#578366
Closest named color: Dark Sage (#598556). oklch(56.9% 0.066 154.9), rgb(87, 131, 102).
Aa
Black text reads best on this color (4.84:1).
About this color
#578366 is a medium-dark, muted green. In OKLCH its lightness is 57%, its chroma 0.066 and its hue 155°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Sage (#598556), ΔE 0.025 away. Black text reads best on it, at 4.84:1.
| Hue family | Greens |
| Lightness | medium-dark (57%) |
| Chroma | muted (0.066) |
| Temperature | in between |
| Nearest name | Dark Sage (#598556) |
| Black text | 4.84:1 |
| White text | 4.33:1 |
Values
| HEX | #578366 |
| RGB | rgb(87, 131, 102) |
| HSL | hsl(140, 20%, 43%) |
| OKLCH | oklch(56.9% 0.066 154.9) |
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 #578366 | 4.33:1 | AA large text | Lc -75.4 | Fine for body text |
| Black text on #578366 | 4.84:1 | AA | Lc 34.1 | Non-text elements, placeholder text |
| #578366 text on white | 4.33:1 | AA large text | Lc 70.0 | Content text, not long reading |
| #578366 text on black | 4.84:1 | AA | Lc -31.7 | 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
#F3F6F4
oklch(97% 0.004 157.2)
-
Step 100
100
#E6ECE7
oklch(93.7% 0.009 150.7)
-
Step 200
200
#D1DCD4
oklch(88.4% 0.016 154.4)
-
Step 300
300
#B2C7B8
oklch(80.9% 0.031 154.6)
-
Step 400
400
#8AAA94
oklch(70.8% 0.047 155)
-
Step 500
500
#6C9579
oklch(63.2% 0.062 154.5)
-
Step 600
600 (this color)
#578366
oklch(56.9% 0.066 154.9)
-
Step 700
700
#436B51
oklch(49% 0.062 155)
-
Step 800
800
#385743
oklch(42.6% 0.05 155.4)
-
Step 900
900
#304838
oklch(37.7% 0.04 154.8)
-
Step 950
950
#1D2A21
oklch(27% 0.024 154.3)
#578366 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) | #837C64 | 0.060 |
| Deuteranopia (no green cones) | #7C7768 | 0.059 |
| Tritanopia (no blue cones) | #4F827B | 0.033 |
| Achromatopsia (no color) | #797979 | 0.067 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #578366
#578366
oklch(56.9% 0.066 154.9)
- #906887
#906887
oklch(56.9% 0.067 334.7)
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 #578366, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Sage #598556 ΔE 0.025
- Slate Green #658D6D ΔE 0.036
- Dusty Teal #4C9085 ΔE 0.049
- Military Green #667C3E ΔE 0.049
- Sea Green #2E8B57 ΔE 0.053
- Viridian #1E9167 ΔE 0.055
- Light Forest Green #4F9153 ΔE 0.057
- Swamp #698339 ΔE 0.058
Use #578366 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.