#516173
Closest named color: Slate (#516572). oklch(48.6% 0.035 251.6), rgb(81, 97, 115).
Aa
White text reads best on this color (6.34:1).
About this color
#516173 is a medium-dark, muted blue. In OKLCH its lightness is 49%, its chroma 0.035 and its hue 252°. Its hue sits on the cool side of the wheel. The nearest named color is Slate (#516572), ΔE 0.013 away. White text reads best on it, at 6.34:1.
| Hue family | Blues |
| Lightness | medium-dark (49%) |
| Chroma | muted (0.035) |
| Temperature | cool |
| Nearest name | Slate (#516572) |
| Black text | 3.30:1 |
| White text | 6.34:1 |
Values
| HEX | #516173 |
| RGB | rgb(81, 97, 115) |
| HSL | hsl(212, 17%, 38%) |
| OKLCH | oklch(48.6% 0.035 251.6) |
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 #516173 | 6.34:1 | AA | Lc -86.7 | Fine for body text |
| Black text on #516173 | 3.30:1 | AA large text | Lc 22.5 | Dividers and decoration only |
| #516173 text on white | 6.34:1 | AA | Lc 81.6 | Fine for body text |
| #516173 text on black | 3.30:1 | AA large text | Lc -20.3 | 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
#F4F5F7
oklch(97% 0.003 264.5)
-
Step 100
100
#E7EAED
oklch(93.6% 0.005 247.9)
-
Step 200
200
#D5DADF
oklch(88.6% 0.009 247.9)
-
Step 300
300
#B9C2CC
oklch(81% 0.017 250.9)
-
Step 400
400
#95A2B1
oklch(70.7% 0.026 252)
-
Step 500
500
#7B8B9E
oklch(63.1% 0.034 252.8)
-
Step 600
600
#637589
oklch(55.5% 0.038 251.2)
-
Step 700
700 (this color)
#516173
oklch(48.6% 0.035 251.6)
-
Step 800
800
#44505F
oklch(42.7% 0.029 254.1)
-
Step 900
900
#39434E
oklch(37.8% 0.023 250.9)
-
Step 950
950
#21272D
oklch(26.9% 0.014 248.4)
#516173 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) | #5A6174 | 0.013 |
| Deuteranopia (no green cones) | #565E73 | 0.011 |
| Tritanopia (no blue cones) | #476567 | 0.030 |
| Achromatopsia (no color) | #5F5F5F | 0.035 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #516173
#516173
oklch(48.6% 0.035 251.6)
- #6C5C4A
#6C5C4A
oklch(48.5% 0.035 70.2)
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 #516173, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Slate #516572 ΔE 0.013
- Dusty Grape #545775 ΔE 0.031
- YInMn Blue #415A77 ΔE 0.034
- Denim #3B638C ΔE 0.045
- Dim Gray #696969 ΔE 0.049
- Dusk #4E5481 ΔE 0.051
- Dusky Blue #475F94 ΔE 0.057
- Metallic Blue #4F738E ΔE 0.059
Use #516173 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.