#517F73
Closest named color: Battleship Grey (#6B7C85). oklch(56% 0.054 176), rgb(81, 127, 115).
Aa
Black text reads best on this color (4.63:1).
About this color
#517F73 is a medium-dark, muted teal or cyan. In OKLCH its lightness is 56%, its chroma 0.054 and its hue 176°. Its hue sits on the cool side of the wheel. The nearest named color is Battleship Grey (#6B7C85), ΔE 0.048 away. Black text reads best on it, at 4.63:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (56%) |
| Chroma | muted (0.054) |
| Temperature | cool |
| Nearest name | Battleship Grey (#6B7C85) |
| Black text | 4.63:1 |
| White text | 4.53:1 |
Values
| HEX | #517F73 |
| RGB | rgb(81, 127, 115) |
| HSL | hsl(164, 22%, 41%) |
| OKLCH | oklch(56% 0.054 176) |
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 #517F73 | 4.53:1 | AA | Lc -76.9 | Fine for body text |
| Black text on #517F73 | 4.63:1 | AA | Lc 32.7 | Non-text elements, placeholder text |
| #517F73 text on white | 4.53:1 | AA | Lc 71.4 | Content text, not long reading |
| #517F73 text on black | 4.63:1 | AA | Lc -30.3 | 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
#F3F6F5
oklch(97.1% 0.003 174.5)
-
Step 100
100
#E5EBE9
oklch(93.5% 0.007 174.4)
-
Step 200
200
#D0DCD9
oklch(88.5% 0.014 179.4)
-
Step 300
300
#B1C6C0
oklch(80.9% 0.024 176.7)
-
Step 400
400
#88A9A0
oklch(70.7% 0.039 176.7)
-
Step 500
500
#699488
oklch(63.2% 0.05 175.4)
-
Step 600
600 (this color)
#517F73
oklch(56% 0.054 176)
-
Step 700
700
#406A60
oklch(49% 0.05 177.3)
-
Step 800
800
#35574E
oklch(42.8% 0.043 175.6)
-
Step 900
900
#2F4741
oklch(37.6% 0.031 177.2)
-
Step 950
950
#1C2A26
oklch(27.1% 0.02 175.1)
#517F73 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) | #7C7A72 | 0.057 |
| Deuteranopia (no green cones) | #747474 | 0.054 |
| Tritanopia (no blue cones) | #43807B | 0.017 |
| Achromatopsia (no color) | #767676 | 0.054 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #517F73
#517F73
oklch(56% 0.054 176)
- #8F6775
#8F6775
oklch(55.9% 0.055 356.3)
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 #517F73, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Battleship Grey #6B7C85 ΔE 0.048
- Teal #008080 ΔE 0.048
- Dusty Teal #4C9085 ΔE 0.049
- Battleship Gray #6C757D ΔE 0.051
- Dark Sage #598556 ΔE 0.052
- Grey Blue #647D8E ΔE 0.052
- Dark Cyan #008B8B ΔE 0.053
- Slate Green #658D6D ΔE 0.054
Use #517F73 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.