#428647
Closest named color: Sea Green (#2E8B57). oklch(55.9% 0.117 145.3), rgb(66, 134, 71).
Aa
Black text reads best on this color (4.73:1).
About this color
#428647 is a medium-dark, moderately saturated green. In OKLCH its lightness is 56%, its chroma 0.117 and its hue 145°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Sea Green (#2E8B57), ΔE 0.022 away. Black text reads best on it, at 4.73:1.
| Hue family | Greens |
| Lightness | medium-dark (56%) |
| Chroma | moderately saturated (0.117) |
| Temperature | in between |
| Nearest name | Sea Green (#2E8B57) |
| Black text | 4.73:1 |
| White text | 4.43:1 |
Values
| HEX | #428647 |
| RGB | rgb(66, 134, 71) |
| HSL | hsl(124, 34%, 39%) |
| OKLCH | oklch(55.9% 0.117 145.3) |
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 #428647 | 4.43:1 | AA large text | Lc -76.1 | Fine for body text |
| Black text on #428647 | 4.73:1 | AA | Lc 33.5 | Non-text elements, placeholder text |
| #428647 text on white | 4.43:1 | AA large text | Lc 70.6 | Content text, not long reading |
| #428647 text on black | 4.73:1 | AA | Lc -31.1 | 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
#F3F7F3
oklch(97.2% 0.007 145.5)
-
Step 100
100
#E4EDE4
oklch(93.7% 0.015 145.5)
-
Step 200
200
#CEDFCE
oklch(88.6% 0.029 145.3)
-
Step 300
300
#ACCAAC
oklch(80.9% 0.053 145.1)
-
Step 400
400
#7FAF80
oklch(70.7% 0.085 145.1)
-
Step 500
500
#5D9B60
oklch(63.2% 0.108 145.2)
-
Step 600
600 (this color)
#428647
oklch(55.9% 0.117 145.3)
-
Step 700
700
#327137
oklch(49.2% 0.111 145.2)
-
Step 800
800
#2B5C2E
oklch(42.8% 0.091 145)
-
Step 900
900
#274B29
oklch(37.6% 0.071 145.2)
-
Step 950
950
#182C19
oklch(27% 0.043 145.4)
#428647 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) | #887C42 | 0.090 |
| Deuteranopia (no green cones) | #7F754B | 0.090 |
| Tritanopia (no blue cones) | #378377 | 0.071 |
| Achromatopsia (no color) | #787878 | 0.118 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #428647
#428647
oklch(55.9% 0.117 145.3)
- #975A9A
#975A9A
oklch(56% 0.118 325.3)
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 #428647, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sea Green #2E8B57 ΔE 0.022
- Fern Green #548D44 ΔE 0.030
- Dark Sage #598556 ΔE 0.034
- Jungle Green #048243 ΔE 0.037
- Light Forest Green #4F9153 ΔE 0.037
- Swamp #698339 ΔE 0.042
- Moss Green #658B38 ΔE 0.044
- Viridian #1E9167 ΔE 0.044
Use #428647 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.