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Recognised as Colour

#305BDE

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

#305BDE is a blue with RGB values 48, 91, 222 and HSL 225°, 73%, 53%. It is a dark colour, so white text on it reaches 5.7:1 contrast (AA for normal text). The nearest named colour is Royal blue.

Colour values

#305BDE#305BDE
HEX#305BDE
RGBrgb(48, 91, 222)
RGB (0–1)0.1882, 0.3569, 0.8706
RGB percentages18.8%, 35.7%, 87.1%
HSLhsl(225.2, 72.5%, 52.9%)
HSV / HSBhsv(225.2, 78.4%, 87.1%)
CMYK78.4%, 59%, 0%, 12.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,169,246
CSS custom property--colour: #305BDE;

Brightness & contrast

Relative luminance0.13384WCAG 2.x, 0 is black and 1 is white
Perceived brightness105.7 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 5.71:1
Contrast with white5.71:1WCAG normal text: AA
Contrast with black3.68:1WCAG normal text: Fail
Greyscale equivalent#5B5B5B
Inverted#CFA421

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#006FE2no red cones; affects about 1% of men; ΔE 15.7 from the original
Deuteranopia#005FDBno green cones; the most common form, about 1% of men; ΔE 6.5 from the original
Tritanopia#007C94no blue cones; rare, and affects men and women equally; ΔE 72.2 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text5.71:1WCAG large text: AAA
Contrast with black, large text3.68:1WCAG large text: AA

Named colours

Royal blue · ΔE 9.3Medium slateblue · ΔE 13.7Slate blue · ΔE 13.8Medium purple · ΔE 24.3Rebecca purple · ΔE 28.1Dodgerblue · ΔE 28.4
Nearest named CSS colourRoyal blue (#4169E1)ΔE 9.3, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#DEB330
Analogous#30B2DE, #5C30DE
Triadic#DE305B, #5BDE30
Split complementary#DE5C30, #B2DE30
Tetradic#DE30B2, #DEB330, #30DE5C

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#E0E6FA
Lighter +30%#B4C4F3
Lighter +20%#88A1EC
Lighter +10%#5C7EE5
Darker −10%#1E45BD
Darker −20%#173591
Darker −30%#102565
Darker −40%#091539
More saturated +25%#124CFC
Less saturated −25%#4E6AC0

Channel breakdown

R48
G91
B222
Red48 (18.8%)
Green91 (35.7%)
Blue222 (87.1%)
Hue225.17°
Saturation (HSL)72.5%
Lightness52.94%
Dominant channelBlue
Hex per channelR 30 · G 5B · B DE

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