#428645
Closest named color: Sea Green (#2E8B57). oklch(55.9% 0.119 144.6), rgb(66, 134, 69).
Aa
Black text reads best on this color (4.72:1).
About this color
#428645 is a medium-dark, moderately saturated green. In OKLCH its lightness is 56%, its chroma 0.119 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 0.023 away. Black text reads best on it, at 4.72:1.
| Hue family | Greens |
| Lightness | medium-dark (56%) |
| Chroma | moderately saturated (0.119) |
| Temperature | in between |
| Nearest name | Sea Green (#2E8B57) |
| Black text | 4.72:1 |
| White text | 4.44:1 |
Values
| HEX | #428645 |
| RGB | rgb(66, 134, 69) |
| HSL | hsl(123, 34%, 39%) |
| OKLCH | oklch(55.9% 0.119 144.6) |
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 #428645 | 4.44:1 | AA large text | Lc -76.1 | Fine for body text |
| Black text on #428645 | 4.72:1 | AA | Lc 33.5 | Non-text elements, placeholder text |
| #428645 text on white | 4.44:1 | AA large text | Lc 70.6 | Content text, not long reading |
| #428645 text on black | 4.72:1 | 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
#F3F7F2
oklch(97.2% 0.008 139.4)
-
Step 100
100
#E4EDE4
oklch(93.7% 0.015 145.5)
-
Step 200
200
#CEDFCD
oklch(88.6% 0.03 143.8)
-
Step 300
300
#ACCAAB
oklch(80.8% 0.054 144.2)
-
Step 400
400
#7FAF7F
oklch(70.7% 0.086 144.6)
-
Step 500
500
#5D9B5E
oklch(63.1% 0.11 144.5)
-
Step 600
600 (this color)
#428645
oklch(55.9% 0.119 144.6)
-
Step 700
700
#327136
oklch(49.2% 0.112 144.8)
-
Step 800
800
#2B5C2D
oklch(42.8% 0.092 144.5)
-
Step 900
900
#274B28
oklch(37.6% 0.072 144.6)
-
Step 950
950
#182C18
oklch(27% 0.045 144.2)
#428645 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) | #887B40 | 0.091 |
| Deuteranopia (no green cones) | #7F7549 | 0.090 |
| Tritanopia (no blue cones) | #388377 | 0.074 |
| Achromatopsia (no color) | #787878 | 0.120 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #428645
#428645
oklch(55.9% 0.119 144.6)
- #965A9B
#965A9B
oklch(55.9% 0.119 324.2)
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 #428645, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sea Green #2E8B57 ΔE 0.023
- Fern Green #548D44 ΔE 0.030
- Dark Sage #598556 ΔE 0.036
- Jungle Green #048243 ΔE 0.037
- Light Forest Green #4F9153 ΔE 0.038
- Swamp #698339 ΔE 0.042
- Moss Green #658B38 ΔE 0.043
- Military Green #667C3E ΔE 0.045
Use #428645 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.