#577B5A
Closest named color: Dark Sage (#598556). oklch(54.6% 0.065 146.7), rgb(87, 123, 90).
Aa
White text reads best on this color (4.78:1).
About this color
#577B5A is a medium-dark, muted green. In OKLCH its lightness is 55%, its chroma 0.065 and its hue 147°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Sage (#598556), ΔE 0.033 away. White text reads best on it, at 4.78:1.
| Hue family | Greens |
| Lightness | medium-dark (55%) |
| Chroma | muted (0.065) |
| Temperature | in between |
| Nearest name | Dark Sage (#598556) |
| Black text | 4.38:1 |
| White text | 4.78:1 |
Values
| HEX | #577B5A |
| RGB | rgb(87, 123, 90) |
| HSL | hsl(125, 17%, 41%) |
| OKLCH | oklch(54.6% 0.065 146.7) |
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 #577B5A | 4.78:1 | AA | Lc -78.6 | Fine for body text |
| Black text on #577B5A | 4.38:1 | AA large text | Lc 30.9 | Non-text elements, placeholder text |
| #577B5A text on white | 4.78:1 | AA | Lc 73.2 | Content text, not long reading |
| #577B5A text on black | 4.38:1 | AA large text | Lc -28.5 | 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
#E6EBE7
oklch(93.5% 0.008 151.9)
-
Step 200
200
#D2DCD3
oklch(88.4% 0.016 148.4)
-
Step 300
300
#B5C6B6
oklch(80.9% 0.029 147)
-
Step 400
400
#8EA990
oklch(70.7% 0.047 147.1)
-
Step 500
500
#729474
oklch(63.2% 0.061 146.3)
-
Step 600
600 (this color)
#577B5A
oklch(54.6% 0.065 146.7)
-
Step 700
700
#4A6A4C
oklch(49.1% 0.06 146.1)
-
Step 800
800
#3D573F
oklch(42.8% 0.05 146.6)
-
Step 900
900
#344735
oklch(37.6% 0.039 146.1)
-
Step 950
950
#1F2A1F
oklch(27.1% 0.025 144.8)
#577B5A 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) | #7C7558 | 0.052 |
| Deuteranopia (no green cones) | #76715C | 0.051 |
| Tritanopia (no blue cones) | #537972 | 0.039 |
| Achromatopsia (no color) | #727272 | 0.065 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #577B5A
#577B5A
oklch(54.6% 0.065 146.7)
- #856385
#856385
oklch(54.6% 0.066 326.4)
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 #577B5A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Sage #598556 ΔE 0.033
- Military Green #667C3E ΔE 0.039
- Muddy Green #657432 ΔE 0.047
- Dark Moss Green #606C38 ΔE 0.051
- Swamp #698339 ΔE 0.057
- Slate Green #658D6D ΔE 0.059
- Sea Green #2E8B57 ΔE 0.059
- Grey Brown #7F7053 ΔE 0.061
Use #577B5A 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.