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Recognised as Colour

#57BD8E

  • #57BD8E
  • Cyan
  • Dark
  • Nearest: Medium aquamarine

#57BD8E is a cyan with RGB values 87, 189, 142 and HSL 152°, 44%, 54%. It is a dark colour, so black text on it reaches 9.1:1 contrast (AAA for normal text). The nearest named colour is Medium aquamarine.

Colour values

#57BD8E#57BD8E
HEX#57BD8E
RGBrgb(87, 189, 142)
RGB (0–1)0.3412, 0.7412, 0.5569
RGB percentages34.1%, 74.1%, 55.7%
HSLhsl(152.4, 43.6%, 54.1%)
HSV / HSBhsv(152.4, 54%, 74.1%)
CMYK54%, 0%, 24.9%, 25.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer5,750,158
CSS custom property--colour: #57BD8E;

Brightness & contrast

Relative luminance0.40374WCAG 2.x, 0 is black and 1 is white
Perceived brightness159.8 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 9.07:1
Contrast with white2.31:1WCAG normal text: Fail
Contrast with black9.07:1WCAG normal text: AAA
Greyscale equivalent#A4A4A4
Inverted#A84271

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#BBB18Bno red cones; affects about 1% of men; ΔE 38.8 from the original
Deuteranopia#ACA691no green cones; the most common form, about 1% of men; ΔE 39.5 from the original
Tritanopia#32BDB0no blue cones; rare, and affects men and women equally; ΔE 18.9 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text2.31:1WCAG large text: Fail
Contrast with black, large text9.07:1WCAG large text: AAA

Named colours

Medium aquamarine · ΔE 9.2Medium seagreen · ΔE 12.8Dark seagreen · ΔE 17.5Sea green · ΔE 18.9Light seagreen · ΔE 21.9Turquoise · ΔE 22.4
Nearest named CSS colourMedium aquamarine (#66CDAA)ΔE 9.23, clearly different but related
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#BD5786
Analogous#57BD5B, #57B9BD
Triadic#8E57BD, #BD8E57
Split complementary#BD57B9, #BD5B57
Tetradic#5B57BD, #BD5786, #B9BD57

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#E9F7F1
Lighter +30%#C5E8D8
Lighter +20%#A0DABF
Lighter +10%#7CCBA7
Darker −10%#3FA274
Darker −20%#317D5A
Darker −30%#235840
Darker −40%#143425
More saturated +25%#3ADA90
Less saturated −25%#74A08C

Channel breakdown

R87
G189
B142
Red87 (34.1%)
Green189 (74.1%)
Blue142 (55.7%)
Hue152.35°
Saturation (HSL)43.59%
Lightness54.12%
Dominant channelGreen
Hex per channelR 57 · G BD · B 8E

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Every value on this page was computed from “57bd8e” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.