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Colour

#305DC1

  • #305DC1
  • Blue
  • Dark
  • Nearest: Royal blue

#305DC1 is a blue with RGB values 48, 93, 193 and HSL 221°, 60%, 47%. It is a dark colour, so white text on it reaches 6.1:1 contrast (AA for normal text). The nearest named colour is Royal blue.

Colour values

#305DC1#305DC1
HEX#305DC1
RGBrgb(48, 93, 193)
RGB (0–1)0.1882, 0.3647, 0.7569
RGB percentages18.8%, 36.5%, 75.7%
HSLhsl(221.4, 60.2%, 47.3%)
HSV / HSBhsv(221.4, 75.1%, 75.7%)
CMYK75.1%, 51.8%, 0%, 24.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,169,729
CSS custom property--colour: #305DC1;

Brightness & contrast

Relative luminance0.12307WCAG 2.x, 0 is black and 1 is white
Perceived brightness100.1 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 6.07:1
Contrast with white6.07:1WCAG normal text: AA
Contrast with black3.46:1WCAG normal text: Fail
Greyscale equivalent#5B5B5B
Inverted#CFA23E

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#1A69C5no red cones; affects about 1% of men; ΔE 9.2 from the original
Deuteranopia#005CBFno green cones; the most common form, about 1% of men; ΔE 3.9 from the original
Tritanopia#007586no blue cones; rare, and affects men and women equally; ΔE 57.3 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text6.07:1WCAG large text: AAA
Contrast with black, large text3.46:1WCAG large text: AA

Named colours

Royal blue · ΔE 12.1Slate blue · ΔE 16.4Dark slateblue · ΔE 19.3Dodgerblue · ΔE 21.4Medium purple · ΔE 22.4Cornflower blue · ΔE 24.1
Nearest named CSS colourRoyal blue (#4169E1)ΔE 12.11, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#C19430
Analogous#30A6C1, #4B30C1
Triadic#C1305D, #5DC130
Split complementary#C14B30, #A6C130
Tetradic#C130A6, #C19430, #30C14B

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#CBD7F2
Lighter +30%#A2B8E8
Lighter +20%#7998DE
Lighter +10%#5079D4
Darker −10%#264998
Darker −20%#1C366F
Darker −30%#122246
Darker −40%#070E1E
More saturated +25%#1252DF
Less saturated −25%#4E68A3

Channel breakdown

R48
G93
B193
Red48 (18.8%)
Green93 (36.5%)
Blue193 (75.7%)
Hue221.38°
Saturation (HSL)60.17%
Lightness47.25%
Dominant channelBlue
Hex per channelR 30 · G 5D · B C1

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Every value on this page was computed from “305dc1” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.