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Recognised as Colour

#557CC2

  • #557CC2
  • Blue
  • Dark
  • Nearest: Cornflower blue

#557CC2 is a blue with RGB values 85, 124, 194 and HSL 219°, 47%, 55%. It is a dark colour, so black text on it reaches 5:1 contrast (AA for normal text). The nearest named colour is Cornflower blue.

Colour values

#557CC2#557CC2
HEX#557CC2
RGBrgb(85, 124, 194)
RGB (0–1)0.3333, 0.4863, 0.7608
RGB percentages33.3%, 48.6%, 76.1%
HSLhsl(218.5, 47.2%, 54.7%)
HSV / HSBhsv(218.5, 56.2%, 76.1%)
CMYK56.2%, 36.1%, 0%, 23.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer5,602,498
CSS custom property--colour: #557CC2;

Brightness & contrast

Relative luminance0.20242WCAG 2.x, 0 is black and 1 is white
Perceived brightness124.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 5.05:1
Contrast with white4.16:1WCAG normal text: Fail
Contrast with black5.05:1WCAG normal text: AA
Greyscale equivalent#797979
Inverted#AA833D

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#5F82C5no red cones; affects about 1% of men; ΔE 3.2 from the original
Deuteranopia#5278C1no green cones; the most common form, about 1% of men; ΔE 2.5 from the original
Tritanopia#078B96no blue cones; rare, and affects men and women equally; ΔE 42.7 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text4.16:1WCAG large text: AA
Contrast with black, large text5.05:1WCAG large text: AAA

Named colours

Cornflower blue · ΔE 13.2Steel blue · ΔE 14.2Dodgerblue · ΔE 24Dark slateblue · ΔE 28.5Medium purple · ΔE 31.2Light slate grey · ΔE 31.3
Nearest named CSS colourCornflower blue (#6495ED)ΔE 13.2, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#C29B55
Analogous#55B3C2, #6555C2
Triadic#C2557C, #7CC255
Split complementary#C26455, #B3C255
Tetradic#C255B2, #C29B55, #55C264

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#EBF0F8
Lighter +30%#C6D3EA
Lighter +20%#A0B6DD
Lighter +10%#7B99CF
Darker −10%#3C63A8
Darker −20%#2F4D82
Darker −30%#21375D
Darker −40%#142037
More saturated +25%#3874DF
Less saturated −25%#7284A5

Channel breakdown

R85
G124
B194
Red85 (33.3%)
Green124 (48.6%)
Blue194 (76.1%)
Hue218.53°
Saturation (HSL)47.19%
Lightness54.71%
Dominant channelBlue
Hex per channelR 55 · G 7C · B C2

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Every value on this page was computed from “557cc2” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.