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Recognised as Colour

#306CAF

  • #306CAF
  • Blue
  • Dark
  • Nearest: Steel blue

#306CAF is a blue with RGB values 48, 108, 175 and HSL 212°, 57%, 44%. It is a dark colour, so white text on it reaches 5.4:1 contrast (AA for normal text). The nearest named colour is Steel blue.

Colour values

#306CAF#306CAF
HEX#306CAF
RGBrgb(48, 108, 175)
RGB (0–1)0.1882, 0.4235, 0.6863
RGB percentages18.8%, 42.4%, 68.6%
HSLhsl(211.7, 57%, 43.7%)
HSV / HSBhsv(211.7, 72.6%, 68.6%)
CMYK72.6%, 38.3%, 0%, 31.4%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,173,551
CSS custom property--colour: #306CAF;

Brightness & contrast

Relative luminance0.14449WCAG 2.x, 0 is black and 1 is white
Perceived brightness105 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 5.4:1
Contrast with white5.4:1WCAG normal text: AA
Contrast with black3.89:1WCAG normal text: Fail
Greyscale equivalent#646464
Inverted#CF9350

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#4D71B2no red cones; affects about 1% of men; ΔE 5.2 from the original
Deuteranopia#3A65AEno green cones; the most common form, about 1% of men; ΔE 6.3 from the original
Tritanopia#007C85no blue cones; rare, and affects men and women equally; ΔE 40.4 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text5.4:1WCAG large text: AAA
Contrast with black, large text3.89:1WCAG large text: AA

Named colours

Steel blue · ΔE 14.2Cornflower blue · ΔE 19.7Dark slateblue · ΔE 26.4Dodgerblue · ΔE 27.2Slate grey · ΔE 32.3Light slate grey · ΔE 32.7
Nearest named CSS colourSteel blue (#4682B4)ΔE 14.18, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#AF7330
Analogous#30ACAF, #3330AF
Triadic#AF306C, #6CAF30
Split complementary#AF3330, #ACAF30
Tetradic#AF30AC, #AF7330, #30AF33

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#BED4ED
Lighter +30%#96BAE2
Lighter +20%#6EA0D7
Lighter +10%#4685CC
Darker −10%#255387
Darker −20%#1A3B5F
Darker −30%#0F2237
Darker −40%#04090F
More saturated +25%#146ACB
Less saturated −25%#4C6E93

Channel breakdown

R48
G108
B175
Red48 (18.8%)
Green108 (42.4%)
Blue175 (68.6%)
Hue211.65°
Saturation (HSL)56.95%
Lightness43.73%
Dominant channelBlue
Hex per channelR 30 · G 6C · B AF

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Every value on this page was computed from “306caf” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.