#577D6D
Closest named color: Dark Sage (#598556). oklch(55.6% 0.05 166.6), rgb(87, 125, 109).
Aa
White text reads best on this color (4.60:1).
About this color
#577D6D is a medium-dark, muted green. In OKLCH its lightness is 56%, its chroma 0.050 and its hue 167°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Sage (#598556), ΔE 0.048 away. White text reads best on it, at 4.60:1.
| Hue family | Greens |
| Lightness | medium-dark (56%) |
| Chroma | muted (0.050) |
| Temperature | in between |
| Nearest name | Dark Sage (#598556) |
| Black text | 4.55:1 |
| White text | 4.60:1 |
Values
| HEX | #577D6D |
| RGB | rgb(87, 125, 109) |
| HSL | hsl(155, 18%, 42%) |
| OKLCH | oklch(55.6% 0.05 166.6) |
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 #577D6D | 4.60:1 | AA | Lc -77.4 | Fine for body text |
| Black text on #577D6D | 4.55:1 | AA | Lc 32.1 | Non-text elements, placeholder text |
| #577D6D text on white | 4.60:1 | AA | Lc 72.0 | Content text, not long reading |
| #577D6D text on black | 4.55:1 | AA | Lc -29.7 | 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
#E6EBE9
oklch(93.6% 0.006 170.4)
-
Step 200
200
#D2DCD7
oklch(88.5% 0.013 164.8)
-
Step 300
300
#B4C5BD
oklch(80.8% 0.022 166)
-
Step 400
400
#8CA89C
oklch(70.7% 0.036 167.5)
-
Step 500
500
#6F9383
oklch(63.1% 0.047 165.9)
-
Step 600
600 (this color)
#577D6D
oklch(55.6% 0.05 166.6)
-
Step 700
700
#47695B
oklch(49% 0.045 167)
-
Step 800
800
#3A564A
oklch(42.7% 0.039 166.1)
-
Step 900
900
#32473E
oklch(37.7% 0.031 166.5)
-
Step 950
950
#1E2924
oklch(26.9% 0.018 165.6)
#577D6D 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) | #7B786C | 0.049 |
| Deuteranopia (no green cones) | #75736E | 0.049 |
| Tritanopia (no blue cones) | #4E7D78 | 0.018 |
| Achromatopsia (no color) | #757575 | 0.050 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #577D6D
#577D6D
oklch(55.6% 0.05 166.6)
- #8A6879
#8A6879
oklch(55.7% 0.05 347.3)
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 #577D6D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Sage #598556 ΔE 0.048
- Battleship Grey #6B7C85 ΔE 0.049
- Battleship Gray #6C757D ΔE 0.049
- Slate Green #658D6D ΔE 0.053
- Teal #008080 ΔE 0.056
- Dusty Teal #4C9085 ΔE 0.056
- Grey Blue #647D8E ΔE 0.056
- Steel Grey #6F828A ΔE 0.057
Use #577D6D 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.