Colour

#31374A

#31374A
Blue
Dark
Nearest: Dark slate grey

#31374A is a blue with RGB values 49, 55, 74 and HSL 226°, 20%, 24%. It is a dark colour, so white text on it reaches 11.8:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.

Colour values

#31374A#31374A

HEX#31374A

RGBrgb(49, 55, 74)

RGB (0–1)0.1922, 0.2157, 0.2902

RGB percentages19.2%, 21.6%, 29%

HSLhsl(225.6, 20.3%, 24.1%)

HSV / HSBhsv(225.6, 33.8%, 29%)

CMYK33.8%, 25.7%, 0%, 71%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer3,225,418

CSS custom property--colour: #31374A;

Brightness & contrast

Relative luminance0.0388WCAG 2.x, 0 is black and 1 is white

Perceived brightness55.8 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 11.82:1

Contrast with white11.82:1WCAG normal text: AAA

Contrast with black1.78:1WCAG normal text: Fail

Greyscale equivalent#373737

Inverted#CEC8B5

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#31394Bno red cones; affects about 1% of men; ΔE 1.3 from the original

Deuteranopia#2F364Ano green cones; the most common form, about 1% of men; ΔE 0.9 from the original

Tritanopia#2A3B3Dno blue cones; rare, and affects men and women equally; ΔE 12.7 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text11.82:1WCAG large text: AAA

Contrast with black, large text1.78:1WCAG large text: Fail

Named colours

Dark slate grey · ΔE 18.7 Dim grey · ΔE 24.7 Black · ΔE 26.6 Slate grey · ΔE 30 Gray · ΔE 32.9 Light slate grey · ΔE 33.1

Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 18.69, a distinctly different colour

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#4A4431

Analogous#31444A, #38314A

Triadic#4A3137, #374A31

Split complementary#4A3831, #444A31

Tetradic#4A3143, #4A4431, #314A38

Tints, shades & saturation

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

Lighter +40%#919AB6

Lighter +30%#727EA2

Lighter +20%#5A6587

Lighter +10%#454E69

Darker −10%#1D202B

Darker −20%#08090D

Darker −30%#000000

Darker −40%#000000

More saturated +25%#222F59

Less saturated −25%#3E3E3E

Channel breakdown

R49

G55

B74

Red49 (19.2%)

Green55 (21.6%)

Blue74 (29%)

Hue225.6°

Saturation (HSL)20.33%

Lightness24.12%

Dominant channelBlue

Hex per channelR 31 · G 37 · B 4A

Keep nerding

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

#31374A

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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