#428243
Closest named color: Sea Green (#2E8B57). oklch(54.8% 0.115 144.1), rgb(66, 130, 67).
Aa
White text reads best on this color (4.66:1).
About this color
#428243 is a medium-dark, moderately saturated green. In OKLCH its lightness is 55%, its chroma 0.115 and its hue 144°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Sea Green (#2E8B57), ΔE 0.030 away. White text reads best on it, at 4.66:1.
| Hue family | Greens |
| Lightness | medium-dark (55%) |
| Chroma | moderately saturated (0.115) |
| Temperature | in between |
| Nearest name | Sea Green (#2E8B57) |
| Black text | 4.50:1 |
| White text | 4.66:1 |
Values
| HEX | #428243 |
| RGB | rgb(66, 130, 67) |
| HSL | hsl(121, 33%, 38%) |
| OKLCH | oklch(54.8% 0.115 144.1) |
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 #428243 | 4.66:1 | AA | Lc -77.6 | Fine for body text |
| Black text on #428243 | 4.50:1 | AA | Lc 31.9 | Non-text elements, placeholder text |
| #428243 text on white | 4.66:1 | AA | Lc 72.2 | Content text, not long reading |
| #428243 text on black | 4.50:1 | AA | Lc -29.5 | Dividers and decoration only |
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
#E4EDE4
oklch(93.7% 0.015 145.5)
-
Step 200
200
#CEDECD
oklch(88.4% 0.029 143.7)
-
Step 300
300
#ADCAAC
oklch(80.9% 0.052 144.2)
-
Step 400
400
#81AF80
oklch(70.8% 0.084 144.1)
-
Step 500
500
#609A5F
oklch(63.1% 0.106 143.8)
-
Step 600
600 (this color)
#428243
oklch(54.8% 0.115 144.1)
-
Step 700
700
#367037
oklch(49.1% 0.107 144.1)
-
Step 800
800
#2D5B2E
oklch(42.6% 0.088 144.3)
-
Step 900
900
#294B29
oklch(37.7% 0.069 144)
-
Step 950
950
#182C18
oklch(27% 0.045 144.2)
#428243 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) | #84783E | 0.086 |
| Deuteranopia (no green cones) | #7B7247 | 0.085 |
| Tritanopia (no blue cones) | #397F73 | 0.071 |
| Achromatopsia (no color) | #747474 | 0.116 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #428243
#428243
oklch(54.8% 0.115 144.1)
- #925897
#925897
oklch(54.9% 0.116 324.1)
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 #428243, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sea Green #2E8B57 ΔE 0.030
- Jungle Green #048243 ΔE 0.033
- Dark Sage #598556 ΔE 0.038
- Fern Green #548D44 ΔE 0.040
- Military Green #667C3E ΔE 0.042
- Swamp #698339 ΔE 0.044
- Tree Green #2A7E19 ΔE 0.048
- Light Forest Green #4F9153 ΔE 0.049
Use #428243 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.