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Colour

#33353D

  • #33353D
  • Blue
  • Dark
  • Nearest: Dark slate grey

#33353D is a blue with RGB values 51, 53, 61 and HSL 228°, 9%, 22%. It is a dark colour, so white text on it reaches 12.2:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.

Colour values

#33353D#33353D
HEX#33353D
RGBrgb(51, 53, 61)
RGB (0–1)0.2, 0.2078, 0.2392
RGB percentages20%, 20.8%, 23.9%
HSLhsl(228, 8.9%, 22%)
HSV / HSBhsv(228, 16.4%, 23.9%)
CMYK16.4%, 13.1%, 0%, 76.1%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,355,965
CSS custom property--colour: #33353D;

Brightness & contrast

Relative luminance0.03587WCAG 2.x, 0 is black and 1 is white
Perceived brightness53.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 12.23:1
Contrast with white12.23:1WCAG normal text: AAA
Contrast with black1.72:1WCAG normal text: Fail
Greyscale equivalent#353535
Inverted#CCCAC2

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#33363Dno red cones; affects about 1% of men; ΔE 0.9 from the original
Deuteranopia#32353Dno green cones; the most common form, about 1% of men; ΔE 0.4 from the original
Tritanopia#313638no blue cones; rare, and affects men and women equally; ΔE 4.3 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text12.23:1WCAG large text: AAA
Contrast with black, large text1.72:1WCAG large text: Fail

Named colours

Dark slate grey · ΔE 15.8Dim grey · ΔE 22.8Black · ΔE 22.9Slate grey · ΔE 31.2Gray · ΔE 31.8Light slate grey · ΔE 34.3
Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 15.77, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#3D3B33
Analogous#333A3D, #36333D
Triadic#3D3335, #353D33
Split complementary#3D3633, #3A3D33
Tetradic#3D333A, #3D3B33, #333D36

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#9599A7
Lighter +30%#7A7E8F
Lighter +20%#616575
Lighter +10%#4A4D59
Darker −10%#1C1D21
Darker −20%#050505
Darker −30%#000000
Darker −40%#000000
More saturated +25%#252D4B
Less saturated −25%#383838

Channel breakdown

R51
G53
B61
Red51 (20%)
Green53 (20.8%)
Blue61 (23.9%)
Hue228°
Saturation (HSL)8.93%
Lightness21.96%
Dominant channelBlue
Hex per channelR 33 · G 35 · B 3D

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Every value on this page was computed from “33353d” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.