#577D6A
Closest named color: Dark Sage (#598556). oklch(55.5% 0.052 162.4), rgb(87, 125, 106).
Aa
White text reads best on this color (4.61:1).
About this color
#577D6A is a medium-dark, muted green. In OKLCH its lightness is 56%, its chroma 0.052 and its hue 162°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Sage (#598556), ΔE 0.044 away. White text reads best on it, at 4.61:1.
| Hue family | Greens |
| Lightness | medium-dark (56%) |
| Chroma | muted (0.052) |
| Temperature | in between |
| Nearest name | Dark Sage (#598556) |
| Black text | 4.54:1 |
| White text | 4.61:1 |
Values
| HEX | #577D6A |
| RGB | rgb(87, 125, 106) |
| HSL | hsl(150, 18%, 42%) |
| OKLCH | oklch(55.5% 0.052 162.4) |
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 #577D6A | 4.61:1 | AA | Lc -77.5 | Fine for body text |
| Black text on #577D6A | 4.54:1 | AA | Lc 32.0 | Non-text elements, placeholder text |
| #577D6A text on white | 4.61:1 | AA | Lc 72.0 | Content text, not long reading |
| #577D6A text on black | 4.54:1 | AA | Lc -29.6 | 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
#F4F6F5
oklch(97.1% 0.002 165.1)
-
Step 100
100
#E6EBE8
oklch(93.5% 0.007 160.1)
-
Step 200
200
#D2DCD6
oklch(88.5% 0.013 159.9)
-
Step 300
300
#B4C6BC
oklch(81% 0.024 161.6)
-
Step 400
400
#8CA89A
oklch(70.6% 0.037 163.7)
-
Step 500
500
#709381
oklch(63.2% 0.047 162.3)
-
Step 600
600 (this color)
#577D6A
oklch(55.5% 0.052 162.4)
-
Step 700
700
#476A58
oklch(49.2% 0.05 161.4)
-
Step 800
800
#3B5648
oklch(42.7% 0.04 161.5)
-
Step 900
900
#33473D
oklch(37.8% 0.03 162.8)
-
Step 950
950
#1E2A24
oklch(27.2% 0.02 163)
#577D6A 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) | #7C7869 | 0.051 |
| Deuteranopia (no green cones) | #75736B | 0.049 |
| Tritanopia (no blue cones) | #4F7D77 | 0.021 |
| Achromatopsia (no color) | #757575 | 0.053 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #577D6A
#577D6A
oklch(55.5% 0.052 162.4)
- #89677C
#89677C
oklch(55.5% 0.053 341.4)
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 #577D6A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Sage #598556 ΔE 0.044
- Slate Green #658D6D ΔE 0.052
- Battleship Gray #6C757D ΔE 0.053
- Battleship Grey #6B7C85 ΔE 0.053
- Teal #008080 ΔE 0.057
- Dusty Teal #4C9085 ΔE 0.058
- Military Green #667C3E ΔE 0.059
- Steel Grey #6F828A ΔE 0.060
Use #577D6A 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.