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Recognised as Colour

#2D2D37

  • #2D2D37
  • Blue
  • Dark
  • Nearest: Dark slate grey

#2D2D37 is a blue with RGB values 45, 45, 55 and HSL 240°, 10%, 20%. It is a dark colour, so white text on it reaches 13.6:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.

Colour values

#2D2D37#2D2D37
HEX#2D2D37
RGBrgb(45, 45, 55)
RGB (0–1)0.1765, 0.1765, 0.2157
RGB percentages17.6%, 17.6%, 21.6%
HSLhsl(240, 10%, 19.6%)
HSV / HSBhsv(240, 18.2%, 21.6%)
CMYK18.2%, 18.2%, 0%, 78.4%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,960,695
CSS custom property--colour: #2D2D37;

Brightness & contrast

Relative luminance0.0271WCAG 2.x, 0 is black and 1 is white
Perceived brightness46.2 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 13.62:1
Contrast with white13.62:1WCAG normal text: AAA
Contrast with black1.54:1WCAG normal text: Fail
Greyscale equivalent#2E2E2E
Inverted#D2D2C8

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#2B2E37no red cones; affects about 1% of men; ΔE 1.5 from the original
Deuteranopia#2A2E37no green cones; the most common form, about 1% of men; ΔE 1.9 from the original
Tritanopia#2B2F30no blue cones; rare, and affects men and women equally; ΔE 6.5 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text13.62:1WCAG large text: AAA
Contrast with black, large text1.54:1WCAG large text: Fail

Named colours

Dark slate grey · ΔE 19.1Black · ΔE 20.1Dim grey · ΔE 26.5Slate grey · ΔE 34.6Gray · ΔE 35.4Light slate grey · ΔE 37.7
Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 19.1, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#37372D
Analogous#2D3237, #322D37
Triadic#372D2D, #2D372D
Split complementary#37322D, #32372D
Tetradic#372D32, #37372D, #2D3732

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#8E8EA2
Lighter +30%#72728B
Lighter +20%#5B5B6F
Lighter +10%#444453
Darker −10%#16161B
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#212144
Less saturated −25%#323232

Channel breakdown

R45
G45
B55
Red45 (17.6%)
Green45 (17.6%)
Blue55 (21.6%)
Hue240°
Saturation (HSL)10%
Lightness19.61%
Dominant channelBlue
Hex per channelR 2D · G 2D · B 37

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Every value on this page was computed from “2d2d37” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.