Colour

#57808F

#57808F
Cyan
Dark
Nearest: Slate grey

#57808F is a cyan with RGB values 87, 128, 143 and HSL 196°, 24%, 45%. It is a dark colour, so black text on it reaches 4.9:1 contrast (AA for normal text). The nearest named colour is Slate grey.

Colour values

#57808F#57808F

HEX#57808F

RGBrgb(87, 128, 143)

RGB (0–1)0.3412, 0.502, 0.5608

RGB percentages34.1%, 50.2%, 56.1%

HSLhsl(196.1, 24.3%, 45.1%)

HSV / HSBhsv(196.1, 39.2%, 56.1%)

CMYK39.2%, 10.5%, 0%, 43.9%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer5,734,543

CSS custom property--colour: #57808F;

Brightness & contrast

Relative luminance0.19448WCAG 2.x, 0 is black and 1 is white

Perceived brightness119.2 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 4.89:1

Contrast with white4.29:1WCAG normal text: Fail

Contrast with black4.89:1WCAG normal text: AA

Greyscale equivalent#787878

Inverted#A87F70

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#777E90no red cones; affects about 1% of men; ΔE 11.8 from the original

Deuteranopia#6F778Fno green cones; the most common form, about 1% of men; ΔE 12.8 from the original

Tritanopia#428585no blue cones; rare, and affects men and women equally; ΔE 12.6 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text4.29:1WCAG large text: AA

Contrast with black, large text4.89:1WCAG large text: AAA

Named colours

Slate grey · ΔE 8.4 Light slate grey · ΔE 9.3 Cadetblue · ΔE 14.7 Gray · ΔE 16.4 Dim grey · ΔE 17.6 Teal · ΔE 19.4

Nearest named CSS colourSlate grey (#708090)ΔE 8.43, clearly different but related

Hue familycyan

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#8F6657

Analogous#578F82, #57648F

Triadic#8F5780, #808F57

Split complementary#8F5764, #8F8257

Tetradic#82578F, #8F6657, #648F57

Tints, shades & saturation

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

Lighter +40%#D0DDE2

Lighter +30%#B0C7CF

Lighter +20%#90B0BC

Lighter +10%#7199A8

Darker −10%#44646F

Darker −20%#304750

Darker −30%#1D2B30

Darker −40%#0A0E10

More saturated +25%#3A8DAC

Less saturated −25%#737373

Channel breakdown

R87

G128

B143

Red87 (34.1%)

Green128 (50.2%)

Blue143 (56.1%)

Hue196.07°

Saturation (HSL)24.35%

Lightness45.1%

Dominant channelBlue

Hex per channelR 57 · G 80 · B 8F

Keep nerding

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#57808F

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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