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Recognised as Colour

#2B3839

  • #2B3839
  • Cyan
  • Dark
  • Nearest: Dark slate grey

#2B3839 is a cyan with RGB values 43, 56, 57 and HSL 184°, 14%, 20%. It is a dark colour, so white text on it reaches 12.2:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.

Colour values

#2B3839#2B3839
HEX#2B3839
RGBrgb(43, 56, 57)
RGB (0–1)0.1686, 0.2196, 0.2235
RGB percentages16.9%, 22%, 22.4%
HSLhsl(184.3, 14%, 19.6%)
HSV / HSBhsv(184.3, 24.6%, 22.4%)
CMYK24.6%, 1.8%, 0%, 77.6%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,832,441
CSS custom property--colour: #2B3839;

Brightness & contrast

Relative luminance0.03637WCAG 2.x, 0 is black and 1 is white
Perceived brightness52.6 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 12.16:1
Contrast with white12.16:1WCAG normal text: AAA
Contrast with black1.73:1WCAG normal text: Fail
Greyscale equivalent#353535
Inverted#D4C7C6

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#363739no red cones; affects about 1% of men; ΔE 5.3 from the original
Deuteranopia#333539no green cones; the most common form, about 1% of men; ΔE 5.2 from the original
Tritanopia#273938no blue cones; rare, and affects men and women equally; ΔE 2.5 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text12.16:1WCAG large text: AAA
Contrast with black, large text1.73:1WCAG large text: Fail

Named colours

Dark slate grey · ΔE 11.1Dim grey · ΔE 22.7Black · ΔE 23.1Slate grey · ΔE 31.6Gray · ΔE 31.7Light slate grey · ΔE 34.7
Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 11.12, a distinctly different colour
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#392C2B
Analogous#2B3933, #2B3139
Triadic#392B38, #38392B
Split complementary#392B31, #39332B
Tetradic#332B39, #392C2B, #31392B

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#8AA4A6
Lighter +30%#6D8E90
Lighter +20%#577173
Lighter +10%#415556
Darker −10%#151B1C
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#1F4346
Less saturated −25%#323232

Channel breakdown

R43
G56
B57
Red43 (16.9%)
Green56 (22%)
Blue57 (22.4%)
Hue184.29°
Saturation (HSL)14%
Lightness19.61%
Dominant channelBlue
Hex per channelR 2B · G 38 · B 39

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Every value on this page was computed from “2b3839” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.