Recognised as Colour

#371D29

#371D29
Red
Dark
Nearest: Black

#371D29 is a red with RGB values 55, 29, 41 and HSL 332°, 31%, 16%. It is a dark colour, so white text on it reaches 15.3:1 contrast (AAA for normal text). The nearest named colour is Black.

Colour values

#371D29#371D29

HEX#371D29

RGBrgb(55, 29, 41)

RGB (0–1)0.2157, 0.1137, 0.1608

RGB percentages21.6%, 11.4%, 16.1%

HSLhsl(332.3, 31%, 16.5%)

HSV / HSBhsv(332.3, 47.3%, 21.6%)

CMYK0%, 47.3%, 25.5%, 78.4%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer3,611,945

CSS custom property--colour: #371D29;

Brightness & contrast

Relative luminance0.01851WCAG 2.x, 0 is black and 1 is white

Perceived brightness39.9 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 15.33:1

Contrast with white15.33:1WCAG normal text: AAA

Contrast with black1.37:1WCAG normal text: Fail

Greyscale equivalent#232323

Inverted#C8E2D6

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#202229no red cones; affects about 1% of men; ΔE 14 from the original

Deuteranopia#262728no green cones; the most common form, about 1% of men; ΔE 15.1 from the original

Tritanopia#3B1C21no blue cones; rare, and affects men and women equally; ΔE 6.1 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text15.33:1WCAG large text: AAA

Contrast with black, large text1.37:1WCAG large text: Fail

Named colours

Black · ΔE 21 Dark slate grey · ΔE 31.2 Dim grey · ΔE 33.3 Gray · ΔE 41.7 Slate grey · ΔE 42.5 Dark slateblue · ΔE 44.1

Nearest named CSS colourBlack (#000000)ΔE 20.96, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#1D372B

Analogous#371D36, #371E1D

Triadic#29371D, #1D2937

Split complementary#1D371E, #1D3637

Tetradic#36371D, #1D372B, #1E1D37

Tints, shades & saturation

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

Lighter +40%#B26E8D

Lighter +30%#9B5274

Lighter +20%#7A405B

Lighter +10%#582F42

Darker −10%#160B10

Darker −20%#000000

Darker −30%#000000

Darker −40%#000000

More saturated +25%#421228

Less saturated −25%#2D272A

Channel breakdown

R55

G29

B41

Red55 (21.6%)

Green29 (11.4%)

Blue41 (16.1%)

Hue332.31°

Saturation (HSL)30.95%

Lightness16.47%

Dominant channelRed

Hex per channelR 37 · G 1D · B 29

Keep nerding

Every link below is a page Nerdulator can generate from what it already knows about this value.

#371D29

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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