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Recognised as Colour

#688B55

  • #688B55
  • Green
  • Dark
  • Nearest: Dark olivegreen

#688B55 is a green with RGB values 104, 139, 85 and HSL 99°, 24%, 44%. It is a dark colour, so black text on it reaches 5.4:1 contrast (AA for normal text). The nearest named colour is Dark olivegreen.

Colour values

#688B55#688B55
HEX#688B55
RGBrgb(104, 139, 85)
RGB (0–1)0.4078, 0.5451, 0.3333
RGB percentages40.8%, 54.5%, 33.3%
HSLhsl(98.9, 24.1%, 43.9%)
HSV / HSBhsv(98.9, 38.8%, 54.5%)
CMYK25.2%, 0%, 38.8%, 45.5%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer6,851,413
CSS custom property--colour: #688B55;

Brightness & contrast

Relative luminance0.22064WCAG 2.x, 0 is black and 1 is white
Perceived brightness124.1 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 5.41:1
Contrast with white3.88:1WCAG normal text: Fail
Contrast with black5.41:1WCAG normal text: AA
Greyscale equivalent#808080
Inverted#9774AA

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#8F8351no red cones; affects about 1% of men; ΔE 20.2 from the original
Deuteranopia#8A8058no green cones; the most common form, about 1% of men; ΔE 20.3 from the original
Tritanopia#68877Dno blue cones; rare, and affects men and women equally; ΔE 25.1 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text3.88:1WCAG large text: AA
Contrast with black, large text5.41:1WCAG large text: AAA

Named colours

Dark olivegreen · ΔE 13.7Sea green · ΔE 17.9Dark seagreen · ΔE 19.3Olivedrab · ΔE 25.3Dark khaki · ΔE 27.8Medium seagreen · ΔE 27.8
Nearest named CSS colourDark olivegreen (#556B2F)ΔE 13.68, a distinctly different colour
Hue familygreen
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#78558B
Analogous#838B55, #558B5D
Triadic#55688B, #8B5568
Split complementary#5D558B, #8B5583
Tetradic#55838B, #78558B, #8B5D55

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#D3E0CC
Lighter +30%#B8CDAC
Lighter +20%#9CB98D
Lighter +10%#81A66D
Darker −10%#506B42
Darker −20%#394C2E
Darker −30%#212C1B
Darker −40%#090C08
More saturated +25%#60A739
Less saturated −25%#707070

Channel breakdown

R104
G139
B85
Red104 (40.8%)
Green139 (54.5%)
Blue85 (33.3%)
Hue98.89°
Saturation (HSL)24.11%
Lightness43.92%
Dominant channelGreen
Hex per channelR 68 · G 8B · B 55

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Every value on this page was computed from “688b55” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.