#504F4B
Closest named color: Dark Slate Gray (#2F4F4F). oklch(42.7% 0.007 95.2), rgb(80, 79, 75).
Aa
White text reads best on this color (8.19:1).
About this color
#504F4B is a dark close to neutral grey. In OKLCH its lightness is 43%, its chroma 0.007. It has too little chroma to lean warm or cool. The nearest named color is Dark Slate Gray (#2F4F4F), ΔE 0.046 away. White text reads best on it, at 8.19:1.
| Hue family | Neutrals |
| Lightness | dark (43%) |
| Chroma | close to neutral grey (0.007) |
| Temperature | neutral |
| Nearest name | Dark Slate Gray (#2F4F4F) |
| Black text | 2.56:1 |
| White text | 8.19:1 |
Values
| HEX | #504F4B |
| RGB | rgb(80, 79, 75) |
| HSL | hsl(48, 3%, 30%) |
| OKLCH | oklch(42.7% 0.007 95.2) |
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 #504F4B | 8.19:1 | AAA | Lc -93.0 | Preferred for body text |
| Black text on #504F4B | 2.56:1 | Fails | Lc 15.6 | Dividers and decoration only |
| #504F4B text on white | 8.19:1 | AAA | Lc 88.4 | Fine for body text |
| #504F4B text on black | 2.56:1 | Fails | Lc -13.8 | 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
#F5F5F5
oklch(97% 0 0)
-
Step 100
100
#EAEAE9
oklch(93.7% 0.001 106.4)
-
Step 200
200
#D9D9D7
oklch(88.5% 0.003 106.5)
-
Step 300
300
#C1C0BE
oklch(80.8% 0.003 84.6)
-
Step 400
400
#A2A19C
oklch(70.8% 0.007 97.4)
-
Step 500
500
#8B8984
oklch(63% 0.008 88.7)
-
Step 600
600
#75736E
oklch(55.6% 0.008 88.7)
-
Step 700
700
#62615C
oklch(49.2% 0.008 97.5)
-
Step 800
800 (this color)
#504F4B
oklch(42.7% 0.007 95.2)
-
Step 900
900
#42423F
oklch(37.8% 0.005 106.6)
-
Step 950
950
#272625
oklch(26.9% 0.002 67.7)
#504F4B 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) | #504F4B | 0.000 |
| Deuteranopia (no green cones) | #504F4B | 0.000 |
| Tritanopia (no blue cones) | #514E4E | 0.007 |
| Achromatopsia (no color) | #4F4F4F | 0.007 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
This color is close to neutral, so it has no meaningful hue to rotate. Hue harmonies are omitted.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #504F4B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Gray #2F4F4F ΔE 0.046
- Charcoal Grey #3C4142 ΔE 0.057
- Purple Brown #673A3F ΔE 0.067
- Dusty Grape #545775 ΔE 0.068
- YInMn Blue #415A77 ΔE 0.071
- Charcoal #264653 ΔE 0.071
- Mud Brown #60460F ΔE 0.072
- Dark Grey Blue #29465B ΔE 0.073
Use #504F4B 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.