Recognised as Colour

#558EAD

#558EAD
Blue
Dark
Nearest: Steel blue

#558EAD is a blue with RGB values 85, 142, 173 and HSL 201°, 35%, 51%. It is a dark colour, so black text on it reaches 5.9:1 contrast (AA for normal text). The nearest named colour is Steel blue.

Colour values

#558EAD#558EAD

HEX#558EAD

RGBrgb(85, 142, 173)

RGB (0–1)0.3333, 0.5569, 0.6784

RGB percentages33.3%, 55.7%, 67.8%

HSLhsl(201.1, 34.9%, 50.6%)

HSV / HSBhsv(201.1, 50.9%, 67.8%)

CMYK50.9%, 17.9%, 0%, 32.2%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer5,607,085

CSS custom property--colour: #558EAD;

Brightness & contrast

Relative luminance0.24294WCAG 2.x, 0 is black and 1 is white

Perceived brightness131.9 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 5.86:1

Contrast with white3.58:1WCAG normal text: Fail

Contrast with black5.86:1WCAG normal text: AA

Greyscale equivalent#848484

Inverted#AA7152

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#7F8DAFno red cones; affects about 1% of men; ΔE 13.2 from the original

Deuteranopia#7383ADno green cones; the most common form, about 1% of men; ΔE 14.6 from the original

Tritanopia#259698no blue cones; rare, and affects men and women equally; ΔE 22.8 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text3.58:1WCAG large text: AA

Contrast with black, large text5.86:1WCAG large text: AAA

Named colours

Steel blue · ΔE 12.3 Light slate grey · ΔE 13.4 Slate grey · ΔE 14.3 Cadetblue · ΔE 18.2 Sky blue · ΔE 23.4 Light skyblue · ΔE 24.2

Nearest named CSS colourSteel blue (#4682B4)ΔE 12.32, a distinctly different colour

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

base +30°+90°+120°+180°+210°+240°+270°+330°

Complementary#AD7455

Analogous#55ADA0, #5562AD

Triadic#AD558E, #8EAD55

Split complementary#AD5562, #ADA055

Tetradic#A055AD, #AD7455, #62AD55

Tints, shades & saturation

+40%+30%+20%+10%base -10%-20%-30%-40%

Lighter +40%#DFE9EF

Lighter +30%#BCD3DF

Lighter +20%#9ABCCE

Lighter +10%#77A5BE

Darker −10%#43728C

Darker −20%#335669

Darker −30%#223A47

Darker −40%#121E24

More saturated +25%#3597CD

Less saturated −25%#74858E

Channel breakdown

R85

G142

B173

Red85 (33.3%)

Green142 (55.7%)

Blue173 (67.8%)

Hue201.14°

Saturation (HSL)34.92%

Lightness50.59%

Dominant channelBlue

Hex per channelR 55 · G 8E · B AD

Keep nerding

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

#558EAD

Colour values

Brightness & contrast

Colour vision & accessibility

Named colours

Colour harmonies

Tints, shades & saturation

Channel breakdown

Keep nerding

Harmonies

Lighter and darker

Similar named colours

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