Colour

#313D59

#313D59
Blue
Dark
Nearest: Dark slate grey

#313D59 is a blue with RGB values 49, 61, 89 and HSL 222°, 29%, 27%. It is a dark colour, so white text on it reaches 10.8:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.

Colour values

#313D59#313D59

HEX#313D59

RGBrgb(49, 61, 89)

RGB (0–1)0.1922, 0.2392, 0.349

RGB percentages19.2%, 23.9%, 34.9%

HSLhsl(222, 29%, 27.1%)

HSV / HSBhsv(222, 44.9%, 34.9%)

CMYK44.9%, 31.5%, 0%, 65.1%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer3,226,969

CSS custom property--colour: #313D59;

Brightness & contrast

Relative luminance0.04712WCAG 2.x, 0 is black and 1 is white

Perceived brightness61.7 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 10.81:1

Contrast with white10.81:1WCAG normal text: AAA

Contrast with black1.94:1WCAG normal text: Fail

Greyscale equivalent#3C3C3C

Inverted#CEC2A6

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#333F5Ano red cones; affects about 1% of men; ΔE 1.1 from the original

Deuteranopia#2F3C58no green cones; the most common form, about 1% of men; ΔE 0.6 from the original

Tritanopia#234347no blue cones; rare, and affects men and women equally; ΔE 18.5 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text10.81:1WCAG large text: AAA

Contrast with black, large text1.94:1WCAG large text: Fail

Named colours

Dark slate grey · ΔE 21.7 Dim grey · ΔE 26.3 Slate grey · ΔE 28.6 Steel blue · ΔE 30.9 Light slate grey · ΔE 31.4 Black · ΔE 31.9

Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 21.71, a distinctly different colour

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#594D31

Analogous#315159, #393159

Triadic#59313D, #3D5931

Split complementary#593931, #515931

Tetradic#593151, #594D31, #315939

Tints, shades & saturation

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

Lighter +40%#93A1C3

Lighter +30%#7285B1

Lighter +20%#556A9B

Lighter +10%#43547A

Darker −10%#1F2638

Darker −20%#0D1017

Darker −30%#000000

Darker −40%#000000

More saturated +25%#20366A

Less saturated −25%#424448

Channel breakdown

R49

G61

B89

Red49 (19.2%)

Green61 (23.9%)

Blue89 (34.9%)

Hue222°

Saturation (HSL)28.99%

Lightness27.06%

Dominant channelBlue

Hex per channelR 31 · G 3D · B 59

Keep nerding

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

#313D59

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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