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Recognised as Colour

#33256D

  • #33256D
  • Blue
  • Dark
  • Nearest: Dark slateblue

#33256D is a blue with RGB values 51, 37, 109 and HSL 252°, 49%, 29%. It is a dark colour, so white text on it reaches 12.9:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#33256D#33256D
HEX#33256D
RGBrgb(51, 37, 109)
RGB (0–1)0.2, 0.1451, 0.4275
RGB percentages20%, 14.5%, 42.7%
HSLhsl(251.7, 49.3%, 28.6%)
HSV / HSBhsv(251.7, 66.1%, 42.7%)
CMYK53.2%, 66.1%, 0%, 57.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,351,917
CSS custom property--colour: #33256D;

Brightness & contrast

Relative luminance0.03131WCAG 2.x, 0 is black and 1 is white
Perceived brightness54.2 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 12.91:1
Contrast with white12.91:1WCAG normal text: AAA
Contrast with black1.63:1WCAG normal text: Fail
Greyscale equivalent#2D2D2D
Inverted#CCDA92

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#00336Fno red cones; affects about 1% of men; ΔE 16.3 from the original
Deuteranopia#002F6Cno green cones; the most common form, about 1% of men; ΔE 14.6 from the original
Tritanopia#1E3645no blue cones; rare, and affects men and women equally; ΔE 41.8 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text12.91:1WCAG large text: AAA
Contrast with black, large text1.63:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 10.6Midnight blue · ΔE 11.8Rebecca purple · ΔE 21.4Indigo · ΔE 28.1Slate blue · ΔE 31.9Navy · ΔE 33.1
Nearest named CSS colourDark slateblue (#483D8B)ΔE 10.56, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#5F6D25
Analogous#253B6D, #57256D
Triadic#6D3325, #256D33
Split complementary#6D5725, #3B6D25
Tetradic#6D253B, #5F6D25, #256D57

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#9788D6
Lighter +30%#7661CA
Lighter +20%#573FB9
Lighter +10%#453293
Darker −10%#211847
Darker −20%#0F0B21
Darker −30%#000000
Darker −40%#000000
More saturated +25%#28137F
Less saturated −25%#3E375B

Channel breakdown

R51
G37
B109
Red51 (20%)
Green37 (14.5%)
Blue109 (42.7%)
Hue251.67°
Saturation (HSL)49.32%
Lightness28.63%
Dominant channelBlue
Hex per channelR 33 · G 25 · B 6D

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Every value on this page was computed from “33256d” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.