Nerdulator> put something in

Colour

#31384B

  • #31384B
  • Blue
  • Dark
  • Nearest: Dark slate grey

#31384B is a blue with RGB values 49, 56, 75 and HSL 224°, 21%, 24%. It is a dark colour, so white text on it reaches 11.7:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.

Colour values

#31384B#31384B
HEX#31384B
RGBrgb(49, 56, 75)
RGB (0–1)0.1922, 0.2196, 0.2941
RGB percentages19.2%, 22%, 29.4%
HSLhsl(223.8, 21%, 24.3%)
HSV / HSBhsv(223.8, 34.7%, 29.4%)
CMYK34.7%, 25.3%, 0%, 70.6%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,225,675
CSS custom property--colour: #31384B;

Brightness & contrast

Relative luminance0.03989WCAG 2.x, 0 is black and 1 is white
Perceived brightness56.6 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 11.68:1
Contrast with white11.68:1WCAG normal text: AAA
Contrast with black1.8:1WCAG normal text: Fail
Greyscale equivalent#383838
Inverted#CEC7B4

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#32394Cno red cones; affects about 1% of men; ΔE 0.4 from the original
Deuteranopia#30374Bno green cones; the most common form, about 1% of men; ΔE 0.8 from the original
Tritanopia#2A3C3Eno 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 text11.68:1WCAG large text: AAA
Contrast with black, large text1.8:1WCAG large text: Fail

Named colours

Dark slate grey · ΔE 18.3Dim grey · ΔE 24.4Black · ΔE 26.9Slate grey · ΔE 29.6Gray · ΔE 32.6Light slate grey · ΔE 32.6
Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 18.3, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#4B4431
Analogous#31454B, #37314B
Triadic#4B3138, #384B31
Split complementary#4B3731, #454B31
Tetradic#4B3145, #4B4431, #314B37

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#919BB7
Lighter +30%#727FA3
Lighter +20%#596689
Lighter +10%#454F6A
Darker −10%#1D212C
Darker −20%#090A0D
Darker −30%#000000
Darker −40%#000000
More saturated +25%#22315B
Less saturated −25%#3E3E3E

Channel breakdown

R49
G56
B75
Red49 (19.2%)
Green56 (22%)
Blue75 (29.4%)
Hue223.85°
Saturation (HSL)20.97%
Lightness24.31%
Dominant channelBlue
Hex per channelR 31 · G 38 · B 4B

Keep nerding

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

Nerdulate something else

Nothing in mind? Surprise me · today’s page

Every value on this page was computed from “31384b” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.