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Recognised as Colour

#033197

  • #033197
  • Blue
  • Dark
  • Nearest: Midnight blue

#033197 is a blue with RGB values 3, 49, 151 and HSL 221°, 96%, 30%. It is a dark colour, so white text on it reaches 11.1:1 contrast (AAA for normal text). The nearest named colour is Midnight blue.

Colour values

#033197#033197
HEX#033197
RGBrgb(3, 49, 151)
RGB (0–1)0.0118, 0.1922, 0.5922
RGB percentages1.2%, 19.2%, 59.2%
HSLhsl(221.4, 96.1%, 30.2%)
HSV / HSBhsv(221.4, 98%, 59.2%)
CMYK98%, 67.5%, 0%, 40.8%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer209,303
CSS custom property--colour: #033197;

Brightness & contrast

Relative luminance0.0445WCAG 2.x, 0 is black and 1 is white
Perceived brightness63.3 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 11.11:1
Contrast with white11.11:1WCAG normal text: AAA
Contrast with black1.89:1WCAG normal text: Fail
Greyscale equivalent#2F2F2F
Inverted#FCCE68

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#00429Ano red cones; affects about 1% of men; ΔE 13.3 from the original
Deuteranopia#003595no green cones; the most common form, about 1% of men; ΔE 4.6 from the original
Tritanopia#004D5Fno blue cones; rare, and affects men and women equally; ΔE 60.7 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text11.11:1WCAG large text: AAA
Contrast with black, large text1.89:1WCAG large text: Fail

Named colours

Midnight blue · ΔE 13.3Dark slateblue · ΔE 18.2Rebecca purple · ΔE 19.4Slate blue · ΔE 21.3Navy · ΔE 22.4Indigo · ΔE 23.3
Nearest named CSS colourMidnight blue (#191970)ΔE 13.34, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#976903
Analogous#037B97, #1F0397
Triadic#970331, #319703
Split complementary#971F03, #7B9703
Tetradic#97037B, #976903, #03971F

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#6A97FC
Lighter +30%#3875FB
Lighter +20%#0652FA
Lighter +10%#0441C9
Darker −10%#022165
Darker −20%#011133
Darker −30%#000001
Darker −40%#000000
More saturated +25%#00309A
Less saturated −25%#163884

Channel breakdown

R3
G49
B151
Red3 (1.2%)
Green49 (19.2%)
Blue151 (59.2%)
Hue221.35°
Saturation (HSL)96.1%
Lightness30.2%
Dominant channelBlue
Hex per channelR 03 · G 31 · B 97

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Every value on this page was computed from “hex 033197” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.