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Recognised as Colour

#4577CD

  • #4577CD
  • Blue
  • Dark
  • Nearest: Cornflower blue

#4577CD is a blue with RGB values 69, 119, 205 and HSL 218°, 58%, 54%. It is a dark colour, so black text on it reaches 4.8:1 contrast (AA for normal text). The nearest named colour is Cornflower blue.

Colour values

#4577CD#4577CD
HEX#4577CD
RGBrgb(69, 119, 205)
RGB (0–1)0.2706, 0.4667, 0.8039
RGB percentages27.1%, 46.7%, 80.4%
HSLhsl(217.9, 57.6%, 53.7%)
HSV / HSBhsv(217.9, 66.3%, 80.4%)
CMYK66.3%, 42%, 0%, 19.6%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer4,552,653
CSS custom property--colour: #4577CD;

Brightness & contrast

Relative luminance0.18867WCAG 2.x, 0 is black and 1 is white
Perceived brightness120.5 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 4.77:1
Contrast with white4.4:1WCAG normal text: Fail
Contrast with black4.77:1WCAG normal text: AA
Greyscale equivalent#737373
Inverted#BA8832

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#4F7FD0no red cones; affects about 1% of men; ΔE 4.5 from the original
Deuteranopia#3972CBno green cones; the most common form, about 1% of men; ΔE 2.9 from the original
Tritanopia#008B98no blue cones; rare, and affects men and women equally; ΔE 50.3 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text4.4:1WCAG large text: AA
Contrast with black, large text4.77:1WCAG large text: AAA

Named colours

Cornflower blue · ΔE 11.5Dodgerblue · ΔE 16.4Royal blue · ΔE 22.1Steel blue · ΔE 23.1Dark slateblue · ΔE 25.9Medium purple · ΔE 26.2
Nearest named CSS colourCornflower blue (#6495ED)ΔE 11.52, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#CD9B45
Analogous#45BBCD, #5745CD
Triadic#CD4577, #77CD45
Split complementary#CD5745, #BBCD45
Tetradic#CD45BB, #CD9B45, #45CD57

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#E6EDF8
Lighter +30%#BECFED
Lighter +20%#95B2E3
Lighter +10%#6D94D8
Darker −10%#2F5EB0
Darker −20%#244988
Darker −30%#1A335F
Darker −40%#0F1E37
More saturated +25%#276FEB
Less saturated −25%#627FB0

Channel breakdown

R69
G119
B205
Red69 (27.1%)
Green119 (46.7%)
Blue205 (80.4%)
Hue217.94°
Saturation (HSL)57.63%
Lightness53.73%
Dominant channelBlue
Hex per channelR 45 · G 77 · B CD

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Every value on this page was computed from “4577cd” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.