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Recognised as Colour

#577EC6

  • #577EC6
  • Blue
  • Dark
  • Nearest: Cornflower blue

#577EC6 is a blue with RGB values 87, 126, 198 and HSL 219°, 49%, 56%. It is a dark colour, so black text on it reaches 5.2:1 contrast (AA for normal text). The nearest named colour is Cornflower blue.

Colour values

#577EC6#577EC6
HEX#577EC6
RGBrgb(87, 126, 198)
RGB (0–1)0.3412, 0.4941, 0.7765
RGB percentages34.1%, 49.4%, 77.6%
HSLhsl(218.9, 49.3%, 55.9%)
HSV / HSBhsv(218.9, 56.1%, 77.6%)
CMYK56.1%, 36.4%, 0%, 22.4%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer5,734,086
CSS custom property--colour: #577EC6;

Brightness & contrast

Relative luminance0.21025WCAG 2.x, 0 is black and 1 is white
Perceived brightness126.7 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 5.21:1
Contrast with white4.03:1WCAG normal text: Fail
Contrast with black5.21:1WCAG normal text: AA
Greyscale equivalent#7B7B7B
Inverted#A88139

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#6184C9no red cones; affects about 1% of men; ΔE 3.2 from the original
Deuteranopia#537AC4no green cones; the most common form, about 1% of men; ΔE 2 from the original
Tritanopia#098E99no blue cones; rare, and affects men and women equally; ΔE 44 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text4.03:1WCAG large text: AA
Contrast with black, large text5.21:1WCAG large text: AAA

Named colours

Cornflower blue · ΔE 11.9Steel blue · ΔE 15.1Dodgerblue · ΔE 22.8Dark slateblue · ΔE 28.7Medium purple · ΔE 30.3Royal blue · ΔE 30.5
Nearest named CSS colourCornflower blue (#6495ED)ΔE 11.89, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#C69F57
Analogous#57B5C6, #6857C6
Triadic#C6577E, #7EC657
Split complementary#C66857, #B5C657
Tetradic#C657B5, #C69F57, #57C668

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#EFF3FA
Lighter +30%#C9D6ED
Lighter +20%#A3B8E0
Lighter +10%#7D9BD3
Darker −10%#3B64AF
Darker −20%#2E4E89
Darker −30%#213863
Darker −40%#15233C
More saturated +25%#3B76E2
Less saturated −25%#7386AA

Channel breakdown

R87
G126
B198
Red87 (34.1%)
Green126 (49.4%)
Blue198 (77.6%)
Hue218.92°
Saturation (HSL)49.33%
Lightness55.88%
Dominant channelBlue
Hex per channelR 57 · G 7E · B C6

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Every value on this page was computed from “577ec6” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.