Colour

#557C83

#557C83
Cyan
Dark
Nearest: Slate grey

#557C83 is a cyan with RGB values 85, 124, 131 and HSL 189°, 21%, 42%. It is a dark colour, so black text on it reaches 4.6:1 contrast (AA for normal text). The nearest named colour is Slate grey.

Colour values

#557C83#557C83

HEX#557C83

RGBrgb(85, 124, 131)

RGB (0–1)0.3333, 0.4863, 0.5137

RGB percentages33.3%, 48.6%, 51.4%

HSLhsl(189.1, 21.3%, 42.4%)

HSV / HSBhsv(189.1, 35.1%, 51.4%)

CMYK35.1%, 5.3%, 0%, 48.6%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer5,602,435

CSS custom property--colour: #557C83;

Brightness & contrast

Relative luminance0.17985WCAG 2.x, 0 is black and 1 is white

Perceived brightness114.6 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 4.6:1

Contrast with white4.57:1WCAG normal text: AA

Contrast with black4.6:1WCAG normal text: AA

Greyscale equivalent#747474

Inverted#AA837C

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#757983no red cones; affects about 1% of men; ΔE 12.6 from the original

Deuteranopia#6E7383no green cones; the most common form, about 1% of men; ΔE 13.5 from the original

Tritanopia#447F7Eno blue cones; rare, and affects men and women equally; ΔE 8.2 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text4.57:1WCAG large text: AAA

Contrast with black, large text4.6:1WCAG large text: AAA

Named colours

Slate grey · ΔE 10.4 Light slate grey · ΔE 11.8 Cadetblue · ΔE 14.1 Gray · ΔE 14.9 Dim grey · ΔE 15.2 Teal · ΔE 17.2

Nearest named CSS colourSlate grey (#708090)ΔE 10.44, a distinctly different colour

Hue familycyan

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#835C55

Analogous#558373, #556583

Triadic#83557C, #7C8355

Split complementary#835565, #837355

Tetradic#735583, #835C55, #658355

Tints, shades & saturation

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

Lighter +40%#C8D9DC

Lighter +30%#A9C3C8

Lighter +20%#8BADB3

Lighter +10%#6C979F

Darker −10%#415F64

Darker −20%#2D4145

Darker −30%#192426

Darker −40%#050707

More saturated +25%#3A8F9E

Less saturated −25%#6C6C6C

Channel breakdown

R85

G124

B131

Red85 (33.3%)

Green124 (48.6%)

Blue131 (51.4%)

Hue189.13°

Saturation (HSL)21.3%

Lightness42.35%

Dominant channelBlue

Hex per channelR 55 · G 7C · B 83

Keep nerding

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

#557C83

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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