#578640
Closest named color: Fern Green (#548D44). oklch(56.9% 0.113 136.3), rgb(87, 134, 64).
Aa
Black text reads best on this color (4.88:1).
About this color
#578640 is a medium-dark, moderately saturated green. In OKLCH its lightness is 57%, its chroma 0.113 and its hue 136°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Fern Green (#548D44), ΔE 0.020 away. Black text reads best on it, at 4.88:1.
| Hue family | Greens |
| Lightness | medium-dark (57%) |
| Chroma | moderately saturated (0.113) |
| Temperature | in between |
| Nearest name | Fern Green (#548D44) |
| Black text | 4.88:1 |
| White text | 4.29:1 |
Values
| HEX | #578640 |
| RGB | rgb(87, 134, 64) |
| HSL | hsl(100, 35%, 39%) |
| OKLCH | oklch(56.9% 0.113 136.3) |
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 #578640 | 4.29:1 | AA large text | Lc -75.1 | Fine for body text |
| Black text on #578640 | 4.88:1 | AA | Lc 34.5 | Non-text elements, placeholder text |
| #578640 text on white | 4.29:1 | AA large text | Lc 69.6 | Content text, not long reading |
| #578640 text on black | 4.88:1 | AA | Lc -32.1 | 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
#F3F6F2
oklch(97% 0.006 137.8)
-
Step 100
100
#E5ECE3
oklch(93.5% 0.014 138.7)
-
Step 200
200
#D1DECC
oklch(88.6% 0.028 136.9)
-
Step 300
300
#B2C9A8
oklch(81% 0.052 136.2)
-
Step 400
400
#8AAD7A
oklch(70.8% 0.082 136.1)
-
Step 500
500
#6C9857
oklch(63.1% 0.104 136.1)
-
Step 600
600 (this color)
#578640
oklch(56.9% 0.113 136.3)
-
Step 700
700
#436E2E
oklch(49.1% 0.105 136.5)
-
Step 800
800
#385A27
oklch(42.8% 0.087 136.3)
-
Step 900
900
#304A24
oklch(37.8% 0.069 136.5)
-
Step 950
950
#1D2B16
oklch(27% 0.042 135.8)
#578640 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) | #8A7D3A | 0.071 |
| Deuteranopia (no green cones) | #837845 | 0.072 |
| Tritanopia (no blue cones) | #568276 | 0.079 |
| Achromatopsia (no color) | #7A7A7A | 0.113 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #578640
#578640
oklch(56.9% 0.113 136.3)
- #9161A3
#9161A3
oklch(56.9% 0.112 316.4)
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 #578640, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Fern Green #548D44 ΔE 0.020
- Swamp #698339 ΔE 0.022
- Moss Green #658B38 ΔE 0.025
- Dark Sage #598556 ΔE 0.029
- Mossy Green #638B27 ΔE 0.033
- Light Forest Green #4F9153 ΔE 0.033
- Military Green #667C3E ΔE 0.033
- Khaki Green #728639 ΔE 0.033
Use #578640 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.