#504B56
Closest named color: Dark Slate Gray (#2F4F4F). oklch(42.2% 0.019 306), rgb(80, 75, 86).
Aa
White text reads best on this color (8.46:1).
About this color
#504B56 is a dark close to neutral grey. In OKLCH its lightness is 42%, its chroma 0.019. It has too little chroma to lean warm or cool. The nearest named color is Dark Slate Gray (#2F4F4F), ΔE 0.051 away. White text reads best on it, at 8.46:1.
| Hue family | Neutrals |
| Lightness | dark (42%) |
| Chroma | close to neutral grey (0.019) |
| Temperature | neutral |
| Nearest name | Dark Slate Gray (#2F4F4F) |
| Black text | 2.48:1 |
| White text | 8.46:1 |
Values
| HEX | #504B56 |
| RGB | rgb(80, 75, 86) |
| HSL | hsl(267, 7%, 32%) |
| OKLCH | oklch(42.2% 0.019 306) |
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 #504B56 | 8.46:1 | AAA | Lc -93.7 | Preferred for body text |
| Black text on #504B56 | 2.48:1 | Fails | Lc 14.8 | Not readable |
| #504B56 text on white | 8.46:1 | AAA | Lc 89.2 | Fine for body text |
| #504B56 text on black | 2.48:1 | Fails | Lc -13.1 | Not readable |
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 800.
-
Step 50
50
#F6F5F6
oklch(97.1% 0.002 325.6)
-
Step 100
100
#EAE9EB
oklch(93.5% 0.003 308.4)
-
Step 200
200
#DAD8DC
oklch(88.5% 0.006 308.4)
-
Step 300
300
#C2BFC6
oklch(80.9% 0.01 305.4)
-
Step 400
400
#A39EAA
oklch(70.7% 0.018 304.7)
-
Step 500
500
#8D8695
oklch(63.1% 0.024 306.7)
-
Step 600
600
#77707F
oklch(55.7% 0.024 306.6)
-
Step 700
700
#645E6B
oklch(49.2% 0.022 306.4)
-
Step 800
800 (this color)
#504B56
oklch(42.2% 0.019 306)
-
Step 900
900
#434048
oklch(37.7% 0.014 302.7)
-
Step 950
950
#27252A
oklch(26.9% 0.01 303.8)
#504B56 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) | #494D57 | 0.012 |
| Deuteranopia (no green cones) | #4A4D56 | 0.011 |
| Tritanopia (no blue cones) | #4F4C4F | 0.013 |
| Achromatopsia (no color) | #4D4D4D | 0.019 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #504B56
#504B56
oklch(42.2% 0.019 306)
- #4B5044
#4B5044
oklch(42.3% 0.02 125.7)
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 #504B56, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Gray #2F4F4F ΔE 0.051
- Charcoal Grey #3C4142 ΔE 0.055
- Dusty Grape #545775 ΔE 0.055
- YInMn Blue #415A77 ΔE 0.061
- Dark Grey Blue #29465B ΔE 0.061
- Purple Brown #673A3F ΔE 0.061
- Charcoal #264653 ΔE 0.064
- Dusk #4E5481 ΔE 0.069
Use #504B56 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.