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Recognised as Colour

#2A4247

  • #2A4247
  • Cyan
  • Dark
  • Nearest: Dark slate grey

#2A4247 is a cyan with RGB values 42, 66, 71 and HSL 190°, 26%, 22%. It is a dark colour, so white text on it reaches 10.7:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.

Colour values

#2A4247#2A4247
HEX#2A4247
RGBrgb(42, 66, 71)
RGB (0–1)0.1647, 0.2588, 0.2784
RGB percentages16.5%, 25.9%, 27.8%
HSLhsl(190.3, 25.7%, 22.2%)
HSV / HSBhsv(190.3, 40.8%, 27.8%)
CMYK40.8%, 7%, 0%, 72.2%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,769,479
CSS custom property--colour: #2A4247;

Brightness & contrast

Relative luminance0.04844WCAG 2.x, 0 is black and 1 is white
Perceived brightness60.5 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 10.67:1
Contrast with white10.67:1WCAG normal text: AAA
Contrast with black1.97:1WCAG normal text: Fail
Greyscale equivalent#3D3D3D
Inverted#D5BDB8

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#3E4047no red cones; affects about 1% of men; ΔE 8.8 from the original
Deuteranopia#393D47no green cones; the most common form, about 1% of men; ΔE 8.6 from the original
Tritanopia#1F4443no blue cones; rare, and affects men and women equally; ΔE 6.2 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text10.67:1WCAG large text: AAA
Contrast with black, large text1.97:1WCAG large text: Fail

Named colours

Dark slate grey · ΔE 6.7Dim grey · ΔE 20.6Slate grey · ΔE 27.5Black · ΔE 28.1Gray · ΔE 29Teal · ΔE 30.6
Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 6.75, clearly different but related
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#472F2A
Analogous#2A473E, #2A3347
Triadic#472A42, #42472A
Split complementary#472A33, #473E2A
Tetradic#3E2A47, #472F2A, #33472A

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#86AFB7
Lighter +30%#669AA4
Lighter +20%#507E87
Lighter +10%#3D6067
Darker −10%#172427
Darker −20%#040607
Darker −30%#000000
Darker −40%#000000
More saturated +25%#1C4B55
Less saturated −25%#383939

Channel breakdown

R42
G66
B71
Red42 (16.5%)
Green66 (25.9%)
Blue71 (27.8%)
Hue190.34°
Saturation (HSL)25.66%
Lightness22.16%
Dominant channelBlue
Hex per channelR 2A · G 42 · B 47

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Every value on this page was computed from “2a4247” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.