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Recognised as Colour

#223F82

  • #223F82
  • Blue
  • Dark
  • Nearest: Dark slateblue

#223F82 is a blue with RGB values 34, 63, 130 and HSL 222°, 59%, 32%. It is a dark colour, so white text on it reaches 10:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#223F82#223F82
HEX#223F82
RGBrgb(34, 63, 130)
RGB (0–1)0.1333, 0.2471, 0.5098
RGB percentages13.3%, 24.7%, 51%
HSLhsl(221.9, 58.5%, 32.2%)
HSV / HSBhsv(221.9, 73.8%, 51%)
CMYK73.8%, 51.5%, 0%, 49%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,244,482
CSS custom property--colour: #223F82;

Brightness & contrast

Relative luminance0.05507WCAG 2.x, 0 is black and 1 is white
Perceived brightness67.8 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 9.99:1
Contrast with white9.99:1WCAG normal text: AAA
Contrast with black2.1:1WCAG normal text: Fail
Greyscale equivalent#3E3E3E
Inverted#DDC07D

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#184784no red cones; affects about 1% of men; ΔE 6.8 from the original
Deuteranopia#003E81no green cones; the most common form, about 1% of men; ΔE 3.6 from the original
Tritanopia#004F5Ano 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 text9.99:1WCAG large text: AAA
Contrast with black, large text2.1:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 12.5Midnight blue · ΔE 23.3Rebecca purple · ΔE 30Steel blue · ΔE 31.5Slate blue · ΔE 32.7Royal blue · ΔE 33.6
Nearest named CSS colourDark slateblue (#483D8B)ΔE 12.51, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#826522
Analogous#226F82, #352282
Triadic#82223F, #3F8222
Split complementary#823522, #6F8222
Tetradic#82226F, #826522, #228235

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#8EA8E2
Lighter +30%#6688D7
Lighter +20%#3E69CC
Lighter +10%#2D53AA
Darker −10%#172B5A
Darker −20%#0D1831
Darker −30%#020409
Darker −40%#000000
More saturated +25%#0D3796
Less saturated −25%#36476E

Channel breakdown

R34
G63
B130
Red34 (13.3%)
Green63 (24.7%)
Blue130 (51%)
Hue221.88°
Saturation (HSL)58.54%
Lightness32.16%
Dominant channelBlue
Hex per channelR 22 · G 3F · B 82

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Every value on this page was computed from “223f82” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.