#516371
Closest named color: Slate (#516572). oklch(49% 0.031 241.7), rgb(81, 99, 113).
Aa
White text reads best on this color (6.22:1).
About this color
#516371 is a medium-dark, muted blue. In OKLCH its lightness is 49%, its chroma 0.031 and its hue 242°. Its hue sits on the cool side of the wheel. The nearest named color is Slate (#516572), ΔE 0.006 away. White text reads best on it, at 6.22:1.
| Hue family | Blues |
| Lightness | medium-dark (49%) |
| Chroma | muted (0.031) |
| Temperature | cool |
| Nearest name | Slate (#516572) |
| Black text | 3.37:1 |
| White text | 6.22:1 |
Values
| HEX | #516371 |
| RGB | rgb(81, 99, 113) |
| HSL | hsl(206, 16%, 38%) |
| OKLCH | oklch(49% 0.031 241.7) |
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 #516371 | 6.22:1 | AA | Lc -86.2 | Fine for body text |
| Black text on #516371 | 3.37:1 | AA large text | Lc 23.0 | Dividers and decoration only |
| #516371 text on white | 6.22:1 | AA | Lc 81.0 | Fine for body text |
| #516371 text on black | 3.37:1 | AA large text | Lc -20.8 | 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
#E7EAEC
oklch(93.5% 0.004 236.5)
-
Step 200
200
#D4DADE
oklch(88.5% 0.009 236.6)
-
Step 300
300
#B8C2CA
oklch(80.9% 0.016 241.8)
-
Step 400
400
#94A3AF
oklch(70.8% 0.024 242)
-
Step 500
500
#798C9B
oklch(63% 0.032 241.9)
-
Step 600
600
#627686
oklch(55.6% 0.034 242.4)
-
Step 700
700 (this color)
#516371
oklch(49% 0.031 241.7)
-
Step 800
800
#43515C
oklch(42.7% 0.025 241.9)
-
Step 900
900
#38434C
oklch(37.7% 0.021 243)
-
Step 950
950
#21272C
oklch(26.9% 0.013 243.3)
#516371 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) | #5D6372 | 0.017 |
| Deuteranopia (no green cones) | #595F71 | 0.016 |
| Tritanopia (no blue cones) | #486667 | 0.025 |
| Achromatopsia (no color) | #616161 | 0.032 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #516371
#516371
oklch(49% 0.031 241.7)
- #6E5D4E
#6E5D4E
oklch(49.1% 0.032 63.4)
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 #516371, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Slate #516572 ΔE 0.006
- Dusty Grape #545775 ΔE 0.039
- YInMn Blue #415A77 ΔE 0.040
- Dim Gray #696969 ΔE 0.044
- Denim #3B638C ΔE 0.050
- Metallic Blue #4F738E ΔE 0.056
- Dusk #4E5481 ΔE 0.059
- Dusky Blue #475F94 ΔE 0.063
Use #516371 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.