#428635
Closest named color: Fern Green (#548D44). oklch(55.7% 0.135 140.6), rgb(66, 134, 53).
Aa
Black text reads best on this color (4.69:1).
About this color
#428635 is a medium-dark, moderately saturated green. In OKLCH its lightness is 56%, its chroma 0.135 and its hue 141°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Fern Green (#548D44), ΔE 0.033 away. Black text reads best on it, at 4.69:1.
| Hue family | Greens |
| Lightness | medium-dark (56%) |
| Chroma | moderately saturated (0.135) |
| Temperature | in between |
| Nearest name | Fern Green (#548D44) |
| Black text | 4.69:1 |
| White text | 4.47:1 |
Values
| HEX | #428635 |
| RGB | rgb(66, 134, 53) |
| HSL | hsl(110, 43%, 37%) |
| OKLCH | oklch(55.7% 0.135 140.6) |
Contrast
WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #428635 | 4.47:1 | AA large text | Lc -76.3 | Fine for body text |
| Black text on #428635 | 4.69:1 | AA | Lc 33.3 | Non-text elements, placeholder text |
| #428635 text on white | 4.47:1 | AA large text | Lc 70.8 | Content text, not long reading |
| #428635 text on black | 4.69:1 | AA | Lc -30.9 | Non-text elements, placeholder text |
Tints and shades
A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 600.
-
Step 50
50
#F3F7F2
oklch(97.2% 0.008 139.4)
-
Step 100
100
#E4EDE2
oklch(93.6% 0.017 140)
-
Step 200
200
#CEDFCA
oklch(88.5% 0.034 139.7)
-
Step 300
300
#ACCBA6
oklch(80.9% 0.061 140.6)
-
Step 400
400
#7FB076
oklch(70.7% 0.097 140.7)
-
Step 500
500
#5D9C52
oklch(63.2% 0.124 140.8)
-
Step 600
600 (this color)
#428635
oklch(55.7% 0.135 140.6)
-
Step 700
700
#337127
oklch(49% 0.125 140.6)
-
Step 800
800
#2B5C22
oklch(42.6% 0.103 140.7)
-
Step 900
900
#284C21
oklch(37.8% 0.081 140.5)
-
Step 950
950
#182C14
oklch(26.9% 0.05 140.3)
#428635 with color blindness
Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #897B2D | 0.092 |
| Deuteranopia (no green cones) | #80753B | 0.092 |
| Tritanopia (no blue cones) | #3B8274 | 0.089 |
| Achromatopsia (no color) | #777777 | 0.135 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #428635
#428635
oklch(55.7% 0.135 140.6)
- #9656A3
#9656A3
oklch(55.7% 0.134 320.7)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #428635, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Fern Green #548D44 ΔE 0.033
- Forest Green #228B22 ΔE 0.035
- Dark Grass Green #388004 ΔE 0.036
- Sea Green #2E8B57 ΔE 0.037
- Jungle Green #048243 ΔE 0.038
- Sap Green #5C8B15 ΔE 0.038
- Tree Green #2A7E19 ΔE 0.040
- Mossy Green #638B27 ΔE 0.041
Use #428635 in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.