#428447
Closest named color: Sea Green (#2E8B57). oklch(55.4% 0.114 145.4), rgb(66, 132, 71).
Aa
Black text reads best on this color (4.62:1).
About this color
#428447 is a medium-dark, moderately saturated green. In OKLCH its lightness is 55%, its chroma 0.114 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 0.025 away. Black text reads best on it, at 4.62:1.
| Hue family | Greens |
| Lightness | medium-dark (55%) |
| Chroma | moderately saturated (0.114) |
| Temperature | in between |
| Nearest name | Sea Green (#2E8B57) |
| Black text | 4.62:1 |
| White text | 4.54:1 |
Values
| HEX | #428447 |
| RGB | rgb(66, 132, 71) |
| HSL | hsl(125, 33%, 39%) |
| OKLCH | oklch(55.4% 0.114 145.4) |
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 #428447 | 4.54:1 | AA | Lc -76.8 | Fine for body text |
| Black text on #428447 | 4.62:1 | AA | Lc 32.7 | Non-text elements, placeholder text |
| #428447 text on white | 4.54:1 | AA | Lc 71.3 | Content text, not long reading |
| #428447 text on black | 4.62:1 | AA | Lc -30.3 | 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
#CEDECE
oklch(88.4% 0.028 145.3)
-
Step 300
300
#ACCAAD
oklch(80.9% 0.052 146)
-
Step 400
400
#80AF81
oklch(70.8% 0.083 145.2)
-
Step 500
500
#5E9A61
oklch(63% 0.105 145.3)
-
Step 600
600 (this color)
#428447
oklch(55.4% 0.114 145.4)
-
Step 700
700
#347039
oklch(49.1% 0.106 145.4)
-
Step 800
800
#2C5B2F
oklch(42.6% 0.088 145.1)
-
Step 900
900
#284B2A
oklch(37.7% 0.069 145.3)
-
Step 950
950
#182C19
oklch(27% 0.043 145.4)
#428447 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) | #867A42 | 0.088 |
| Deuteranopia (no green cones) | #7D744B | 0.087 |
| Tritanopia (no blue cones) | #388175 | 0.069 |
| Achromatopsia (no color) | #767676 | 0.115 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #428447
#428447
oklch(55.4% 0.114 145.4)
- #945997
#945997
oklch(55.3% 0.115 325.3)
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 #428447, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sea Green #2E8B57 ΔE 0.025
- Dark Sage #598556 ΔE 0.034
- Jungle Green #048243 ΔE 0.035
- Fern Green #548D44 ΔE 0.035
- Military Green #667C3E ΔE 0.042
- Light Forest Green #4F9153 ΔE 0.043
- Swamp #698339 ΔE 0.043
- Viridian #1E9167 ΔE 0.047
Use #428447 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.