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Colour

#313C56

  • #313C56
  • Blue
  • Dark
  • Nearest: Dark slate grey

#313C56 is a blue with RGB values 49, 60, 86 and HSL 222°, 27%, 26%. It is a dark colour, so white text on it reaches 11:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.

Colour values

#313C56#313C56
HEX#313C56
RGBrgb(49, 60, 86)
RGB (0–1)0.1922, 0.2353, 0.3373
RGB percentages19.2%, 23.5%, 33.7%
HSLhsl(222.2, 27.4%, 26.5%)
HSV / HSBhsv(222.2, 43%, 33.7%)
CMYK43%, 30.2%, 0%, 66.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,226,710
CSS custom property--colour: #313C56;

Brightness & contrast

Relative luminance0.04557WCAG 2.x, 0 is black and 1 is white
Perceived brightness60.6 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 10.99:1
Contrast with white10.99:1WCAG normal text: AAA
Contrast with black1.91:1WCAG normal text: Fail
Greyscale equivalent#3C3C3C
Inverted#CEC3A9

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#333E57no red cones; affects about 1% of men; ΔE 1.1 from the original
Deuteranopia#2F3B55no green cones; the most common form, about 1% of men; ΔE 0.6 from the original
Tritanopia#254145no blue cones; rare, and affects men and women equally; ΔE 16.8 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text10.99:1WCAG large text: AAA
Contrast with black, large text1.91:1WCAG large text: Fail

Named colours

Dark slate grey · ΔE 20.8Dim grey · ΔE 25.7Slate grey · ΔE 28.7Black · ΔE 30.8Light slate grey · ΔE 31.5Steel blue · ΔE 31.8
Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 20.8, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#564B31
Analogous#314E56, #393156
Triadic#56313C, #3C5631
Split complementary#563931, #4E5631
Tetradic#56314E, #564B31, #315639

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#92A0C1
Lighter +30%#7284AE
Lighter +20%#566997
Lighter +10%#445376
Darker −10%#1E2536
Darker −20%#0C0F15
Darker −30%#000000
Darker −40%#000000
More saturated +25%#203567
Less saturated −25%#424345

Channel breakdown

R49
G60
B86
Red49 (19.2%)
Green60 (23.5%)
Blue86 (33.7%)
Hue222.16°
Saturation (HSL)27.41%
Lightness26.47%
Dominant channelBlue
Hex per channelR 31 · G 3C · B 56

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Every value on this page was computed from “313c56” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.