Colour

#37001C

#37001C
Magenta
Dark
Nearest: Black

#37001C is a magenta with RGB values 55, 0, 28 and HSL 329°, 100%, 11%. It is a dark colour, so white text on it reaches 17.8:1 contrast (AAA for normal text). The nearest named colour is Black.

Colour values

#37001C#37001C

HEX#37001C

RGBrgb(55, 0, 28)

RGB (0–1)0.2157, 0, 0.1098

RGB percentages21.6%, 0%, 11%

HSLhsl(329.5, 100%, 10.8%)

HSV / HSBhsv(329.5, 100%, 21.6%)

CMYK0%, 100%, 49.1%, 78.4%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer3,604,508

CSS custom property--colour: #37001C;

Brightness & contrast

Relative luminance0.00896WCAG 2.x, 0 is black and 1 is white

Perceived brightness31.5 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 17.81:1

Contrast with white17.81:1WCAG normal text: AAA

Contrast with black1.18:1WCAG normal text: Fail

Greyscale equivalent#0E0E0E

Inverted#C8FFE3

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#0B111Dno red cones; affects about 1% of men; ΔE 28.7 from the original

Deuteranopia#1C1B1Bno green cones; the most common form, about 1% of men; ΔE 28.8 from the original

Tritanopia#3C000Cno blue cones; rare, and affects men and women equally; ΔE 11.8 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text17.81:1WCAG large text: AAA

Contrast with black, large text1.18:1WCAG large text: Fail

Named colours

Black · ΔE 30.3 Dark slateblue · ΔE 45.6 Dim grey · ΔE 46.6 Dark slate grey · ΔE 46.9 Midnight blue · ΔE 47.6 Maroon · ΔE 48.2

Nearest named CSS colourBlack (#000000)ΔE 30.27, a distinctly different colour

Hue familymagenta

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#00371B

Analogous#370037, #370000

Triadic#1C3700, #001C37

Split complementary#013700, #003737

Tetradic#373600, #00371B, #000037

Tints, shades & saturation

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

Lighter +40%#FF0484

Lighter +30%#D0006A

Lighter +20%#9D0050

Lighter +10%#6A0036

Darker −10%#040002

Darker −20%#000000

Darker −30%#000000

Darker −40%#000000

More saturated +25%#37001C

Less saturated −25%#30071C

Channel breakdown

R55

B28

Red55 (21.6%)

Green0 (0%)

Blue28 (11%)

Hue329.45°

Saturation (HSL)100%

Lightness10.78%

Dominant channelRed

Hex per channelR 37 · G 00 · B 1C

Keep nerding

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#37001C

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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