#577E6F
Closest named color: Battleship Grey (#6B7C85). oklch(55.9% 0.05 168.6), rgb(87, 126, 111).
Aa
Black text reads best on this color (4.61:1).
About this color
#577E6F is a medium-dark, muted green. In OKLCH its lightness is 56%, its chroma 0.050 and its hue 169°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Battleship Grey (#6B7C85), ΔE 0.047 away. Black text reads best on it, at 4.61:1.
| Hue family | Greens |
| Lightness | medium-dark (56%) |
| Chroma | muted (0.050) |
| Temperature | in between |
| Nearest name | Battleship Grey (#6B7C85) |
| Black text | 4.61:1 |
| White text | 4.54:1 |
Values
| HEX | #577E6F |
| RGB | rgb(87, 126, 111) |
| HSL | hsl(157, 18%, 42%) |
| OKLCH | oklch(55.9% 0.05 168.6) |
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 #577E6F | 4.54:1 | AA | Lc -77.0 | Fine for body text |
| Black text on #577E6F | 4.61:1 | AA | Lc 32.5 | Non-text elements, placeholder text |
| #577E6F text on white | 4.54:1 | AA | Lc 71.5 | Content text, not long reading |
| #577E6F text on black | 4.61:1 | AA | Lc -30.1 | Non-text elements, placeholder text |
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
#B3C5BE
oklch(80.8% 0.022 170.5)
-
Step 400
400
#8CA89D
oklch(70.7% 0.035 169.5)
-
Step 500
500
#6F9384
oklch(63.2% 0.046 167.4)
-
Step 600
600 (this color)
#577E6F
oklch(55.9% 0.05 168.6)
-
Step 700
700
#46695C
oklch(49% 0.046 169.2)
-
Step 800
800
#3A564B
oklch(42.7% 0.038 168.1)
-
Step 900
900
#32473F
oklch(37.8% 0.03 169.2)
-
Step 950
950
#1D2A25
oklch(27.1% 0.02 169.2)
#577E6F 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) | #7C796E | 0.051 |
| Deuteranopia (no green cones) | #757470 | 0.048 |
| Tritanopia (no blue cones) | #4E7E7A | 0.018 |
| Achromatopsia (no color) | #767676 | 0.050 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #577E6F
#577E6F
oklch(55.9% 0.05 168.6)
- #8B6979
#8B6979
oklch(56% 0.049 348.9)
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 #577E6F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Battleship Grey #6B7C85 ΔE 0.047
- Dark Sage #598556 ΔE 0.048
- Battleship Gray #6C757D ΔE 0.049
- Slate Green #658D6D ΔE 0.051
- Dusty Teal #4C9085 ΔE 0.053
- Grey Blue #647D8E ΔE 0.054
- Steel Grey #6F828A ΔE 0.054
- Teal #008080 ΔE 0.055
Use #577E6F 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.