Recognised as Colour

#37050D

#37050D
Red
Dark
Nearest: Black

#37050D is a red with RGB values 55, 5, 13 and HSL 350°, 83%, 12%. It is a dark colour, so white text on it reaches 17.6:1 contrast (AAA for normal text). The nearest named colour is Black.

Colour values

#37050D#37050D

HEX#37050D

RGBrgb(55, 5, 13)

RGB (0–1)0.2157, 0.0196, 0.051

RGB percentages21.6%, 2%, 5.1%

HSLhsl(350.4, 83.3%, 11.8%)

HSV / HSBhsv(350.4, 90.9%, 21.6%)

CMYK0%, 90.9%, 76.4%, 78.4%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer3,605,773

CSS custom property--colour: #37050D;

Brightness & contrast

Relative luminance0.0095WCAG 2.x, 0 is black and 1 is white

Perceived brightness30.6 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 17.65:1

Contrast with white17.65:1WCAG normal text: AAA

Contrast with black1.19:1WCAG normal text: Fail

Greyscale equivalent#101010

Inverted#C8FAF2

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#13120Dno red cones; affects about 1% of men; ΔE 26.2 from the original

Deuteranopia#201C0Cno green cones; the most common form, about 1% of men; ΔE 26.1 from the original

Tritanopia#3D0008no blue cones; rare, and affects men and women equally; ΔE 5.3 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text17.65:1WCAG large text: AAA

Contrast with black, large text1.19:1WCAG large text: Fail

Named colours

Black · ΔE 27.5 Maroon · ΔE 41.6 Saddle brown · ΔE 43.9 Brown · ΔE 44.3 Dim grey · ΔE 44.4 Dark slate grey · ΔE 44.7

Nearest named CSS colourBlack (#000000)ΔE 27.54, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#05372F

Analogous#370526, #371605

Triadic#0D3705, #050D37

Split complementary#053716, #052637

Tetradic#263705, #05372F, #160537

Tints, shades & saturation

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

Lighter +40%#EB1E3E

Lighter +30%#C3122E

Lighter +20%#940E23

Lighter +10%#660918

Darker −10%#080102

Darker −20%#000000

Darker −30%#000000

Darker −40%#000000

More saturated +25%#3C000A

Less saturated −25%#2F0D12

Channel breakdown

R55

B13

Red55 (21.6%)

Green5 (2%)

Blue13 (5.1%)

Hue350.4°

Saturation (HSL)83.33%

Lightness11.76%

Dominant channelRed

Hex per channelR 37 · G 05 · B 0D

Keep nerding

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#37050D

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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