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Recognised as Colour

#33678D

  • #33678D
  • Blue
  • Dark
  • Nearest: Steel blue

#33678D is a blue with RGB values 51, 103, 141 and HSL 205°, 47%, 38%. It is a dark colour, so white text on it reaches 6.1:1 contrast (AA for normal text). The nearest named colour is Steel blue.

Colour values

#33678D#33678D
HEX#33678D
RGBrgb(51, 103, 141)
RGB (0–1)0.2, 0.4039, 0.5529
RGB percentages20%, 40.4%, 55.3%
HSLhsl(205.3, 46.9%, 37.6%)
HSV / HSBhsv(205.3, 63.8%, 55.3%)
CMYK63.8%, 27%, 0%, 44.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,368,845
CSS custom property--colour: #33678D;

Brightness & contrast

Relative luminance0.12327WCAG 2.x, 0 is black and 1 is white
Perceived brightness96.3 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 6.06:1
Contrast with white6.06:1WCAG normal text: AA
Contrast with black3.47:1WCAG normal text: Fail
Greyscale equivalent#5F5F5F
Inverted#CC9872

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#56678Fno red cones; affects about 1% of men; ΔE 9.7 from the original
Deuteranopia#4A5E8Cno green cones; the most common form, about 1% of men; ΔE 10.9 from the original
Tritanopia#007074no blue cones; rare, and affects men and women equally; ΔE 25.6 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text6.06:1WCAG large text: AAA
Contrast with black, large text3.47:1WCAG large text: AA

Named colours

Steel blue · ΔE 12.4Slate grey · ΔE 19.3Light slate grey · ΔE 20.8Dark slate grey · ΔE 25.6Dim grey · ΔE 26.7Gray · ΔE 29.1
Nearest named CSS colourSteel blue (#4682B4)ΔE 12.38, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#8D5933
Analogous#338D86, #333A8D
Triadic#8D3367, #678D33
Split complementary#8D333A, #8D8633
Tetradic#86338D, #8D5933, #3A8D33

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#ABCAE1
Lighter +30%#86B3D3
Lighter +20%#609BC6
Lighter +10%#4182B2
Darker −10%#254C68
Darker −20%#183042
Darker −30%#0A151D
Darker −40%#000000
More saturated +25%#1B6BA5
Less saturated −25%#4B6375

Channel breakdown

R51
G103
B141
Red51 (20%)
Green103 (40.4%)
Blue141 (55.3%)
Hue205.33°
Saturation (HSL)46.88%
Lightness37.65%
Dominant channelBlue
Hex per channelR 33 · G 67 · B 8D

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Every value on this page was computed from “33678d” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.