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Recognised as Colour

#399D4B

  • #399D4B
  • Green
  • Dark
  • Nearest: Medium seagreen

#399D4B is a green with RGB values 57, 157, 75 and HSL 131°, 47%, 42%. It is a dark colour, so black text on it reaches 6.1:1 contrast (AA for normal text). The nearest named colour is Medium seagreen.

Colour values

#399D4B#399D4B
HEX#399D4B
RGBrgb(57, 157, 75)
RGB (0–1)0.2235, 0.6157, 0.2941
RGB percentages22.4%, 61.6%, 29.4%
HSLhsl(130.8, 46.7%, 42%)
HSV / HSBhsv(130.8, 63.7%, 61.6%)
CMYK63.7%, 0%, 52.2%, 38.4%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,775,819
CSS custom property--colour: #399D4B;

Brightness & contrast

Relative luminance0.25492WCAG 2.x, 0 is black and 1 is white
Perceived brightness126.8 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 6.1:1
Contrast with white3.44:1WCAG normal text: Fail
Contrast with black6.1:1WCAG normal text: AA
Greyscale equivalent#828282
Inverted#C662B4

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#9F8F44no red cones; affects about 1% of men; ΔE 43.6 from the original
Deuteranopia#928751no green cones; the most common form, about 1% of men; ΔE 43.1 from the original
Tritanopia#1E9A8Ano blue cones; rare, and affects men and women equally; ΔE 36.8 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text3.44:1WCAG large text: AA
Contrast with black, large text6.1:1WCAG large text: AAA

Named colours

Medium seagreen · ΔE 12.7Forest green · ΔE 13.1Sea green · ΔE 17Green · ΔE 19.9Dark green · ΔE 22.9Olivedrab · ΔE 24.3
Nearest named CSS colourMedium seagreen (#3CB371)ΔE 12.71, a distinctly different colour
Hue familygreen
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#9D398B
Analogous#599D39, #399D7D
Triadic#4B399D, #9D4B39
Split complementary#7D399D, #9D3959
Tetradic#39599D, #9D398B, #9D7D39

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#BCE6C3
Lighter +30%#96D9A2
Lighter +20%#71CB81
Lighter +10%#4BBE60
Darker −10%#2B7839
Darker −20%#1E5227
Darker −30%#102D15
Darker −40%#030704
More saturated +25%#1EB83A
Less saturated −25%#54825C

Channel breakdown

R57
G157
B75
Red57 (22.4%)
Green157 (61.6%)
Blue75 (29.4%)
Hue130.8°
Saturation (HSL)46.73%
Lightness41.96%
Dominant channelGreen
Hex per channelR 39 · G 9D · B 4B

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Every value on this page was computed from “399d4b” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.