Nerdulator> put something in

Recognised as Colour

#4581DC

  • #4581DC
  • Blue
  • Dark
  • Nearest: Cornflower blue

#4581DC is a blue with RGB values 69, 129, 220 and HSL 216°, 68%, 57%. It is a dark colour, so black text on it reaches 5.4:1 contrast (AA for normal text). The nearest named colour is Cornflower blue.

Colour values

#4581DC#4581DC
HEX#4581DC
RGBrgb(69, 129, 220)
RGB (0–1)0.2706, 0.5059, 0.8627
RGB percentages27.1%, 50.6%, 86.3%
HSLhsl(216.2, 68.3%, 56.7%)
HSV / HSBhsv(216.2, 68.6%, 86.3%)
CMYK68.6%, 41.4%, 0%, 13.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer4,555,228
CSS custom property--colour: #4581DC;

Brightness & contrast

Relative luminance0.22133WCAG 2.x, 0 is black and 1 is white
Perceived brightness129.3 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 5.43:1
Contrast with white3.87:1WCAG normal text: Fail
Contrast with black5.43:1WCAG normal text: AA
Greyscale equivalent#7B7B7B
Inverted#BA7E23

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#5689E0no red cones; affects about 1% of men; ΔE 4.3 from the original
Deuteranopia#3E7BDAno green cones; the most common form, about 1% of men; ΔE 3.6 from the original
Tritanopia#0096A4no blue cones; rare, and affects men and women equally; ΔE 52 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text3.87:1WCAG large text: AA
Contrast with black, large text5.43:1WCAG large text: AAA

Named colours

Cornflower blue · ΔE 8.3Dodgerblue · ΔE 12.3Royal blue · ΔE 21.7Steel blue · ΔE 24.6Medium purple · ΔE 26.8Slate blue · ΔE 27.9
Nearest named CSS colourCornflower blue (#6495ED)ΔE 8.34, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#DCA045
Analogous#45CDDC, #5445DC
Triadic#DC4581, #81DC45
Split complementary#DC5445, #CDDC45
Tetradic#DC45CD, #DCA045, #45DC54

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#F1F5FC
Lighter +30%#C6D8F4
Lighter +20%#9BBBEC
Lighter +10%#709EE4
Darker −10%#2666C8
Darker −20%#1E509D
Darker −30%#163A72
Darker −40%#0D2548
More saturated +25%#297BF8
Less saturated −25%#6187C0

Channel breakdown

R69
G129
B220
Red69 (27.1%)
Green129 (50.6%)
Blue220 (86.3%)
Hue216.16°
Saturation (HSL)68.33%
Lightness56.67%
Dominant channelBlue
Hex per channelR 45 · G 81 · B DC

Keep nerding

Every link below is a page Nerdulator can generate from what it already knows about this value.

Nerdulate something else

Nothing in mind? Surprise me · today’s page

Every value on this page was computed from “4581dc” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.