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Recognised as Colour

#2F2D37

  • #2F2D37
  • Blue
  • Dark
  • Nearest: Dark slate grey

#2F2D37 is a blue with RGB values 47, 45, 55 and HSL 252°, 10%, 20%. It is a dark colour, so white text on it reaches 13.5:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.

Colour values

#2F2D37#2F2D37
HEX#2F2D37
RGBrgb(47, 45, 55)
RGB (0–1)0.1843, 0.1765, 0.2157
RGB percentages18.4%, 17.6%, 21.6%
HSLhsl(252, 10%, 19.6%)
HSV / HSBhsv(252, 18.2%, 21.6%)
CMYK14.5%, 18.2%, 0%, 78.4%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,091,767
CSS custom property--colour: #2F2D37;

Brightness & contrast

Relative luminance0.02757WCAG 2.x, 0 is black and 1 is white
Perceived brightness46.8 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 13.54:1
Contrast with white13.54:1WCAG normal text: AAA
Contrast with black1.55:1WCAG normal text: Fail
Greyscale equivalent#2E2E2E
Inverted#D0D2C8

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#2B2E37no red cones; affects about 1% of men; ΔE 2.3 from the original
Deuteranopia#2B2E37no green cones; the most common form, about 1% of men; ΔE 2.3 from the original
Tritanopia#2E2E30no blue cones; rare, and affects men and women equally; ΔE 5.6 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text13.54:1WCAG large text: AAA
Contrast with black, large text1.55:1WCAG large text: Fail

Named colours

Dark slate grey · ΔE 19.6Black · ΔE 20.3Dim grey · ΔE 26.3Slate grey · ΔE 34.5Gray · ΔE 35.2Light slate grey · ΔE 37.6
Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 19.56, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#35372D
Analogous#2D3037, #342D37
Triadic#372F2D, #2D372F
Split complementary#37342D, #30372D
Tetradic#372D30, #35372D, #2D3734

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#928EA2
Lighter +30%#77728B
Lighter +20%#5F5B6F
Lighter +10%#474453
Darker −10%#17161B
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#282144
Less saturated −25%#323232

Channel breakdown

R47
G45
B55
Red47 (18.4%)
Green45 (17.6%)
Blue55 (21.6%)
Hue252°
Saturation (HSL)10%
Lightness19.61%
Dominant channelBlue
Hex per channelR 2F · G 2D · B 37

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Every value on this page was computed from “2f2d37” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.