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Recognised as Colour

#033797

  • #033797
  • Blue
  • Dark
  • Nearest: Midnight blue

#033797 is a blue with RGB values 3, 55, 151 and HSL 219°, 96%, 30%. It is a dark colour, so white text on it reaches 10.5:1 contrast (AAA for normal text). The nearest named colour is Midnight blue.

Colour values

#033797#033797
HEX#033797
RGBrgb(3, 55, 151)
RGB (0–1)0.0118, 0.2157, 0.5922
RGB percentages1.2%, 21.6%, 59.2%
HSLhsl(218.9, 96.1%, 30.2%)
HSV / HSBhsv(218.9, 98%, 59.2%)
CMYK98%, 63.6%, 0%, 40.8%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer210,839
CSS custom property--colour: #033797;

Brightness & contrast

Relative luminance0.04986WCAG 2.x, 0 is black and 1 is white
Perceived brightness66.2 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 10.51:1
Contrast with white10.51:1WCAG normal text: AAA
Contrast with black2:1WCAG normal text: Fail
Greyscale equivalent#333333
Inverted#FCC868

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#00469Ano red cones; affects about 1% of men; ΔE 11.7 from the original
Deuteranopia#003995no green cones; the most common form, about 1% of men; ΔE 2.9 from the original
Tritanopia#005061no blue cones; rare, and affects men and women equally; ΔE 56.9 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text10.51:1WCAG large text: AAA
Contrast with black, large text2:1WCAG large text: Fail

Named colours

Midnight blue · ΔE 14.2Dark slateblue · ΔE 14.9Rebecca purple · ΔE 20.7Slate blue · ΔE 21.5Royal blue · ΔE 23Indigo · ΔE 27.1
Nearest named CSS colourMidnight blue (#191970)ΔE 14.23, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#976303
Analogous#038197, #190397
Triadic#970337, #379703
Split complementary#971903, #819703
Tetradic#970381, #976303, #039719

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#6A9DFC
Lighter +30%#387CFB
Lighter +20%#065CFA
Lighter +10%#0449C9
Darker −10%#022565
Darker −20%#011333
Darker −30%#000001
Darker −40%#000000
More saturated +25%#00369A
Less saturated −25%#163D84

Channel breakdown

R3
G55
B151
Red3 (1.2%)
Green55 (21.6%)
Blue151 (59.2%)
Hue218.92°
Saturation (HSL)96.1%
Lightness30.2%
Dominant channelBlue
Hex per channelR 03 · G 37 · B 97

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Every value on this page was computed from “hex 033797” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.