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Colour

#57A8B6

  • #57A8B6
  • Cyan
  • Dark
  • Nearest: Cadetblue

#57A8B6 is a cyan with RGB values 87, 168, 182 and HSL 189°, 39%, 53%. It is a dark colour, so black text on it reaches 7.7:1 contrast (AAA for normal text). The nearest named colour is Cadetblue.

Colour values

#57A8B6#57A8B6
HEX#57A8B6
RGBrgb(87, 168, 182)
RGB (0–1)0.3412, 0.6588, 0.7137
RGB percentages34.1%, 65.9%, 71.4%
HSLhsl(188.8, 39.4%, 52.7%)
HSV / HSBhsv(188.8, 52.2%, 71.4%)
CMYK52.2%, 7.7%, 0%, 28.6%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer5,744,822
CSS custom property--colour: #57A8B6;

Brightness & contrast

Relative luminance0.33409WCAG 2.x, 0 is black and 1 is white
Perceived brightness150.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 7.68:1
Contrast with white2.73:1WCAG normal text: Fail
Contrast with black7.68:1WCAG normal text: AAA
Greyscale equivalent#989898
Inverted#A85749

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#9CA3B7no red cones; affects about 1% of men; ΔE 22.9 from the original
Deuteranopia#8D98B6no green cones; the most common form, about 1% of men; ΔE 23.7 from the original
Tritanopia#12AFACno blue cones; rare, and affects men and women equally; ΔE 16.7 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text2.73:1WCAG large text: Fail
Contrast with black, large text7.68:1WCAG large text: AAA

Named colours

Cadetblue · ΔE 8.2Dark cyan · ΔE 16.8Sky blue · ΔE 17.2Light seagreen · ΔE 18.8Teal · ΔE 19.2Light slate grey · ΔE 20.8
Nearest named CSS colourCadetblue (#5F9EA0)ΔE 8.18, clearly different but related
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#B66557
Analogous#57B695, #5778B6
Triadic#B657A8, #A8B657
Split complementary#B65778, #B69557
Tetradic#9557B6, #B66557, #78B657

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#E5F2F4
Lighter +30%#C2DFE4
Lighter +20%#9ECDD5
Lighter +10%#7BBAC5
Darker −10%#428B98
Darker −20%#336B74
Darker −30%#234A51
Darker −40%#142A2D
More saturated +25%#39BDD4
Less saturated −25%#759398

Channel breakdown

R87
G168
B182
Red87 (34.1%)
Green168 (65.9%)
Blue182 (71.4%)
Hue188.84°
Saturation (HSL)39.42%
Lightness52.75%
Dominant channelBlue
Hex per channelR 57 · G A8 · B B6

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Every value on this page was computed from “57a8b6” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.