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Recognised as Colour

#669C57

  • #669C57
  • Green
  • Dark
  • Nearest: Sea green

#669C57 is a green with RGB values 102, 156, 87 and HSL 107°, 28%, 48%. It is a dark colour, so black text on it reaches 6.5:1 contrast (AA for normal text). The nearest named colour is Sea green.

Colour values

#669C57#669C57
HEX#669C57
RGBrgb(102, 156, 87)
RGB (0–1)0.4, 0.6118, 0.3412
RGB percentages40%, 61.2%, 34.1%
HSLhsl(107, 28.4%, 47.6%)
HSV / HSBhsv(107, 44.2%, 61.2%)
CMYK34.6%, 0%, 44.2%, 38.8%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer6,724,695
CSS custom property--colour: #669C57;

Brightness & contrast

Relative luminance0.2729WCAG 2.x, 0 is black and 1 is white
Perceived brightness135.1 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 6.46:1
Contrast with white3.25:1WCAG normal text: Fail
Contrast with black6.46:1WCAG normal text: AA
Greyscale equivalent#8C8C8C
Inverted#9963A8

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#A09252no red cones; affects about 1% of men; ΔE 28.2 from the original
Deuteranopia#988D5Bno green cones; the most common form, about 1% of men; ΔE 28.2 from the original
Tritanopia#63988Bno blue cones; rare, and affects men and women equally; ΔE 31.3 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text3.25:1WCAG large text: AA
Contrast with black, large text6.46:1WCAG large text: AAA

Named colours

Sea green · ΔE 15.4Medium seagreen · ΔE 18.8Dark seagreen · ΔE 19.5Olivedrab · ΔE 20Dark olivegreen · ΔE 21.2Forest green · ΔE 24.7
Nearest named CSS colourSea green (#2E8B57)ΔE 15.39, a distinctly different colour
Hue familygreen
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#8D579C
Analogous#899C57, #579C6B
Triadic#57669C, #9C5766
Split complementary#6B579C, #9C5788
Tetradic#57889C, #8D579C, #9C6B57

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#DAE8D7
Lighter +30%#BDD6B6
Lighter +20%#9FC495
Lighter +10%#82B274
Darker −10%#517B45
Darker −20%#3B5B32
Darker −30%#263A20
Darker −40%#10190E
More saturated +25%#55BA39
Less saturated −25%#777E75

Channel breakdown

R102
G156
B87
Red102 (40%)
Green156 (61.2%)
Blue87 (34.1%)
Hue106.96°
Saturation (HSL)28.4%
Lightness47.65%
Dominant channelGreen
Hex per channelR 66 · G 9C · B 57

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Every value on this page was computed from “669c57” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.