#428E56
Closest named color: Light Forest Green (#4F9153). oklch(58.3% 0.114 150.1), rgb(66, 142, 86).
Aa
Black text reads best on this color (5.23:1).
About this color
#428E56 is a medium-dark, moderately saturated green. In OKLCH its lightness is 58%, its chroma 0.114 and its hue 150°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Light Forest Green (#4F9153), ΔE 0.016 away. Black text reads best on it, at 5.23:1.
| Hue family | Greens |
| Lightness | medium-dark (58%) |
| Chroma | moderately saturated (0.114) |
| Temperature | in between |
| Nearest name | Light Forest Green (#4F9153) |
| Black text | 5.23:1 |
| White text | 4.01:1 |
Values
| HEX | #428E56 |
| RGB | rgb(66, 142, 86) |
| HSL | hsl(136, 37%, 41%) |
| OKLCH | oklch(58.3% 0.114 150.1) |
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 #428E56 | 4.01:1 | AA large text | Lc -72.7 | Content text, not long reading |
| Black text on #428E56 | 5.23:1 | AA | Lc 36.9 | Non-text elements, placeholder text |
| #428E56 text on white | 4.01:1 | AA large text | Lc 67.2 | Content text, not long reading |
| #428E56 text on black | 5.23:1 | AA | Lc -34.5 | 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
#F2F7F3
oklch(97.1% 0.007 151.9)
-
Step 100
100
#E3EDE5
oklch(93.6% 0.015 151.8)
-
Step 200
200
#CCDFCF
oklch(88.5% 0.03 150.1)
-
Step 300
300
#AACAAF
oklch(80.8% 0.051 149.6)
-
Step 400
400
#7BAF86
oklch(70.6% 0.081 150.5)
-
Step 500
500
#579B67
oklch(63% 0.105 150.1)
-
Step 600
600 (this color)
#428E56
oklch(58.3% 0.114 150.1)
-
Step 700
700
#2B713F
oklch(49.1% 0.106 150.1)
-
Step 800
800
#255C34
oklch(42.6% 0.088 150.1)
-
Step 900
900
#244C2E
oklch(37.8% 0.068 150.2)
-
Step 950
950
#162C1B
oklch(26.9% 0.042 150.1)
#428E56 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) | #8F8352 | 0.096 |
| Deuteranopia (no green cones) | #847C5A | 0.094 |
| Tritanopia (no blue cones) | #318C80 | 0.063 |
| Achromatopsia (no color) | #7F7F7F | 0.115 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #428E56
#428E56
oklch(58.3% 0.114 150.1)
- #A1619B
#A1619B
oklch(58.4% 0.114 330.3)
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 #428E56, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Forest Green #4F9153 ΔE 0.016
- Sea Green #2E8B57 ΔE 0.018
- Fern Green #548D44 ΔE 0.024
- Viridian #1E9167 ΔE 0.026
- Dark Sage #598556 ΔE 0.033
- Moss Green #658B38 ΔE 0.042
- Ocean Green #3D9973 ΔE 0.043
- Swamp #698339 ΔE 0.048
Use #428E56 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.