#577A70
Closest named color: Battleship Gray (#6C757D). oklch(55% 0.043 175.1), rgb(87, 122, 112).
Aa
White text reads best on this color (4.74:1).
About this color
#577A70 is a medium-dark, muted teal or cyan. In OKLCH its lightness is 55%, its chroma 0.043 and its hue 175°. Its hue sits on the cool side of the wheel. The nearest named color is Battleship Gray (#6C757D), ΔE 0.041 away. White text reads best on it, at 4.74:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (55%) |
| Chroma | muted (0.043) |
| Temperature | cool |
| Nearest name | Battleship Gray (#6C757D) |
| Black text | 4.42:1 |
| White text | 4.74:1 |
Values
| HEX | #577A70 |
| RGB | rgb(87, 122, 112) |
| HSL | hsl(163, 17%, 41%) |
| OKLCH | oklch(55% 0.043 175.1) |
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 #577A70 | 4.74:1 | AA | Lc -78.4 | Fine for body text |
| Black text on #577A70 | 4.42:1 | AA large text | Lc 31.1 | Non-text elements, placeholder text |
| #577A70 text on white | 4.74:1 | AA | Lc 72.9 | Content text, not long reading |
| #577A70 text on black | 4.42:1 | AA large text | Lc -28.8 | 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
#D2DBD9
oklch(88.4% 0.01 181.4)
-
Step 300
300
#B5C5C0
oklch(81% 0.019 175.2)
-
Step 400
400
#8DA79F
oklch(70.6% 0.031 174.8)
-
Step 500
500
#719288
oklch(63.2% 0.04 174.5)
-
Step 600
600 (this color)
#577A70
oklch(55% 0.043 175.1)
-
Step 700
700
#49685F
oklch(49% 0.039 174.7)
-
Step 800
800
#3C554E
oklch(42.7% 0.033 175.5)
-
Step 900
900
#334641
oklch(37.6% 0.026 176.9)
-
Step 950
950
#1E2926
oklch(26.9% 0.016 176.5)
#577A70 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) | #787670 | 0.046 |
| Deuteranopia (no green cones) | #717171 | 0.043 |
| Tritanopia (no blue cones) | #4E7B77 | 0.013 |
| Achromatopsia (no color) | #737373 | 0.043 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #577A70
#577A70
oklch(55% 0.043 175.1)
- #866773
#866773
oklch(54.9% 0.043 353.5)
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 #577A70, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Battleship Gray #6C757D ΔE 0.041
- Battleship Grey #6B7C85 ΔE 0.044
- Grey Blue #647D8E ΔE 0.050
- Dim Gray #696969 ΔE 0.052
- Teal #008080 ΔE 0.055
- Steel Grey #6F828A ΔE 0.055
- Bluegreen #017A79 ΔE 0.057
- Metallic Blue #4F738E ΔE 0.058
Use #577A70 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.