#517173
Closest named color: Slate (#516572). oklch(52.5% 0.037 200.9), rgb(81, 113, 115).
Aa
White text reads best on this color (5.30:1).
About this color
#517173 is a medium-dark, muted teal or cyan. In OKLCH its lightness is 52%, its chroma 0.037 and its hue 201°. Its hue sits on the cool side of the wheel. The nearest named color is Slate (#516572), ΔE 0.037 away. White text reads best on it, at 5.30:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (52%) |
| Chroma | muted (0.037) |
| Temperature | cool |
| Nearest name | Slate (#516572) |
| Black text | 3.95:1 |
| White text | 5.30:1 |
Values
| HEX | #517173 |
| RGB | rgb(81, 113, 115) |
| HSL | hsl(184, 17%, 38%) |
| OKLCH | oklch(52.5% 0.037 200.9) |
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 #517173 | 5.30:1 | AA | Lc -81.7 | Fine for body text |
| Black text on #517173 | 3.95:1 | AA large text | Lc 27.7 | Dividers and decoration only |
| #517173 text on white | 5.30:1 | AA | Lc 76.4 | Fine for body text |
| #517173 text on black | 3.95:1 | AA large text | Lc -25.4 | 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
#F4F6F6
oklch(97.2% 0.002 197.1)
-
Step 100
100
#E6EBEB
oklch(93.6% 0.005 197.1)
-
Step 200
200
#D2DBDB
oklch(88.5% 0.01 197)
-
Step 300
300
#B5C4C5
oklch(80.9% 0.017 201.7)
-
Step 400
400
#8EA6A7
oklch(70.7% 0.027 199.7)
-
Step 500
500
#729092
oklch(63.1% 0.034 201.4)
-
Step 600
600 (this color)
#517173
oklch(52.5% 0.037 200.9)
-
Step 700
700
#4A6769
oklch(49.2% 0.034 201.4)
-
Step 800
800
#3D5455
oklch(42.7% 0.028 199.5)
-
Step 900
900
#344546
oklch(37.6% 0.022 200.7)
-
Step 950
950
#1F2929
oklch(27.1% 0.014 196.4)
#517173 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) | #6C6E73 | 0.037 |
| Deuteranopia (no green cones) | #666973 | 0.035 |
| Tritanopia (no blue cones) | #457371 | 0.016 |
| Achromatopsia (no color) | #6B6B6B | 0.037 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #517173
#517173
oklch(52.5% 0.037 200.9)
- #7E6261
#7E6261
oklch(52.4% 0.036 20.8)
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 #517173, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Slate #516572 ΔE 0.037
- Dim Gray #696969 ΔE 0.037
- Metallic Blue #4F738E ΔE 0.042
- Battleship Gray #6C757D ΔE 0.043
- Deep Aqua #08787F ΔE 0.050
- Bluegreen #017A79 ΔE 0.053
- Deep Turquoise #017374 ΔE 0.053
- Dark Aquamarine #017371 ΔE 0.054
Use #517173 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.