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Colour

#333A41

  • #333A41
  • Blue
  • Dark
  • Nearest: Dark slate grey

#333A41 is a blue with RGB values 51, 58, 65 and HSL 210°, 12%, 23%. 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

#333A41#333A41
HEX#333A41
RGBrgb(51, 58, 65)
RGB (0–1)0.2, 0.2275, 0.2549
RGB percentages20%, 22.7%, 25.5%
HSLhsl(210, 12.1%, 22.7%)
HSV / HSBhsv(210, 21.5%, 25.5%)
CMYK21.5%, 10.8%, 0%, 74.5%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,357,249
CSS custom property--colour: #333A41;

Brightness & contrast

Relative luminance0.04112WCAG 2.x, 0 is black and 1 is white
Perceived brightness56.9 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 11.52:1
Contrast with white11.52:1WCAG normal text: AAA
Contrast with black1.82:1WCAG normal text: Fail
Greyscale equivalent#393939
Inverted#CCC5BE

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#373A41no red cones; affects about 1% of men; ΔE 1.7 from the original
Deuteranopia#363941no green cones; the most common form, about 1% of men; ΔE 1.8 from the original
Tritanopia#2F3C3Cno blue cones; rare, and affects men and women equally; ΔE 5.5 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text11.52:1WCAG large text: AAA
Contrast with black, large text1.82:1WCAG large text: Fail

Named colours

Dark slate grey · ΔE 12.9Dim grey · ΔE 21.1Black · ΔE 24.6Slate grey · ΔE 29.3Gray · ΔE 30Light slate grey · ΔE 32.4
Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 12.92, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#413A33
Analogous#334141, #333341
Triadic#41333A, #3A4133
Split complementary#413333, #414133
Tetradic#413341, #413A33, #334133

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#95A0AB
Lighter +30%#788795
Lighter +20%#606D7A
Lighter +10%#49545E
Darker −10%#1D2124
Darker −20%#060708
Darker −30%#000000
Darker −40%#000000
More saturated +25%#253A50
Less saturated −25%#3A3A3A

Channel breakdown

R51
G58
B65
Red51 (20%)
Green58 (22.7%)
Blue65 (25.5%)
Hue210°
Saturation (HSL)12.07%
Lightness22.75%
Dominant channelBlue
Hex per channelR 33 · G 3A · B 41

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Every value on this page was computed from “333a41” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.