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Recognised as Colour

#57BB8E

  • #57BB8E
  • Cyan
  • Dark
  • Nearest: Medium aquamarine

#57BB8E is a cyan with RGB values 87, 187, 142 and HSL 153°, 42%, 54%. It is a dark colour, so black text on it reaches 8.9:1 contrast (AAA for normal text). The nearest named colour is Medium aquamarine.

Colour values

#57BB8E#57BB8E
HEX#57BB8E
RGBrgb(87, 187, 142)
RGB (0–1)0.3412, 0.7333, 0.5569
RGB percentages34.1%, 73.3%, 55.7%
HSLhsl(153, 42.4%, 53.7%)
HSV / HSBhsv(153, 53.5%, 73.3%)
CMYK53.5%, 0%, 24.1%, 26.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer5,749,646
CSS custom property--colour: #57BB8E;

Brightness & contrast

Relative luminance0.3952WCAG 2.x, 0 is black and 1 is white
Perceived brightness158.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 8.9:1
Contrast with white2.36:1WCAG normal text: Fail
Contrast with black8.9:1WCAG normal text: AAA
Greyscale equivalent#A2A2A2
Inverted#A84471

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#B8AF8Cno red cones; affects about 1% of men; ΔE 37.9 from the original
Deuteranopia#AAA491no green cones; the most common form, about 1% of men; ΔE 39 from the original
Tritanopia#33BBAFno blue cones; rare, and affects men and women equally; ΔE 18.5 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text2.36:1WCAG large text: Fail
Contrast with black, large text8.9:1WCAG large text: AAA

Named colours

Medium aquamarine · ΔE 8.9Medium seagreen · ΔE 13.7Dark seagreen · ΔE 16.9Sea green · ΔE 18.6Light seagreen · ΔE 20.8Turquoise · ΔE 22.2
Nearest named CSS colourMedium aquamarine (#66CDAA)ΔE 8.87, clearly different but related
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#BB5784
Analogous#57BB5C, #57B6BB
Triadic#8E57BB, #BB8E57
Split complementary#BB57B6, #BB5C57
Tetradic#5C57BB, #BB5784, #B6BB57

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#E8F6F0
Lighter +30%#C4E7D7
Lighter +20%#A0D8BF
Lighter +10%#7BCAA6
Darker −10%#409F74
Darker −20%#327A5A
Darker −30%#23563F
Darker −40%#143224
More saturated +25%#3AD891
Less saturated −25%#759D8B

Channel breakdown

R87
G187
B142
Red87 (34.1%)
Green187 (73.3%)
Blue142 (55.7%)
Hue153°
Saturation (HSL)42.37%
Lightness53.73%
Dominant channelGreen
Hex per channelR 57 · G BB · B 8E

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Every value on this page was computed from “57bb8e” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.