#428459
Closest named color: Dark Sage (#598556). oklch(55.8% 0.096 153.5), rgb(66, 132, 89).
Aa
Black text reads best on this color (4.67:1).
About this color
#428459 is a medium-dark, moderately saturated green. In OKLCH its lightness is 56%, its chroma 0.096 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 (0.096) |
| Temperature | in between |
| Nearest name | Dark Sage (#598556) |
| Black text | 4.67:1 |
| White text | 4.49:1 |
Values
| HEX | #428459 |
| RGB | rgb(66, 132, 89) |
| HSL | hsl(141, 33%, 39%) |
| OKLCH | oklch(55.8% 0.096 153.5) |
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 #428459 | 4.49:1 | AA large text | Lc -76.5 | Fine for body text |
| Black text on #428459 | 4.67:1 | AA | Lc 33.1 | Non-text elements, placeholder text |
| #428459 text on white | 4.49:1 | AA large text | Lc 71.0 | Content text, not long reading |
| #428459 text on black | 4.67:1 | AA | Lc -30.7 | 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
#ACC9B4
oklch(80.8% 0.043 153.9)
-
Step 400
400
#7FAE8D
oklch(70.8% 0.07 153.7)
-
Step 500
500
#5D9970
oklch(63% 0.088 153.4)
-
Step 600
600 (this color)
#428459
oklch(55.8% 0.096 153.5)
-
Step 700
700
#336F48
oklch(49% 0.089 153.2)
-
Step 800
800
#2B5B3C
oklch(42.8% 0.074 153.6)
-
Step 900
900
#284A33
oklch(37.6% 0.056 153.3)
-
Step 950
950
#182C1E
oklch(27.1% 0.037 152.9)
#428459 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) | #847B56 | 0.084 |
| Deuteranopia (no green cones) | #7A745C | 0.082 |
| Tritanopia (no blue cones) | #338379 | 0.049 |
| Achromatopsia (no color) | #777777 | 0.096 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #428459
#428459
oklch(55.8% 0.096 153.5)
- #955E8B
#955E8B
oklch(55.8% 0.095 333.6)
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 #428459, 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 0.026
- Viridian #1E9167 ΔE 0.039
- Military Green #667C3E ΔE 0.046
- Light Forest Green #4F9153 ΔE 0.046
- Fern Green #548D44 ΔE 0.047
- Jungle Green #048243 ΔE 0.049
- Swamp #698339 ΔE 0.051
Use #428459 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.