#428840
Closest named color: Fern Green (#548D44). oklch(56.4% 0.127 143.1), rgb(66, 136, 64).
Aa
Black text reads best on this color (4.82:1).
About this color
#428840 is a medium-dark, moderately saturated green. In OKLCH its lightness is 56%, its chroma 0.127 and its hue 143°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Fern Green (#548D44), ΔE 0.025 away. Black text reads best on it, at 4.82:1.
| Hue family | Greens |
| Lightness | medium-dark (56%) |
| Chroma | moderately saturated (0.127) |
| Temperature | in between |
| Nearest name | Fern Green (#548D44) |
| Black text | 4.82:1 |
| White text | 4.35:1 |
Values
| HEX | #428840 |
| RGB | rgb(66, 136, 64) |
| HSL | hsl(118, 36%, 39%) |
| OKLCH | oklch(56.4% 0.127 143.1) |
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 #428840 | 4.35:1 | AA large text | Lc -75.4 | Fine for body text |
| Black text on #428840 | 4.82:1 | AA | Lc 34.2 | Non-text elements, placeholder text |
| #428840 text on white | 4.35:1 | AA large text | Lc 69.9 | Content text, not long reading |
| #428840 text on black | 4.82:1 | AA | Lc -31.8 | 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
#E4EDE3
oklch(93.7% 0.016 142.6)
-
Step 200
200
#CDDFCC
oklch(88.5% 0.032 143.8)
-
Step 300
300
#ABCBA9
oklch(80.9% 0.058 143.5)
-
Step 400
400
#7EB07B
oklch(70.8% 0.093 143.2)
-
Step 500
500
#5C9B59
oklch(63% 0.116 143.1)
-
Step 600
600 (this color)
#428840
oklch(56.4% 0.127 143.1)
-
Step 700
700
#317130
oklch(49.1% 0.118 143.3)
-
Step 800
800
#2A5C28
oklch(42.6% 0.098 142.9)
-
Step 900
900
#274C25
oklch(37.8% 0.077 142.8)
-
Step 950
950
#172C16
oklch(26.8% 0.048 143.1)
#428840 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) | #8B7D3A | 0.094 |
| Deuteranopia (no green cones) | #817745 | 0.092 |
| Tritanopia (no blue cones) | #398477 | 0.081 |
| Achromatopsia (no color) | #797979 | 0.128 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #428840
#428840
oklch(56.4% 0.127 143.1)
- #9959A0
#9959A0
oklch(56.3% 0.128 323.5)
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 #428840, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Fern Green #548D44 ΔE 0.025
- Sea Green #2E8B57 ΔE 0.027
- Light Forest Green #4F9153 ΔE 0.036
- Moss Green #658B38 ΔE 0.039
- Jungle Green #048243 ΔE 0.039
- Mossy Green #638B27 ΔE 0.041
- Sap Green #5C8B15 ΔE 0.042
- Forest Green #228B22 ΔE 0.042
Use #428840 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.