Recognised as Colour

#370D16

#370D16
Red
Dark
Nearest: Black

#370D16 is a red with RGB values 55, 13, 22 and HSL 347°, 62%, 13%. It is a dark colour, so white text on it reaches 17.1:1 contrast (AAA for normal text). The nearest named colour is Black.

Colour values

#370D16#370D16

HEX#370D16

RGBrgb(55, 13, 22)

RGB (0–1)0.2157, 0.051, 0.0863

RGB percentages21.6%, 5.1%, 8.6%

HSLhsl(347.1, 61.8%, 13.3%)

HSV / HSBhsv(347.1, 76.4%, 21.6%)

CMYK0%, 76.4%, 60%, 78.4%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer3,607,830

CSS custom property--colour: #370D16;

Brightness & contrast

Relative luminance0.01158WCAG 2.x, 0 is black and 1 is white

Perceived brightness32.5 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 17.05:1

Contrast with white17.05:1WCAG normal text: AAA

Contrast with black1.23:1WCAG normal text: Fail

Greyscale equivalent#171717

Inverted#C8F2E9

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#171716no red cones; affects about 1% of men; ΔE 22.5 from the original

Deuteranopia#221F15no green cones; the most common form, about 1% of men; ΔE 22.5 from the original

Tritanopia#3D0611no blue cones; rare, and affects men and women equally; ΔE 6.2 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text17.05:1WCAG large text: AAA

Contrast with black, large text1.23:1WCAG large text: Fail

Named colours

Black · ΔE 24.5 Dark slate grey · ΔE 40.4 Dim grey · ΔE 40.8 Maroon · ΔE 44.9 Saddle brown · ΔE 45.4 Sienna · ΔE 46.1

Nearest named CSS colourBlack (#000000)ΔE 24.53, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#0D372E

Analogous#370D2B, #37190D

Triadic#16370D, #0D1637

Split complementary#0D3719, #0D2B37

Tetradic#2B370D, #0D372E, #190D37

Tints, shades & saturation

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

Lighter +40%#D23E5E

Lighter +30%#B32A48

Lighter +20%#8A2037

Lighter +10%#601727

Darker −10%#0E0306

Darker −20%#000000

Darker −30%#000000

Darker −40%#000000

More saturated +25%#400511

Less saturated −25%#2F151B

Channel breakdown

R55

G13

B22

Red55 (21.6%)

Green13 (5.1%)

Blue22 (8.6%)

Hue347.14°

Saturation (HSL)61.76%

Lightness13.33%

Dominant channelRed

Hex per channelR 37 · G 0D · B 16

Keep nerding

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

#370D16

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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