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Recognised as Colour

#2B3437

  • #2B3437
  • Cyan
  • Dark
  • Nearest: Dark slate grey

#2B3437 is a cyan with RGB values 43, 52, 55 and HSL 195°, 12%, 19%. It is a dark colour, so white text on it reaches 12.7:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.

Colour values

#2B3437#2B3437
HEX#2B3437
RGBrgb(43, 52, 55)
RGB (0–1)0.1686, 0.2039, 0.2157
RGB percentages16.9%, 20.4%, 21.6%
HSLhsl(195, 12.2%, 19.2%)
HSV / HSBhsv(195, 21.8%, 21.6%)
CMYK21.8%, 5.5%, 0%, 78.4%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,831,415
CSS custom property--colour: #2B3437;

Brightness & contrast

Relative luminance0.03245WCAG 2.x, 0 is black and 1 is white
Perceived brightness49.8 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 12.73:1
Contrast with white12.73:1WCAG normal text: AAA
Contrast with black1.65:1WCAG normal text: Fail
Greyscale equivalent#323232
Inverted#D4CBC8

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#323337no red cones; affects about 1% of men; ΔE 3.6 from the original
Deuteranopia#303237no green cones; the most common form, about 1% of men; ΔE 3.4 from the original
Tritanopia#283535no blue cones; rare, and affects men and women equally; ΔE 2.8 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text12.73:1WCAG large text: AAA
Contrast with black, large text1.65:1WCAG large text: Fail

Named colours

Dark slate grey · ΔE 13.5Black · ΔE 21.4Dim grey · ΔE 23.8Slate grey · ΔE 32.7Gray · ΔE 32.9Light slate grey · ΔE 35.8
Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 13.47, a distinctly different colour
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#372E2B
Analogous#2B3734, #2B2E37
Triadic#372B34, #34372B
Split complementary#372B2E, #37342B
Tetradic#342B37, #372E2B, #2E372B

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#8A9DA4
Lighter +30%#6E858D
Lighter +20%#586A70
Lighter +10%#414F54
Darker −10%#15191A
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#1F3A43
Less saturated −25%#313131

Channel breakdown

R43
G52
B55
Red43 (16.9%)
Green52 (20.4%)
Blue55 (21.6%)
Hue195°
Saturation (HSL)12.24%
Lightness19.22%
Dominant channelBlue
Hex per channelR 2B · G 34 · B 37

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Every value on this page was computed from “2b3437” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.