Colour

#33161D

#33161D
Red
Dark
Nearest: Black

#33161D is a red with RGB values 51, 22, 29 and HSL 346°, 40%, 14%. It is a dark colour, so white text on it reaches 16.5:1 contrast (AAA for normal text). The nearest named colour is Black.

Colour values

#33161D#33161D

HEX#33161D

RGBrgb(51, 22, 29)

RGB (0–1)0.2, 0.0863, 0.1137

RGB percentages20%, 8.6%, 11.4%

HSLhsl(345.5, 39.7%, 14.3%)

HSV / HSBhsv(345.5, 56.9%, 20%)

CMYK0%, 56.9%, 43.1%, 80%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer3,347,997

CSS custom property--colour: #33161D;

Brightness & contrast

Relative luminance0.01366WCAG 2.x, 0 is black and 1 is white

Perceived brightness34 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 16.49:1

Contrast with white16.49:1WCAG normal text: AAA

Contrast with black1.27:1WCAG normal text: Fail

Greyscale equivalent#1D1D1D

Inverted#CCE9E2

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#1B1C1Dno red cones; affects about 1% of men; ΔE 16 from the original

Deuteranopia#22211Cno green cones; the most common form, about 1% of men; ΔE 16.3 from the original

Tritanopia#371319no blue cones; rare, and affects men and women equally; ΔE 4.3 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text16.49:1WCAG large text: AAA

Contrast with black, large text1.27:1WCAG large text: Fail

Named colours

Black · ΔE 19.6 Dark slate grey · ΔE 34 Dim grey · ΔE 36.2 Gray · ΔE 44.7 Slate grey · ΔE 46.4 Saddle brown · ΔE 48.1

Nearest named CSS colourBlack (#000000)ΔE 19.55, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#16332C

Analogous#33162B, #331D16

Triadic#1D3316, #161D33

Split complementary#16331E, #162B33

Tetradic#2C3316, #16332C, #1E1633

Tints, shades & saturation

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

Lighter +40%#B95C73

Lighter +30%#9E445A

Lighter +20%#7A3546

Lighter +10%#572531

Darker −10%#0F0709

Darker −20%#000000

Darker −30%#000000

Darker −40%#000000

More saturated +25%#3C0D18

Less saturated −25%#2A1F22

Channel breakdown

R51

G22

B29

Red51 (20%)

Green22 (8.6%)

Blue29 (11.4%)

Hue345.52°

Saturation (HSL)39.73%

Lightness14.31%

Dominant channelRed

Hex per channelR 33 · G 16 · B 1D

Keep nerding

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#33161D

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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