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Recognised as Colour

#428D58

  • #428D58
  • Green
  • Dark
  • Nearest: Sea green

#428D58 is a green with RGB values 66, 141, 88 and HSL 138°, 36%, 41%. It is a dark colour, so black text on it reaches 5.2:1 contrast (AA for normal text). The nearest named colour is Sea green.

Colour values

#428D58#428D58
HEX#428D58
RGBrgb(66, 141, 88)
RGB (0–1)0.2588, 0.5529, 0.3451
RGB percentages25.9%, 55.3%, 34.5%
HSLhsl(137.6, 36.2%, 40.6%)
HSV / HSBhsv(137.6, 53.2%, 55.3%)
CMYK53.2%, 0%, 37.6%, 44.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer4,361,560
CSS custom property--colour: #428D58;

Brightness & contrast

Relative luminance0.20913WCAG 2.x, 0 is black and 1 is white
Perceived brightness117.7 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 5.18:1
Contrast with white4.05:1WCAG normal text: Fail
Contrast with black5.18:1WCAG normal text: AA
Greyscale equivalent#797979
Inverted#BD72A7

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#8E8354no red cones; affects about 1% of men; ΔE 33.2 from the original
Deuteranopia#837B5Bno green cones; the most common form, about 1% of men; ΔE 33.6 from the original
Tritanopia#318B80no blue cones; rare, and affects men and women equally; ΔE 24.2 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text4.05:1WCAG large text: AA
Contrast with black, large text5.18:1WCAG large text: AAA

Named colours

Sea green · ΔE 4.4Medium seagreen · ΔE 17.9Dark olivegreen · ΔE 22Dark seagreen · ΔE 22.8Medium aquamarine · ΔE 26.4Dark green · ΔE 27.5
Nearest named CSS colourSea green (#2E8B57)ΔE 4.43, a close match
Hue familygreen
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#8D4277
Analogous#528D42, #428D7D
Triadic#58428D, #8D5842
Split complementary#7D428D, #8D4252
Tetradic#42528D, #8D4277, #8D7D42

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#BCDFC6
Lighter +30%#99CFA9
Lighter +20%#76BF8B
Lighter +10%#53AF6E
Darker −10%#326A42
Darker −20%#21482D
Darker −30%#112517
Darker −40%#010201
More saturated +25%#28A74D
Less saturated −25%#5C7363

Channel breakdown

R66
G141
B88
Red66 (25.9%)
Green141 (55.3%)
Blue88 (34.5%)
Hue137.6°
Saturation (HSL)36.23%
Lightness40.59%
Dominant channelGreen
Hex per channelR 42 · G 8D · B 58

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Every value on this page was computed from “428d58” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.