#536A69
Closest named color: Slate (#516572). oklch(50.5% 0.027 193), rgb(83, 106, 105).
Aa
White text reads best on this color (5.77:1).
About this color
#536A69 is a medium-dark close to neutral grey. In OKLCH its lightness is 51%, its chroma 0.027. It has too little chroma to lean warm or cool. The nearest named color is Slate (#516572), ΔE 0.025 away. White text reads best on it, at 5.77:1.
| Hue family | Neutrals |
| Lightness | medium-dark (51%) |
| Chroma | close to neutral grey (0.027) |
| Temperature | neutral |
| Nearest name | Slate (#516572) |
| Black text | 3.63:1 |
| White text | 5.77:1 |
Values
| HEX | #536A69 |
| RGB | rgb(83, 106, 105) |
| HSL | hsl(177, 12%, 37%) |
| OKLCH | oklch(50.5% 0.027 193) |
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 #536A69 | 5.77:1 | AA | Lc -84.2 | Fine for body text |
| Black text on #536A69 | 3.63:1 | AA large text | Lc 25.2 | Dividers and decoration only |
| #536A69 text on white | 5.77:1 | AA | Lc 78.9 | Fine for body text |
| #536A69 text on black | 3.63:1 | AA large text | Lc -22.9 | 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
#E7EBEA
oklch(93.7% 0.004 179.7)
-
Step 200
200
#D4DBDA
oklch(88.6% 0.008 186.9)
-
Step 300
300
#B7C3C3
oklch(80.8% 0.013 196.9)
-
Step 400
400
#92A5A4
oklch(70.7% 0.021 192.8)
-
Step 500
500
#778F8E
oklch(63.1% 0.027 193.4)
-
Step 600
600
#607978
oklch(55.6% 0.029 193.3)
-
Step 700
700 (this color)
#536A69
oklch(50.5% 0.027 193)
-
Step 800
800
#415352
oklch(42.7% 0.022 192.2)
-
Step 900
900
#374544
oklch(37.8% 0.018 191.1)
-
Step 950
950
#202828
oklch(26.9% 0.011 196.5)
#536A69 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) | #676869 | 0.029 |
| Deuteranopia (no green cones) | #636469 | 0.028 |
| Tritanopia (no blue cones) | #4C6B6A | 0.009 |
| Achromatopsia (no color) | #666666 | 0.028 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #536A69
#536A69
oklch(50.5% 0.027 193)
- #745F60
#745F60
oklch(50.7% 0.027 14.9)
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 #536A69, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Slate #516572 ΔE 0.025
- Dim Gray #696969 ΔE 0.031
- Battleship Gray #6C757D ΔE 0.056
- Metallic Blue #4F738E ΔE 0.057
- Deep Turquoise #017374 ΔE 0.058
- Dark Aquamarine #017371 ΔE 0.059
- Dark Aqua #05696B ΔE 0.061
- Deep Aqua #08787F ΔE 0.063
Use #536A69 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.