#516E7C
Closest named color: Slate (#516572). oklch(52.1% 0.04 229.2), rgb(81, 110, 124).
Aa
White text reads best on this color (5.42:1).
About this color
#516E7C is a medium-dark, muted teal or cyan. In OKLCH its lightness is 52%, its chroma 0.040 and its hue 229°. Its hue sits on the cool side of the wheel. The nearest named color is Slate (#516572), ΔE 0.027 away. White text reads best on it, at 5.42:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (52%) |
| Chroma | muted (0.040) |
| Temperature | cool |
| Nearest name | Slate (#516572) |
| Black text | 3.87:1 |
| White text | 5.42:1 |
Values
| HEX | #516E7C |
| RGB | rgb(81, 110, 124) |
| HSL | hsl(200, 21%, 40%) |
| OKLCH | oklch(52.1% 0.04 229.2) |
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 #516E7C | 5.42:1 | AA | Lc -82.3 | Fine for body text |
| Black text on #516E7C | 3.87:1 | AA large text | Lc 27.0 | Dividers and decoration only |
| #516E7C text on white | 5.42:1 | AA | Lc 77.0 | Fine for body text |
| #516E7C text on black | 3.87:1 | AA large text | Lc -24.7 | 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
#F4F6F7
oklch(97.2% 0.003 228.8)
-
Step 100
100
#E6EBED
oklch(93.7% 0.006 223.5)
-
Step 200
200
#D2DBDF
oklch(88.6% 0.011 226)
-
Step 300
300
#B4C3CB
oklch(80.8% 0.02 230.8)
-
Step 400
400
#8DA5B0
oklch(70.7% 0.031 227.2)
-
Step 500
500
#718F9D
oklch(63.2% 0.04 228)
-
Step 600
600
#597988
oklch(55.7% 0.043 228.5)
-
Step 700
700 (this color)
#516E7C
oklch(52.1% 0.04 229.2)
-
Step 800
800
#3C535E
oklch(42.8% 0.033 229)
-
Step 900
900
#33444D
oklch(37.6% 0.027 231.4)
-
Step 950
950
#1E282D
oklch(27% 0.017 229.8)
#516E7C 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) | #676D7D | 0.030 |
| Deuteranopia (no green cones) | #61687C | 0.027 |
| Tritanopia (no blue cones) | #437272 | 0.029 |
| Achromatopsia (no color) | #6A6A6A | 0.040 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #516E7C
#516E7C
oklch(52.1% 0.04 229.2)
- #7D6355
#7D6355
oklch(52.2% 0.04 49.8)
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 #516E7C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Slate #516572 ΔE 0.027
- Metallic Blue #4F738E ΔE 0.028
- Dim Gray #696969 ΔE 0.040
- Battleship Gray #6C757D ΔE 0.044
- Dull Blue #49759C ΔE 0.049
- Deep Aqua #08787F ΔE 0.055
- Stormy Blue #507B9C ΔE 0.055
- Cerulean #457B9D ΔE 0.055
Use #516E7C 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.