001B

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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