#428F56
Closest named color: Light Forest Green (#4F9153). oklch(58.6% 0.116 150), rgb(66, 143, 86).
Aa
Black text reads best on this color (5.29:1).
About this color
#428F56 is a medium-dark, moderately saturated green. In OKLCH its lightness is 59%, its chroma 0.116 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 0.014 away. Black text reads best on it, at 5.29:1.
| Hue family | Greens |
| Lightness | medium-dark (59%) |
| Chroma | moderately saturated (0.116) |
| Temperature | in between |
| Nearest name | Light Forest Green (#4F9153) |
| Black text | 5.29:1 |
| White text | 3.96:1 |
Values
| HEX | #428F56 |
| RGB | rgb(66, 143, 86) |
| HSL | hsl(136, 37%, 41%) |
| OKLCH | oklch(58.6% 0.116 150) |
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 #428F56 | 3.96:1 | AA large text | Lc -72.3 | Content text, not long reading |
| Black text on #428F56 | 5.29:1 | AA | Lc 37.3 | Non-text elements, placeholder text |
| #428F56 text on white | 3.96:1 | AA large text | Lc 66.8 | Content text, not long reading |
| #428F56 text on black | 5.29:1 | AA | Lc -34.9 | 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
#AACBAF
oklch(81% 0.053 149.4)
-
Step 400
400
#7BB085
oklch(70.8% 0.084 149.7)
-
Step 500
500
#569B66
oklch(63% 0.106 149.9)
-
Step 600
600 (this color)
#428F56
oklch(58.6% 0.116 150)
-
Step 700
700
#2A713E
oklch(49% 0.107 149.9)
-
Step 800
800
#245C34
oklch(42.6% 0.088 150.4)
-
Step 900
900
#234C2D
oklch(37.7% 0.07 149.9)
-
Step 950
950
#152C1B
oklch(26.8% 0.043 151)
#428F56 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) | #908452 | 0.097 |
| Deuteranopia (no green cones) | #857D5A | 0.094 |
| Tritanopia (no blue cones) | #318D81 | 0.064 |
| Achromatopsia (no color) | #808080 | 0.117 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #428F56
#428F56
oklch(58.6% 0.116 150)
- #A2619D
#A2619D
oklch(58.6% 0.116 329.7)
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 #428F56, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Forest Green #4F9153 ΔE 0.014
- Sea Green #2E8B57 ΔE 0.021
- Fern Green #548D44 ΔE 0.023
- Viridian #1E9167 ΔE 0.026
- Dark Sage #598556 ΔE 0.035
- Moss Green #658B38 ΔE 0.041
- Ocean Green #3D9973 ΔE 0.041
- Swamp #698339 ΔE 0.049
Use #428F56 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.