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Colour

#22304A

  • #22304A
  • Blue
  • Dark
  • Nearest: Dark slate grey

#22304A is a blue with RGB values 34, 48, 74 and HSL 219°, 37%, 21%. It is a dark colour, so white text on it reaches 13.2:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.

Colour values

#22304A#22304A
HEX#22304A
RGBrgb(34, 48, 74)
RGB (0–1)0.1333, 0.1882, 0.2902
RGB percentages13.3%, 18.8%, 29%
HSLhsl(219, 37%, 21.2%)
HSV / HSBhsv(219, 54.1%, 29%)
CMYK54.1%, 35.1%, 0%, 71%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,240,586
CSS custom property--colour: #22304A;

Brightness & contrast

Relative luminance0.02948WCAG 2.x, 0 is black and 1 is white
Perceived brightness48.2 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 13.21:1
Contrast with white13.21:1WCAG normal text: AAA
Contrast with black1.59:1WCAG normal text: Fail
Greyscale equivalent#2F2F2F
Inverted#DDCFB5

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#26324Bno red cones; affects about 1% of men; ΔE 1.4 from the original
Deuteranopia#222E49no green cones; the most common form, about 1% of men; ΔE 1.3 from the original
Tritanopia#113639no blue cones; rare, and affects men and women equally; ΔE 19 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text13.21:1WCAG large text: AAA
Contrast with black, large text1.59:1WCAG large text: Fail

Named colours

Dark slate grey · ΔE 23.2Black · ΔE 26.9Dim grey · ΔE 30.5Slate grey · ΔE 34.2Dark slateblue · ΔE 35.4Steel blue · ΔE 36.3
Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 23.24, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#4A3C22
Analogous#22444A, #28224A
Triadic#4A2230, #304A22
Split complementary#4A2822, #444A22
Tetradic#4A2244, #4A3C22, #224A28

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#7791C1
Lighter +30%#5475B1
Lighter +20%#425D90
Lighter +10%#32476D
Darker −10%#121927
Darker −20%#020304
Darker −30%#000000
Darker −40%#000000
More saturated +25%#152C58
Less saturated −25%#30343D

Channel breakdown

R34
G48
B74
Red34 (13.3%)
Green48 (18.8%)
Blue74 (29%)
Hue219°
Saturation (HSL)37.04%
Lightness21.18%
Dominant channelBlue
Hex per channelR 22 · G 30 · B 4A

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Every value on this page was computed from “22304a” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.