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Recognised as Colour

#57B5AE

  • #57B5AE
  • Cyan
  • Dark
  • Nearest: Light seagreen

#57B5AE is a cyan with RGB values 87, 181, 174 and HSL 176°, 39%, 53%. It is a dark colour, so black text on it reaches 8.6:1 contrast (AAA for normal text). The nearest named colour is Light seagreen.

Colour values

#57B5AE#57B5AE
HEX#57B5AE
RGBrgb(87, 181, 174)
RGB (0–1)0.3412, 0.7098, 0.6824
RGB percentages34.1%, 71%, 68.2%
HSLhsl(175.5, 38.8%, 52.5%)
HSV / HSBhsv(175.5, 51.9%, 71%)
CMYK51.9%, 0%, 3.9%, 29%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer5,748,142
CSS custom property--colour: #57B5AE;

Brightness & contrast

Relative luminance0.3813WCAG 2.x, 0 is black and 1 is white
Perceived brightness157.9 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 8.63:1
Contrast with white2.43:1WCAG normal text: Fail
Contrast with black8.63:1WCAG normal text: AAA
Greyscale equivalent#A1A1A1
Inverted#A84A51

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#ACADAEno red cones; affects about 1% of men; ΔE 29.8 from the original
Deuteranopia#9DA1AFno green cones; the most common form, about 1% of men; ΔE 31.1 from the original
Tritanopia#17B9B3no blue cones; rare, and affects men and women equally; ΔE 9.6 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text2.43:1WCAG large text: Fail
Contrast with black, large text8.63:1WCAG large text: AAA

Named colours

Light seagreen · ΔE 8.4Medium turquoise · ΔE 12.3Cadetblue · ΔE 12.3Dark turquoise · ΔE 15.4Dark cyan · ΔE 16.5Medium aquamarine · ΔE 17.6
Nearest named CSS colourLight seagreen (#20B2AA)ΔE 8.45, clearly different but related
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#B5575E
Analogous#57B57F, #578DB5
Triadic#AE57B5, #B5AE57
Split complementary#B5578D, #B57F57
Tetradic#7F57B5, #B5575E, #8DB557

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#E5F3F2
Lighter +30%#C1E4E1
Lighter +20%#9ED4D0
Lighter +10%#7AC5BF
Darker −10%#429790
Darker −20%#33736E
Darker −30%#23504D
Darker −40%#142C2B
More saturated +25%#39D3C8
Less saturated −25%#759794

Channel breakdown

R87
G181
B174
Red87 (34.1%)
Green181 (71%)
Blue174 (68.2%)
Hue175.53°
Saturation (HSL)38.84%
Lightness52.55%
Dominant channelGreen
Hex per channelR 57 · G B5 · B AE

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Every value on this page was computed from “57b5ae” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.