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Colour

#2218B3

  • #2218B3
  • Blue
  • Dark
  • Nearest: Dark blue

#2218B3 is a blue with RGB values 34, 24, 179 and HSL 244°, 76%, 40%. It is a dark colour, so white text on it reaches 11.4:1 contrast (AAA for normal text). The nearest named colour is Dark blue.

Colour values

#2218B3#2218B3
HEX#2218B3
RGBrgb(34, 24, 179)
RGB (0–1)0.1333, 0.0941, 0.702
RGB percentages13.3%, 9.4%, 70.2%
HSLhsl(243.9, 76.4%, 39.8%)
HSV / HSBhsv(243.9, 86.6%, 70.2%)
CMYK81%, 86.6%, 0%, 29.8%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,234,547
CSS custom property--colour: #2218B3;

Brightness & contrast

Relative luminance0.04248WCAG 2.x, 0 is black and 1 is white
Perceived brightness65.9 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 11.35:1
Contrast with white11.35:1WCAG normal text: AAA
Contrast with black1.85:1WCAG normal text: Fail
Greyscale equivalent#252525
Inverted#DDE74C

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0042B7no red cones; affects about 1% of men; ΔE 27.3 from the original
Deuteranopia#0032B1no green cones; the most common form, about 1% of men; ΔE 17.4 from the original
Tritanopia#004D6Ano blue cones; rare, and affects men and women equally; ΔE 83.8 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text11.35:1WCAG large text: AAA
Contrast with black, large text1.85:1WCAG large text: Fail

Named colours

Dark blue · ΔE 13.4Navy · ΔE 18.2Medium blue · ΔE 19.3Blue violet · ΔE 23.6Indigo · ΔE 24.1Dark violet · ΔE 27.4
Nearest named CSS colourDark blue (#00008B)ΔE 13.37, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#A9B318
Analogous#185CB3, #7018B3
Triadic#B32218, #18B322
Split complementary#B37018, #5BB318
Tetradic#B3185C, #A9B318, #18B370

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#A9A4F3
Lighter +30%#7F77ED
Lighter +20%#544AE7
Lighter +10%#2B1EE0
Darker −10%#191286
Darker −20%#110C59
Darker −30%#08062C
Darker −40%#000000
More saturated +25%#0D00CB
Less saturated −25%#38319A

Channel breakdown

R34
G24
B179
Red34 (13.3%)
Green24 (9.4%)
Blue179 (70.2%)
Hue243.87°
Saturation (HSL)76.35%
Lightness39.8%
Dominant channelBlue
Hex per channelR 22 · G 18 · B B3

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Every value on this page was computed from “2218b3” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.