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Recognised as Colour

#57AB9E

  • #57AB9E
  • Cyan
  • Dark
  • Nearest: Light seagreen

#57AB9E is a cyan with RGB values 87, 171, 158 and HSL 171°, 33%, 51%. It is a dark colour, so black text on it reaches 7.7:1 contrast (AAA for normal text). The nearest named colour is Light seagreen.

Colour values

#57AB9E#57AB9E
HEX#57AB9E
RGBrgb(87, 171, 158)
RGB (0–1)0.3412, 0.6706, 0.6196
RGB percentages34.1%, 67.1%, 62%
HSLhsl(170.7, 33.3%, 50.6%)
HSV / HSBhsv(170.7, 49.1%, 67.1%)
CMYK49.1%, 0%, 7.6%, 32.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer5,745,566
CSS custom property--colour: #57AB9E;

Brightness & contrast

Relative luminance0.33621WCAG 2.x, 0 is black and 1 is white
Perceived brightness149.2 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 7.72:1
Contrast with white2.72:1WCAG normal text: Fail
Contrast with black7.72:1WCAG normal text: AAA
Greyscale equivalent#989898
Inverted#A85461

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#A4A39Eno red cones; affects about 1% of men; ΔE 28.5 from the original
Deuteranopia#97999Fno green cones; the most common form, about 1% of men; ΔE 29.3 from the original
Tritanopia#2EAEA7no 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 text2.72:1WCAG large text: Fail
Contrast with black, large text7.72:1WCAG large text: AAA

Named colours

Light seagreen · ΔE 10.2Cadetblue · ΔE 11.6Dark cyan · ΔE 14.8Medium turquoise · ΔE 16.6Medium aquamarine · ΔE 17.4Teal · ΔE 18
Nearest named CSS colourLight seagreen (#20B2AA)ΔE 10.23, a distinctly different colour
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#AB5764
Analogous#57AB74, #578EAB
Triadic#9E57AB, #AB9E57
Split complementary#AB578E, #AB7457
Tetradic#7457AB, #AB5764, #8EAB57

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#DFEFED
Lighter +30%#BDDED9
Lighter +20%#9BCDC5
Lighter +10%#79BCB2
Darker −10%#458A7F
Darker −20%#346860
Darker −30%#234641
Darker −40%#122421
More saturated +25%#38CBB4
Less saturated −25%#778B88

Channel breakdown

R87
G171
B158
Red87 (34.1%)
Green171 (67.1%)
Blue158 (62%)
Hue170.71°
Saturation (HSL)33.33%
Lightness50.59%
Dominant channelGreen
Hex per channelR 57 · G AB · B 9E

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Every value on this page was computed from “57ab9e” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.