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Recognised as Colour

#30566D

  • #30566D
  • Blue
  • Dark
  • Nearest: Dark slate grey

#30566D is a blue with RGB values 48, 86, 109 and HSL 203°, 39%, 31%. It is a dark colour, so white text on it reaches 7.8:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.

Colour values

#30566D#30566D
HEX#30566D
RGBrgb(48, 86, 109)
RGB (0–1)0.1882, 0.3373, 0.4275
RGB percentages18.8%, 33.7%, 42.7%
HSLhsl(202.6, 38.9%, 30.8%)
HSV / HSBhsv(202.6, 56%, 42.7%)
CMYK56%, 21.1%, 0%, 57.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,167,853
CSS custom property--colour: #30566D;

Brightness & contrast

Relative luminance0.08388WCAG 2.x, 0 is black and 1 is white
Perceived brightness79.9 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 7.84:1
Contrast with white7.84:1WCAG normal text: AAA
Contrast with black2.68:1WCAG normal text: Fail
Greyscale equivalent#505050
Inverted#CFA992

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#4B556Eno red cones; affects about 1% of men; ΔE 9.1 from the original
Deuteranopia#434F6Dno green cones; the most common form, about 1% of men; ΔE 9.9 from the original
Tritanopia#095C5Eno blue cones; rare, and affects men and women equally; ΔE 17.9 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text7.84:1WCAG large text: AAA
Contrast with black, large text2.68:1WCAG large text: Fail

Named colours

Dark slate grey · ΔE 15.1Slate grey · ΔE 19.7Dim grey · ΔE 20.8Light slate grey · ΔE 22.4Steel blue · ΔE 23.2Gray · ΔE 26.3
Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 15.07, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#6D4730
Analogous#306D66, #30376D
Triadic#6D3056, #566D30
Split complementary#6D3037, #6D6630
Tetradic#66306D, #6D4730, #376D30

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#98BCD1
Lighter +30%#74A5C2
Lighter +20%#518DB2
Lighter +10%#407290
Darker −10%#203A4A
Darker −20%#111E26
Darker −30%#010203
Darker −40%#000000
More saturated +25%#1C5B81
Less saturated −25%#445159

Channel breakdown

R48
G86
B109
Red48 (18.8%)
Green86 (33.7%)
Blue109 (42.7%)
Hue202.62°
Saturation (HSL)38.85%
Lightness30.78%
Dominant channelBlue
Hex per channelR 30 · G 56 · B 6D

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Every value on this page was computed from “30566d” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.