Colour

#311D23

#311D23
Red
Dark
Nearest: Black

#311D23 is a red with RGB values 49, 29, 35 and HSL 342°, 26%, 15%. It is a dark colour, so white text on it reaches 15.8:1 contrast (AAA for normal text). The nearest named colour is Black.

Colour values

#311D23#311D23

HEX#311D23

RGBrgb(49, 29, 35)

RGB (0–1)0.1922, 0.1137, 0.1373

RGB percentages19.2%, 11.4%, 13.7%

HSLhsl(342, 25.6%, 15.3%)

HSV / HSBhsv(342, 40.8%, 19.2%)

CMYK0%, 40.8%, 28.6%, 80.8%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer3,218,723

CSS custom property--colour: #311D23;

Brightness & contrast

Relative luminance0.01653WCAG 2.x, 0 is black and 1 is white

Perceived brightness36.8 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 15.78:1

Contrast with white15.78:1WCAG normal text: AAA

Contrast with black1.33:1WCAG normal text: Fail

Greyscale equivalent#222222

Inverted#CEE2DC

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#202123no red cones; affects about 1% of men; ΔE 11 from the original

Deuteranopia#242423no green cones; the most common form, about 1% of men; ΔE 11.2 from the original

Tritanopia#341C1Fno blue cones; rare, and affects men and women equally; ΔE 3.3 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text15.78:1WCAG large text: AAA

Contrast with black, large text1.33:1WCAG large text: Fail

Named colours

Black · ΔE 17.4 Dark slate grey · ΔE 28.9 Dim grey · ΔE 32.7 Gray · ΔE 41.5 Slate grey · ΔE 42.7 Light slate grey · ΔE 45.7

Nearest named CSS colourBlack (#000000)ΔE 17.38, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#1D312B

Analogous#311D2D, #31211D

Triadic#23311D, #1D2331

Split complementary#1D3121, #1D2D31

Tetradic#2D311D, #1D312B, #211D31

Tints, shades & saturation

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

Lighter +40%#AA7081

Lighter +30%#915668

Lighter +20%#714351

Lighter +10%#51303A

Darker −10%#110A0C

Darker −20%#000000

Darker −30%#000000

Darker −40%#000000

More saturated +25%#3B131F

Less saturated −25%#272727

Channel breakdown

R49

G29

B35

Red49 (19.2%)

Green29 (11.4%)

Blue35 (13.7%)

Hue342°

Saturation (HSL)25.64%

Lightness15.29%

Dominant channelRed

Hex per channelR 31 · G 1D · B 23

Keep nerding

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

#311D23

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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