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Colour

#0450DD

  • #0450DD
  • Blue
  • Dark
  • Nearest: Royal blue

#0450DD is a blue with RGB values 4, 80, 221 and HSL 219°, 96%, 44%. It is a dark colour, so white text on it reaches 6.6:1 contrast (AA for normal text). The nearest named colour is Royal blue.

Colour values

#0450DD#0450DD
HEX#0450DD
RGBrgb(4, 80, 221)
RGB (0–1)0.0157, 0.3137, 0.8667
RGB percentages1.6%, 31.4%, 86.7%
HSLhsl(219, 96.4%, 44.1%)
HSV / HSBhsv(219, 98.2%, 86.7%)
CMYK98.2%, 63.8%, 0%, 13.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer282,845
CSS custom property--colour: #0450DD;

Brightness & contrast

Relative luminance0.10984WCAG 2.x, 0 is black and 1 is white
Perceived brightness96.6 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 6.57:1
Contrast with white6.57:1WCAG normal text: AA
Contrast with black3.2:1WCAG normal text: Fail
Greyscale equivalent#4A4A4A
Inverted#FBAF22

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0067E2no red cones; affects about 1% of men; ΔE 16.4 from the original
Deuteranopia#0054DAno green cones; the most common form, about 1% of men; ΔE 4.8 from the original
Tritanopia#00768Fno blue cones; rare, and affects men and women equally; ΔE 78 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text6.57:1WCAG large text: AAA
Contrast with black, large text3.2:1WCAG large text: AA

Named colours

Royal blue · ΔE 17.3Medium slateblue · ΔE 17.5Slate blue · ΔE 19.7Dark blue · ΔE 29.5Medium purple · ΔE 30.6Rebecca purple · ΔE 30.8
Nearest named CSS colourRoyal blue (#4169E1)ΔE 17.32, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#DD9104
Analogous#04BCDD, #2504DD
Triadic#DD0450, #50DD04
Split complementary#DD2504, #BCDD04
Tetradic#DD04BC, #DD9104, #04DD25

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#AFCBFE
Lighter +30%#7DAAFD
Lighter +20%#4B89FC
Lighter +10%#1968FB
Darker −10%#033EAB
Darker −20%#022C79
Darker −30%#011A47
Darker −40%#000715
More saturated +25%#004FE1
Less saturated −25%#2058C1

Channel breakdown

R4
G80
B221
Red4 (1.6%)
Green80 (31.4%)
Blue221 (86.7%)
Hue218.99°
Saturation (HSL)96.44%
Lightness44.12%
Dominant channelBlue
Hex per channelR 04 · G 50 · B DD

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Every value on this page was computed from “0450dd” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.