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Recognised as Colour

#383B50

  • #383B50
  • Blue
  • Dark
  • Nearest: Dark slate grey

#383B50 is a blue with RGB values 56, 59, 80 and HSL 233°, 18%, 27%. 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

#383B50#383B50
HEX#383B50
RGBrgb(56, 59, 80)
RGB (0–1)0.2196, 0.2314, 0.3137
RGB percentages22%, 23.1%, 31.4%
HSLhsl(232.5, 17.6%, 26.7%)
HSV / HSBhsv(232.5, 30%, 31.4%)
CMYK30%, 26.2%, 0%, 68.6%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,685,200
CSS custom property--colour: #383B50;

Brightness & contrast

Relative luminance0.04548WCAG 2.x, 0 is black and 1 is white
Perceived brightness60.9 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 11:1
Contrast with white11:1WCAG normal text: AAA
Contrast with black1.91:1WCAG normal text: Fail
Greyscale equivalent#3C3C3C
Inverted#C7C4AF

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#353D51no red cones; affects about 1% of men; ΔE 2.1 from the original
Deuteranopia#343B4Fno green cones; the most common form, about 1% of men; ΔE 1.7 from the original
Tritanopia#323F42no blue cones; rare, and affects men and women equally; ΔE 13 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text11:1WCAG large text: AAA
Contrast with black, large text1.91:1WCAG large text: Fail

Named colours

Dark slate grey · ΔE 19.5Dim grey · ΔE 23.5Slate grey · ΔE 28.3Black · ΔE 28.9Light slate grey · ΔE 31.3Gray · ΔE 31.4
Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 19.48, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#504D38
Analogous#384750, #413850
Triadic#50383B, #3B5038
Split complementary#504138, #475038
Tetradic#503847, #504D38, #385041

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#9B9FB9
Lighter +30%#7D82A4
Lighter +20%#62678C
Lighter +10%#4D516E
Darker −10%#232532
Darker −20%#0E0F14
Darker −30%#000000
Darker −40%#000000
More saturated +25%#272E61
Less saturated −25%#444444

Channel breakdown

R56
G59
B80
Red56 (22%)
Green59 (23.1%)
Blue80 (31.4%)
Hue232.5°
Saturation (HSL)17.65%
Lightness26.67%
Dominant channelBlue
Hex per channelR 38 · G 3B · B 50

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Every value on this page was computed from “383b50” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.