#596B75
Closest named color: Slate (#516572). oklch(51.7% 0.027 232.3), rgb(89, 107, 117).
Aa
White text reads best on this color (5.54:1).
About this color
#596B75 is a medium-dark close to neutral grey. In OKLCH its lightness is 52%, its chroma 0.027. It has too little chroma to lean warm or cool. The nearest named color is Slate (#516572), ΔE 0.022 away. White text reads best on it, at 5.54:1.
| Hue family | Neutrals |
| Lightness | medium-dark (52%) |
| Chroma | close to neutral grey (0.027) |
| Temperature | neutral |
| Nearest name | Slate (#516572) |
| Black text | 3.78:1 |
| White text | 5.54:1 |
Values
| HEX | #596B75 |
| RGB | rgb(89, 107, 117) |
| HSL | hsl(201, 14%, 40%) |
| OKLCH | oklch(51.7% 0.027 232.3) |
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 #596B75 | 5.54:1 | AA | Lc -83.0 | Fine for body text |
| Black text on #596B75 | 3.78:1 | AA large text | Lc 26.3 | Dividers and decoration only |
| #596B75 text on white | 5.54:1 | AA | Lc 77.7 | Fine for body text |
| #596B75 text on black | 3.78:1 | AA large text | Lc -24.0 | 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
#E7EAEC
oklch(93.5% 0.004 236.5)
-
Step 200
200
#D5DADD
oklch(88.5% 0.007 233.7)
-
Step 300
300
#B9C2C8
oklch(80.9% 0.013 236.7)
-
Step 400
400
#94A3AC
oklch(70.7% 0.022 234)
-
Step 500
500
#7A8D97
oklch(63.2% 0.027 230.7)
-
Step 600
600
#637782
oklch(55.7% 0.029 232.1)
-
Step 700
700 (this color)
#596B75
oklch(51.7% 0.027 232.3)
-
Step 800
800
#435159
oklch(42.6% 0.022 233.1)
-
Step 900
900
#394349
oklch(37.6% 0.017 234.2)
-
Step 950
950
#21272B
oklch(26.8% 0.011 237.1)
#596B75 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) | #666A76 | 0.019 |
| Deuteranopia (no green cones) | #626775 | 0.017 |
| Tritanopia (no blue cones) | #516E6E | 0.020 |
| Achromatopsia (no color) | #686868 | 0.027 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #596B75
#596B75
oklch(51.7% 0.027 232.3)
- #75645A
#75645A
oklch(51.7% 0.027 52.3)
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 #596B75, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Slate #516572 ΔE 0.022
- Dim Gray #696969 ΔE 0.027
- Metallic Blue #4F738E ΔE 0.040
- Battleship Gray #6C757D ΔE 0.042
- Battleship Grey #6B7C85 ΔE 0.059
- Dull Blue #49759C ΔE 0.061
- Grey Blue #647D8E ΔE 0.061
- Denim #3B638C ΔE 0.062
Use #596B75 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.