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Recognised as Colour

#66B575

  • #66B575
  • Green
  • Dark
  • Nearest: Medium seagreen

#66B575 is a green with RGB values 102, 181, 117 and HSL 131°, 35%, 55%. It is a dark colour, so black text on it reaches 8.4:1 contrast (AAA for normal text). The nearest named colour is Medium seagreen.

Colour values

#66B575#66B575
HEX#66B575
RGBrgb(102, 181, 117)
RGB (0–1)0.4, 0.7098, 0.4588
RGB percentages40%, 71%, 45.9%
HSLhsl(131.4, 34.8%, 55.5%)
HSV / HSBhsv(131.4, 43.6%, 71%)
CMYK43.6%, 0%, 35.4%, 29%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer6,731,125
CSS custom property--colour: #66B575;

Brightness & contrast

Relative luminance0.37157WCAG 2.x, 0 is black and 1 is white
Perceived brightness154.6 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 8.43:1
Contrast with white2.49:1WCAG normal text: Fail
Contrast with black8.43:1WCAG normal text: AAA
Greyscale equivalent#A0A0A0
Inverted#994A8A

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#B6A971no red cones; affects about 1% of men; ΔE 35 from the original
Deuteranopia#ABA179no green cones; the most common form, about 1% of men; ΔE 35.6 from the original
Tritanopia#59B2A5no blue cones; rare, and affects men and women equally; ΔE 28.1 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text2.49:1WCAG large text: Fail
Contrast with black, large text8.43:1WCAG large text: AAA

Named colours

Medium seagreen · ΔE 10.3Dark seagreen · ΔE 16.7Sea green · ΔE 16.8Medium aquamarine · ΔE 18.9Light green · ΔE 23.9Forest green · ΔE 28.3
Nearest named CSS colourMedium seagreen (#3CB371)ΔE 10.3, a distinctly different colour
Hue familygreen
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#B566A6
Analogous#7FB566, #66B59C
Triadic#7566B5, #B57566
Split complementary#9C66B5, #B5667F
Tetradic#667FB5, #B566A6, #B59C66

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#EFF8F1
Lighter +30%#CDE7D2
Lighter +20%#ABD6B3
Lighter +10%#88C694
Darker −10%#4C9C5B
Darker −20%#3B7A47
Darker −30%#2A5833
Darker −40%#1A351F
More saturated +25%#4AD163
Less saturated −25%#829987

Channel breakdown

R102
G181
B117
Red102 (40%)
Green181 (71%)
Blue117 (45.9%)
Hue131.39°
Saturation (HSL)34.8%
Lightness55.49%
Dominant channelGreen
Hex per channelR 66 · G B5 · B 75

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Every value on this page was computed from “66b575” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.