#516E6D
Closest named color: Slate (#516572). oklch(51.5% 0.034 193.5), rgb(81, 110, 109).
Aa
White text reads best on this color (5.52:1).
About this color
#516E6D is a medium-dark, muted teal or cyan. In OKLCH its lightness is 52%, its chroma 0.034 and its hue 193°. Its hue sits on the cool side of the wheel. The nearest named color is Slate (#516572), ΔE 0.031 away. White text reads best on it, at 5.52:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (52%) |
| Chroma | muted (0.034) |
| Temperature | cool |
| Nearest name | Slate (#516572) |
| Black text | 3.80:1 |
| White text | 5.52:1 |
Values
| HEX | #516E6D |
| RGB | rgb(81, 110, 109) |
| HSL | hsl(178, 15%, 37%) |
| OKLCH | oklch(51.5% 0.034 193.5) |
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 #516E6D | 5.52:1 | AA | Lc -82.9 | Fine for body text |
| Black text on #516E6D | 3.80:1 | AA large text | Lc 26.5 | Dividers and decoration only |
| #516E6D text on white | 5.52:1 | AA | Lc 77.6 | Fine for body text |
| #516E6D text on black | 3.80:1 | AA large text | Lc -24.2 | 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 700.
-
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
#D3DBDB
oklch(88.5% 0.009 197)
-
Step 300
300
#B5C4C3
oklch(80.9% 0.017 192)
-
Step 400
400
#8FA6A5
oklch(70.7% 0.026 193.4)
-
Step 500
500
#73908F
oklch(63.1% 0.033 193.7)
-
Step 600
600
#5B7A79
oklch(55.5% 0.036 193.7)
-
Step 700
700 (this color)
#516E6D
oklch(51.5% 0.034 193.5)
-
Step 800
800
#3D5453
oklch(42.7% 0.028 192.8)
-
Step 900
900
#344545
oklch(37.6% 0.022 196.3)
-
Step 950
950
#1F2928
oklch(27.1% 0.014 188.9)
#516E6D 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) | #6A6B6D | 0.035 |
| Deuteranopia (no green cones) | #65676D | 0.033 |
| Tritanopia (no blue cones) | #48706E | 0.011 |
| Achromatopsia (no color) | #696969 | 0.034 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #516E6D
#516E6D
oklch(51.5% 0.034 193.5)
- #7A6062
#7A6062
oklch(51.6% 0.034 13.1)
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 #516E6D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Slate #516572 ΔE 0.031
- Dim Gray #696969 ΔE 0.034
- Battleship Gray #6C757D ΔE 0.050
- Metallic Blue #4F738E ΔE 0.050
- Deep Turquoise #017374 ΔE 0.053
- Dark Aquamarine #017371 ΔE 0.054
- Deep Aqua #08787F ΔE 0.054
- Bluegreen #017A79 ΔE 0.056
Use #516E6D 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.