#577F5C
Closest named color: Dark Sage (#598556). oklch(55.7% 0.07 147.7), rgb(87, 127, 92).
Aa
Black text reads best on this color (4.59:1).
About this color
#577F5C is a medium-dark, muted green. In OKLCH its lightness is 56%, its chroma 0.070 and its hue 148°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Sage (#598556), ΔE 0.023 away. Black text reads best on it, at 4.59:1.
| Hue family | Greens |
| Lightness | medium-dark (56%) |
| Chroma | muted (0.070) |
| Temperature | in between |
| Nearest name | Dark Sage (#598556) |
| Black text | 4.59:1 |
| White text | 4.56:1 |
Values
| HEX | #577F5C |
| RGB | rgb(87, 127, 92) |
| HSL | hsl(128, 19%, 42%) |
| OKLCH | oklch(55.7% 0.07 147.7) |
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 #577F5C | 4.56:1 | AA | Lc -77.1 | Fine for body text |
| Black text on #577F5C | 4.59:1 | AA | Lc 32.4 | Non-text elements, placeholder text |
| #577F5C text on white | 4.56:1 | AA | Lc 71.7 | Content text, not long reading |
| #577F5C text on black | 4.59:1 | AA | Lc -30.0 | 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
#D2DCD3
oklch(88.4% 0.016 148.4)
-
Step 300
300
#B4C7B5
oklch(81% 0.032 146.7)
-
Step 400
400
#8CAA8F
oklch(70.8% 0.051 147.8)
-
Step 500
500
#6F9573
oklch(63.2% 0.066 147.5)
-
Step 600
600 (this color)
#577F5C
oklch(55.7% 0.07 147.7)
-
Step 700
700
#476B4B
oklch(49.1% 0.065 147.3)
-
Step 800
800
#3A573E
oklch(42.6% 0.054 148.1)
-
Step 900
900
#324835
oklch(37.7% 0.042 148.3)
-
Step 950
950
#1E2A1F
oklch(27% 0.026 147)
#577F5C 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) | #80785A | 0.058 |
| Deuteranopia (no green cones) | #7A745E | 0.057 |
| Tritanopia (no blue cones) | #527D76 | 0.041 |
| Achromatopsia (no color) | #767676 | 0.071 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #577F5C
#577F5C
oklch(55.7% 0.07 147.7)
- #8A6589
#8A6589
oklch(55.7% 0.07 327.4)
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 #577F5C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Sage #598556 ΔE 0.023
- Military Green #667C3E ΔE 0.038
- Slate Green #658D6D ΔE 0.048
- Swamp #698339 ΔE 0.051
- Muddy Green #657432 ΔE 0.051
- Sea Green #2E8B57 ΔE 0.051
- Light Forest Green #4F9153 ΔE 0.060
- Dark Moss Green #606C38 ΔE 0.060
Use #577F5C 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.