#428458
Closest named color: Dark Sage (#598556). oklch(55.7% 0.097 152.9), rgb(66, 132, 88).
Aa
Black text reads best on this color (4.67:1).
About this color
#428458 is a medium-dark, moderately saturated green. In OKLCH its lightness is 56%, its chroma 0.097 and its hue 153°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Sage (#598556), ΔE 0.024 away. Black text reads best on it, at 4.67:1.
| Hue family | Greens |
| Lightness | medium-dark (56%) |
| Chroma | moderately saturated (0.097) |
| Temperature | in between |
| Nearest name | Dark Sage (#598556) |
| Black text | 4.67:1 |
| White text | 4.49:1 |
Values
| HEX | #428458 |
| RGB | rgb(66, 132, 88) |
| HSL | hsl(140, 33%, 39%) |
| OKLCH | oklch(55.7% 0.097 152.9) |
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 #428458 | 4.49:1 | AA large text | Lc -76.5 | Fine for body text |
| Black text on #428458 | 4.67:1 | AA | Lc 33.1 | Non-text elements, placeholder text |
| #428458 text on white | 4.49:1 | AA large text | Lc 71.0 | Content text, not long reading |
| #428458 text on black | 4.67:1 | AA | Lc -30.6 | 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
#F3F7F4
oklch(97.2% 0.006 153.8)
-
Step 100
100
#E4ECE6
oklch(93.5% 0.012 153.7)
-
Step 200
200
#CEDED2
oklch(88.5% 0.024 153.4)
-
Step 300
300
#ACC9B3
oklch(80.8% 0.044 152.6)
-
Step 400
400
#7FAE8C
oklch(70.8% 0.071 153)
-
Step 500
500
#5D9970
oklch(63% 0.088 153.4)
-
Step 600
600 (this color)
#428458
oklch(55.7% 0.097 152.9)
-
Step 700
700
#336F48
oklch(49% 0.089 153.2)
-
Step 800
800
#2B5B3B
oklch(42.8% 0.075 152.9)
-
Step 900
900
#284B33
oklch(37.9% 0.058 152.9)
-
Step 950
950
#182C1E
oklch(27.1% 0.037 152.9)
#428458 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) | #847B55 | 0.084 |
| Deuteranopia (no green cones) | #7B745B | 0.084 |
| Tritanopia (no blue cones) | #338278 | 0.050 |
| Achromatopsia (no color) | #777777 | 0.097 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #428458
#428458
oklch(55.7% 0.097 152.9)
- #955D8C
#955D8C
oklch(55.6% 0.097 332.8)
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 #428458, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Sage #598556 ΔE 0.024
- Sea Green #2E8B57 ΔE 0.025
- Viridian #1E9167 ΔE 0.039
- Military Green #667C3E ΔE 0.045
- Light Forest Green #4F9153 ΔE 0.045
- Fern Green #548D44 ΔE 0.046
- Jungle Green #048243 ΔE 0.048
- Swamp #698339 ΔE 0.051
Use #428458 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.