Nerdulator> put something in

Colour

#31383C

  • #31383C
  • Blue
  • Dark
  • Nearest: Dark slate grey

#31383C is a blue with RGB values 49, 56, 60 and HSL 202°, 10%, 21%. It is a dark colour, so white text on it reaches 11.9:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.

Colour values

#31383C#31383C
HEX#31383C
RGBrgb(49, 56, 60)
RGB (0–1)0.1922, 0.2196, 0.2353
RGB percentages19.2%, 22%, 23.5%
HSLhsl(201.8, 10.1%, 21.4%)
HSV / HSBhsv(201.8, 18.3%, 23.5%)
CMYK18.3%, 6.7%, 0%, 76.5%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,225,660
CSS custom property--colour: #31383C;

Brightness & contrast

Relative luminance0.03808WCAG 2.x, 0 is black and 1 is white
Perceived brightness54.5 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 11.92:1
Contrast with white11.92:1WCAG normal text: AAA
Contrast with black1.76:1WCAG normal text: Fail
Greyscale equivalent#373737
Inverted#CEC7C3

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#36383Cno red cones; affects about 1% of men; ΔE 2.2 from the original
Deuteranopia#35363Cno green cones; the most common form, about 1% of men; ΔE 3 from the original
Tritanopia#2E3939no blue cones; rare, and affects men and women equally; ΔE 3.3 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text11.92:1WCAG large text: AAA
Contrast with black, large text1.76:1WCAG large text: Fail

Named colours

Dark slate grey · ΔE 12.8Dim grey · ΔE 21.8Black · ΔE 23.4Slate grey · ΔE 30.6Gray · ΔE 30.8Light slate grey · ΔE 33.8
Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 12.8, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#3C3531
Analogous#313C3A, #31333C
Triadic#3C3138, #383C31
Split complementary#3C3133, #3C3B31
Tetradic#3A313C, #3C3531, #333C31

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#939FA6
Lighter +30%#768690
Lighter +20%#5F6C74
Lighter +10%#485258
Darker −10%#1A1E20
Darker −20%#030404
Darker −30%#000000
Darker −40%#000000
More saturated +25%#233C4A
Less saturated −25%#373737

Channel breakdown

R49
G56
B60
Red49 (19.2%)
Green56 (22%)
Blue60 (23.5%)
Hue201.82°
Saturation (HSL)10.09%
Lightness21.37%
Dominant channelBlue
Hex per channelR 31 · G 38 · B 3C

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 “31383c” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.