#536664
Closest named color: Slate (#516572). oklch(49.4% 0.023 188.6), rgb(83, 102, 100).
Aa
White text reads best on this color (6.08:1).
About this color
#536664 is a medium-dark close to neutral grey. In OKLCH its lightness is 49%, its chroma 0.023. It has too little chroma to lean warm or cool. The nearest named color is Slate (#516572), ΔE 0.024 away. White text reads best on it, at 6.08:1.
| Hue family | Neutrals |
| Lightness | medium-dark (49%) |
| Chroma | close to neutral grey (0.023) |
| Temperature | neutral |
| Nearest name | Slate (#516572) |
| Black text | 3.45:1 |
| White text | 6.08:1 |
Values
| HEX | #536664 |
| RGB | rgb(83, 102, 100) |
| HSL | hsl(174, 10%, 36%) |
| OKLCH | oklch(49.4% 0.023 188.6) |
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 #536664 | 6.08:1 | AA | Lc -85.6 | Fine for body text |
| Black text on #536664 | 3.45:1 | AA large text | Lc 23.7 | Dividers and decoration only |
| #536664 text on white | 6.08:1 | AA | Lc 80.4 | Fine for body text |
| #536664 text on black | 3.45:1 | AA large text | Lc -21.5 | 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
#F4F6F5
oklch(97.1% 0.002 165.1)
-
Step 100
100
#E7EAEA
oklch(93.5% 0.003 197.1)
-
Step 200
200
#D5DADA
oklch(88.5% 0.005 197.1)
-
Step 300
300
#B9C3C2
oklch(80.9% 0.011 189.8)
-
Step 400
400
#95A4A3
oklch(70.7% 0.017 191.9)
-
Step 500
500
#7A8E8C
oklch(63% 0.023 189.2)
-
Step 600
600
#637876
oklch(55.5% 0.025 189.4)
-
Step 700
700 (this color)
#536664
oklch(49.4% 0.023 188.6)
-
Step 800
800
#435351
oklch(42.8% 0.02 187.1)
-
Step 900
900
#394443
oklch(37.6% 0.014 189.8)
-
Step 950
950
#212827
oklch(27% 0.01 186.1)
#536664 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) | #646464 | 0.025 |
| Deuteranopia (no green cones) | #606164 | 0.023 |
| Tritanopia (no blue cones) | #4E6765 | 0.007 |
| Achromatopsia (no color) | #626262 | 0.023 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #536664
#536664
oklch(49.4% 0.023 188.6)
- #6E5C5F
#6E5C5F
oklch(49.3% 0.024 6.7)
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 #536664, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Slate #516572 ΔE 0.024
- Dim Gray #696969 ΔE 0.035
- Dark Aqua #05696B ΔE 0.060
- Dusty Grape #545775 ΔE 0.061
- YInMn Blue #415A77 ΔE 0.061
- Dark Green Blue #1F6357 ΔE 0.062
- Dark Aquamarine #017371 ΔE 0.063
- Deep Turquoise #017374 ΔE 0.063
Use #536664 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.