#536668
Closest named color: Slate (#516572). oklch(49.5% 0.023 204.3), rgb(83, 102, 104).
Aa
White text reads best on this color (6.05:1).
About this color
#536668 is a medium-dark close to neutral grey. In OKLCH its lightness is 50%, its chroma 0.023. It has too little chroma to lean warm or cool. The nearest named color is Slate (#516572), ΔE 0.018 away. White text reads best on it, at 6.05:1.
| Hue family | Neutrals |
| Lightness | medium-dark (50%) |
| Chroma | close to neutral grey (0.023) |
| Temperature | neutral |
| Nearest name | Slate (#516572) |
| Black text | 3.46:1 |
| White text | 6.05:1 |
Values
| HEX | #536668 |
| RGB | rgb(83, 102, 104) |
| HSL | hsl(186, 11%, 37%) |
| OKLCH | oklch(49.5% 0.023 204.3) |
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 #536668 | 6.05:1 | AA | Lc -85.4 | Fine for body text |
| Black text on #536668 | 3.46:1 | AA large text | Lc 23.8 | Dividers and decoration only |
| #536668 text on white | 6.05:1 | AA | Lc 80.3 | Fine for body text |
| #536668 text on black | 3.46:1 | AA large text | Lc -21.6 | 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
#E7EAEB
oklch(93.5% 0.004 219.5)
-
Step 200
200
#D5DADB
oklch(88.5% 0.006 211)
-
Step 300
300
#B9C3C4
oklch(81% 0.011 204.1)
-
Step 400
400
#94A4A6
oklch(70.7% 0.018 205.8)
-
Step 500
500
#7A8E90
oklch(63.2% 0.023 204)
-
Step 600
600
#63787A
oklch(55.7% 0.025 203.6)
-
Step 700
700 (this color)
#536668
oklch(49.5% 0.023 204.3)
-
Step 800
800
#435254
oklch(42.6% 0.019 206.4)
-
Step 900
900
#394445
oklch(37.7% 0.014 203.3)
-
Step 950
950
#212829
oklch(27% 0.01 207.1)
#536668 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) | #636468 | 0.023 |
| Deuteranopia (no green cones) | #5F6168 | 0.022 |
| Tritanopia (no blue cones) | #4D6867 | 0.010 |
| Achromatopsia (no color) | #626262 | 0.023 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #536668
#536668
oklch(49.5% 0.023 204.3)
- #6F5D5B
#6F5D5B
oklch(49.5% 0.024 25.5)
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 #536668, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Slate #516572 ΔE 0.018
- Dim Gray #696969 ΔE 0.034
- Dusty Grape #545775 ΔE 0.057
- YInMn Blue #415A77 ΔE 0.057
- Dark Aqua #05696B ΔE 0.061
- Metallic Blue #4F738E ΔE 0.061
- Deep Turquoise #017374 ΔE 0.063
- Dark Aquamarine #017371 ΔE 0.064
Use #536668 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.