#517F71
Closest named color: Dark Sage (#598556). oklch(55.9% 0.055 173), rgb(81, 127, 113).
Aa
Black text reads best on this color (4.62:1).
About this color
#517F71 is a medium-dark, muted teal or cyan. In OKLCH its lightness is 56%, its chroma 0.055 and its hue 173°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Sage (#598556), ΔE 0.049 away. Black text reads best on it, at 4.62:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (56%) |
| Chroma | muted (0.055) |
| Temperature | cool |
| Nearest name | Dark Sage (#598556) |
| Black text | 4.62:1 |
| White text | 4.54:1 |
Values
| HEX | #517F71 |
| RGB | rgb(81, 127, 113) |
| HSL | hsl(162, 22%, 41%) |
| OKLCH | oklch(55.9% 0.055 173) |
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 #517F71 | 4.54:1 | AA | Lc -76.9 | Fine for body text |
| Black text on #517F71 | 4.62:1 | AA | Lc 32.6 | Non-text elements, placeholder text |
| #517F71 text on white | 4.54:1 | AA | Lc 71.5 | Content text, not long reading |
| #517F71 text on black | 4.62:1 | AA | Lc -30.2 | 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
#D0DCD8
oklch(88.4% 0.014 174.1)
-
Step 300
300
#B1C6BF
oklch(80.9% 0.025 173.7)
-
Step 400
400
#88A99E
oklch(70.7% 0.04 172.8)
-
Step 500
500
#699486
oklch(63.1% 0.052 172.4)
-
Step 600
600 (this color)
#517F71
oklch(55.9% 0.055 173)
-
Step 700
700
#416A5E
oklch(49% 0.05 173.6)
-
Step 800
800
#36574D
oklch(42.8% 0.042 173.1)
-
Step 900
900
#2F4740
oklch(37.6% 0.032 174.4)
-
Step 950
950
#1C2A25
oklch(27% 0.021 170.6)
#517F71 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) | #7C7970 | 0.058 |
| Deuteranopia (no green cones) | #747472 | 0.054 |
| Tritanopia (no blue cones) | #44807B | 0.018 |
| Achromatopsia (no color) | #767676 | 0.056 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #517F71
#517F71
oklch(55.9% 0.055 173)
- #8E6777
#8E6777
oklch(55.9% 0.055 352.6)
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 #517F71, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Sage #598556 ΔE 0.049
- Teal #008080 ΔE 0.049
- Battleship Grey #6B7C85 ΔE 0.050
- Dusty Teal #4C9085 ΔE 0.050
- Battleship Gray #6C757D ΔE 0.053
- Slate Green #658D6D ΔE 0.053
- Dark Cyan #008B8B ΔE 0.054
- Bluegreen #017A79 ΔE 0.055
Use #517F71 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.