#578731
Closest named color: Mossy Green (#638B27). oklch(57% 0.128 133.6), rgb(87, 135, 49).
Aa
Black text reads best on this color (4.91:1).
About this color
#578731 is a medium-dark, moderately saturated green. In OKLCH its lightness is 57%, its chroma 0.128 and its hue 134°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Mossy Green (#638B27), ΔE 0.021 away. Black text reads best on it, at 4.91:1.
| Hue family | Greens |
| Lightness | medium-dark (57%) |
| Chroma | moderately saturated (0.128) |
| Temperature | in between |
| Nearest name | Mossy Green (#638B27) |
| Black text | 4.91:1 |
| White text | 4.27:1 |
Values
| HEX | #578731 |
| RGB | rgb(87, 135, 49) |
| HSL | hsl(93, 47%, 36%) |
| OKLCH | oklch(57% 0.128 133.6) |
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 #578731 | 4.27:1 | AA large text | Lc -74.9 | Content text, not long reading |
| Black text on #578731 | 4.91:1 | AA | Lc 34.7 | Non-text elements, placeholder text |
| #578731 text on white | 4.27:1 | AA large text | Lc 69.4 | Content text, not long reading |
| #578731 text on black | 4.91:1 | AA | Lc -32.3 | 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
#F3F7F1
oklch(97.1% 0.009 134.9)
-
Step 100
100
#E5ECE1
oklch(93.5% 0.016 133.8)
-
Step 200
200
#D1DEC9
oklch(88.5% 0.032 133.3)
-
Step 300
300
#B2C9A4
oklch(80.9% 0.057 133.7)
-
Step 400
400
#89AD72
oklch(70.6% 0.091 133.8)
-
Step 500
500
#6C994B
oklch(63.2% 0.119 133.5)
-
Step 600
600 (this color)
#578731
oklch(57% 0.128 133.6)
-
Step 700
700
#436F1F
oklch(49.2% 0.12 133.9)
-
Step 800
800
#385A1C
oklch(42.7% 0.098 133.5)
-
Step 900
900
#304A1D
oklch(37.6% 0.077 133.8)
-
Step 950
950
#1C2C12
oklch(27.1% 0.05 134.6)
#578731 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) | #8C7D27 | 0.075 |
| Deuteranopia (no green cones) | #867938 | 0.077 |
| Tritanopia (no blue cones) | #578275 | 0.095 |
| Achromatopsia (no color) | #7A7A7A | 0.129 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #578731
#578731
oklch(57% 0.128 133.6)
- #925EAC
#925EAC
oklch(57% 0.128 313.6)
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 #578731, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mossy Green #638B27 ΔE 0.021
- Fern Green #548D44 ΔE 0.022
- Moss Green #658B38 ΔE 0.023
- Sap Green #5C8B15 ΔE 0.025
- Swamp #698339 ΔE 0.028
- Olive Drab #6B8E23 ΔE 0.035
- Khaki Green #728639 ΔE 0.037
- Swamp Green #748500 ΔE 0.038
Use #578731 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.