Colour

#31455D

#31455D
Blue
Dark
Nearest: Dark slate grey

#31455D is a blue with RGB values 49, 69, 93 and HSL 213°, 31%, 28%. It is a dark colour, so white text on it reaches 9.8:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.

Colour values

#31455D#31455D

HEX#31455D

RGBrgb(49, 69, 93)

RGB (0–1)0.1922, 0.2706, 0.3647

RGB percentages19.2%, 27.1%, 36.5%

HSLhsl(212.7, 31%, 27.8%)

HSV / HSBhsv(212.7, 47.3%, 36.5%)

CMYK47.3%, 25.8%, 0%, 63.5%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer3,229,021

CSS custom property--colour: #31455D;

Brightness & contrast

Relative luminance0.057WCAG 2.x, 0 is black and 1 is white

Perceived brightness67.1 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 9.81:1

Contrast with white9.81:1WCAG normal text: AAA

Contrast with black2.14:1WCAG normal text: Fail

Greyscale equivalent#424242

Inverted#CEBAA2

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#3C465Eno red cones; affects about 1% of men; ΔE 3.5 from the original

Deuteranopia#37425Dno green cones; the most common form, about 1% of men; ΔE 3.9 from the original

Tritanopia#204A4Dno blue cones; rare, and affects men and women equally; ΔE 16.7 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text9.81:1WCAG large text: AAA

Contrast with black, large text2.14:1WCAG large text: Fail

Named colours

Dark slate grey · ΔE 17.3 Dim grey · ΔE 23 Slate grey · ΔE 25 Light slate grey · ΔE 27.9 Steel blue · ΔE 28.7 Gray · ΔE 30

Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 17.29, a distinctly different colour

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#5D4931

Analogous#315B5D, #33315D

Triadic#5D3145, #455D31

Split complementary#5D3331, #5B5D31

Tetradic#5D315B, #5D4931, #315D33

Tints, shades & saturation

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

Lighter +40%#94ABC6

Lighter +30%#7290B5

Lighter +20%#5477A0

Lighter +10%#435E7E

Darker −10%#1F2C3C

Darker −20%#0E131A

Darker −30%#000000

Darker −40%#000000

More saturated +25%#1F436F

Less saturated −25%#43474B

Channel breakdown

R49

G69

B93

Red49 (19.2%)

Green69 (27.1%)

Blue93 (36.5%)

Hue212.73°

Saturation (HSL)30.99%

Lightness27.84%

Dominant channelBlue

Hex per channelR 31 · G 45 · B 5D

Keep nerding

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

#31455D

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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