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Recognised as Colour

#2A3959

  • #2A3959
  • Blue
  • Dark
  • Nearest: Dark slate grey

#2A3959 is a blue with RGB values 42, 57, 89 and HSL 221°, 36%, 26%. It is a dark colour, so white text on it reaches 11.5:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.

Colour values

#2A3959#2A3959
HEX#2A3959
RGBrgb(42, 57, 89)
RGB (0–1)0.1647, 0.2235, 0.349
RGB percentages16.5%, 22.4%, 34.9%
HSLhsl(220.9, 35.9%, 25.7%)
HSV / HSBhsv(220.9, 52.8%, 34.9%)
CMYK52.8%, 36%, 0%, 65.1%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,767,193
CSS custom property--colour: #2A3959;

Brightness & contrast

Relative luminance0.0414WCAG 2.x, 0 is black and 1 is white
Perceived brightness57.8 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 11.49:1
Contrast with white11.49:1WCAG normal text: AAA
Contrast with black1.83:1WCAG normal text: Fail
Greyscale equivalent#383838
Inverted#D5C6A6

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#2D3C5Ano red cones; affects about 1% of men; ΔE 1.9 from the original
Deuteranopia#283758no green cones; the most common form, about 1% of men; ΔE 1.2 from the original
Tritanopia#164045no blue cones; rare, and affects men and women equally; ΔE 21.6 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text11.49:1WCAG large text: AAA
Contrast with black, large text1.83:1WCAG large text: Fail

Named colours

Dark slate grey · ΔE 24.6Dim grey · ΔE 29.6Dark slateblue · ΔE 31.1Slate grey · ΔE 31.2Steel blue · ΔE 31.5Black · ΔE 32.3
Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 24.57, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#594A2A
Analogous#2A5159, #332A59
Triadic#592A39, #39592A
Split complementary#59322A, #51592A
Tetradic#592A51, #594A2A, #2A5932

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#889CC7
Lighter +30%#657FB7
Lighter +20%#4B659E
Lighter +10%#3A4F7C
Darker −10%#1A2336
Darker −20%#090D14
Darker −30%#000000
Darker −40%#000000
More saturated +25%#1A3369
Less saturated −25%#3A3F49

Channel breakdown

R42
G57
B89
Red42 (16.5%)
Green57 (22.4%)
Blue89 (34.9%)
Hue220.85°
Saturation (HSL)35.88%
Lightness25.69%
Dominant channelBlue
Hex per channelR 2A · G 39 · B 59

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Every value on this page was computed from “2a3959” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.