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Colour

#00217C

  • #00217C
  • Blue
  • Dark
  • Nearest: Midnight blue

#00217C is a blue with RGB values 0, 33, 124 and HSL 224°, 100%, 24%. It is a dark colour, so white text on it reaches 13.9:1 contrast (AAA for normal text). The nearest named colour is Midnight blue.

Colour values

#00217C#00217C
HEX#00217C
RGBrgb(0, 33, 124)
RGB (0–1)0, 0.1294, 0.4863
RGB percentages0%, 12.9%, 48.6%
HSLhsl(224, 100%, 24.3%)
HSV / HSBhsv(224, 100%, 48.6%)
CMYK100%, 73.4%, 0%, 51.4%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer8,572
CSS custom property--colour: #00217C;

Brightness & contrast

Relative luminance0.02543WCAG 2.x, 0 is black and 1 is white
Perceived brightness48.9 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 13.92:1
Contrast with white13.92:1WCAG normal text: AAA
Contrast with black1.51:1WCAG normal text: Fail
Greyscale equivalent#212121
Inverted#FFDE83

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#00327Fno red cones; affects about 1% of men; ΔE 13.4 from the original
Deuteranopia#00267Ano green cones; the most common form, about 1% of men; ΔE 5.4 from the original
Tritanopia#003B4Cno blue cones; rare, and affects men and women equally; ΔE 55.4 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text13.92:1WCAG large text: AAA
Contrast with black, large text1.51:1WCAG large text: Fail

Named colours

Midnight blue · ΔE 5.1Dark slateblue · ΔE 17.5Rebecca purple · ΔE 21Navy · ΔE 21.8Indigo · ΔE 22.3Dark blue · ΔE 26
Nearest named CSS colourMidnight blue (#191970)ΔE 5.13, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#7C5B00
Analogous#005F7C, #1D007C
Triadic#7C0021, #217C00
Split complementary#7C1D00, #5F7C00
Tetradic#7C005F, #7C5B00, #007C1D

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#4979FF
Lighter +30%#1654FF
Lighter +20%#003CE2
Lighter +10%#002FAF
Darker −10%#001349
Darker −20%#000616
Darker −30%#000000
Darker −40%#000000
More saturated +25%#00217C
Less saturated −25%#10286D

Channel breakdown

R0
G33
B124
Red0 (0%)
Green33 (12.9%)
Blue124 (48.6%)
Hue224.03°
Saturation (HSL)100%
Lightness24.31%
Dominant channelBlue
Hex per channelR 00 · G 21 · B 7C

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Every value on this page was computed from “00217c” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.