#577F59
Closest named color: Dark Sage (#598556). oklch(55.6% 0.073 145.7), rgb(87, 127, 89).
Aa
Black text reads best on this color (4.58:1).
About this color
#577F59 is a medium-dark, moderately saturated green. In OKLCH its lightness is 56%, its chroma 0.073 and its hue 146°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Sage (#598556), ΔE 0.020 away. Black text reads best on it, at 4.58:1.
| Hue family | Greens |
| Lightness | medium-dark (56%) |
| Chroma | moderately saturated (0.073) |
| Temperature | in between |
| Nearest name | Dark Sage (#598556) |
| Black text | 4.58:1 |
| White text | 4.57:1 |
Values
| HEX | #577F59 |
| RGB | rgb(87, 127, 89) |
| HSL | hsl(123, 19%, 42%) |
| OKLCH | oklch(55.6% 0.073 145.7) |
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 #577F59 | 4.57:1 | AA | Lc -77.2 | Fine for body text |
| Black text on #577F59 | 4.58:1 | AA | Lc 32.3 | Non-text elements, placeholder text |
| #577F59 text on white | 4.57:1 | AA | Lc 71.8 | Content text, not long reading |
| #577F59 text on black | 4.58:1 | AA | Lc -29.9 | Dividers and decoration only |
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
#F4F6F4
oklch(97.1% 0.003 145.5)
-
Step 100
100
#E6ECE6
oklch(93.7% 0.01 145.5)
-
Step 200
200
#D2DDD2
oklch(88.6% 0.019 145.4)
-
Step 300
300
#B4C7B4
oklch(81% 0.033 145.3)
-
Step 400
400
#8CAA8D
oklch(70.7% 0.053 145.9)
-
Step 500
500
#6F9571
oklch(63.1% 0.068 146)
-
Step 600
600 (this color)
#577F59
oklch(55.6% 0.073 145.7)
-
Step 700
700
#476B49
oklch(49.1% 0.068 145.8)
-
Step 800
800
#3B573C
oklch(42.6% 0.055 145.4)
-
Step 900
900
#324833
oklch(37.7% 0.045 145.7)
-
Step 950
950
#1E2A1E
oklch(27% 0.027 144.8)
#577F59 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) | #807857 | 0.058 |
| Deuteranopia (no green cones) | #7A745B | 0.057 |
| Tritanopia (no blue cones) | #537D75 | 0.044 |
| Achromatopsia (no color) | #757575 | 0.074 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #577F59
#577F59
oklch(55.6% 0.073 145.7)
- #8A648B
#8A648B
oklch(55.6% 0.074 325.7)
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 #577F59, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Sage #598556 ΔE 0.020
- Military Green #667C3E ΔE 0.034
- Swamp #698339 ΔE 0.047
- Muddy Green #657432 ΔE 0.048
- Sea Green #2E8B57 ΔE 0.049
- Slate Green #658D6D ΔE 0.049
- Fern Green #548D44 ΔE 0.057
- Khaki Green #728639 ΔE 0.058
Use #577F59 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.