#504A55
Closest named color: Dark Slate Gray (#2F4F4F). oklch(41.9% 0.02 309.8), rgb(80, 74, 85).
Aa
White text reads best on this color (8.56:1).
About this color
#504A55 is a dark close to neutral grey. In OKLCH its lightness is 42%, its chroma 0.020. It has too little chroma to lean warm or cool. The nearest named color is Dark Slate Gray (#2F4F4F), ΔE 0.052 away. White text reads best on it, at 8.56:1.
| Hue family | Neutrals |
| Lightness | dark (42%) |
| Chroma | close to neutral grey (0.020) |
| Temperature | neutral |
| Nearest name | Dark Slate Gray (#2F4F4F) |
| Black text | 2.45:1 |
| White text | 8.56:1 |
Values
| HEX | #504A55 |
| RGB | rgb(80, 74, 85) |
| HSL | hsl(273, 7%, 31%) |
| OKLCH | oklch(41.9% 0.02 309.8) |
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 #504A55 | 8.56:1 | AAA | Lc -94.0 | Preferred for body text |
| Black text on #504A55 | 2.45:1 | Fails | Lc 14.5 | Not readable |
| #504A55 text on white | 8.56:1 | AAA | Lc 89.5 | Fine for body text |
| #504A55 text on black | 2.45:1 | Fails | Lc -12.8 | 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
#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
#C3BFC6
oklch(81% 0.011 311.2)
-
Step 400
400
#A49EA9
oklch(70.8% 0.017 310)
-
Step 500
500
#8E8694
oklch(63.2% 0.023 311)
-
Step 600
600
#786F7F
oklch(55.5% 0.027 310.5)
-
Step 700
700
#655D6B
oklch(49.1% 0.024 310.9)
-
Step 800
800 (this color)
#504A55
oklch(41.9% 0.02 309.8)
-
Step 900
900
#443F48
oklch(37.6% 0.016 310.3)
-
Step 950
950
#28252A
oklch(27% 0.01 312.1)
#504A55 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) | #484C56 | 0.013 |
| Deuteranopia (no green cones) | #4A4C55 | 0.011 |
| Tritanopia (no blue cones) | #504B4E | 0.013 |
| Achromatopsia (no color) | #4C4C4C | 0.020 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #504A55
#504A55
oklch(41.9% 0.02 309.8)
- #494F44
#494F44
oklch(41.9% 0.019 130.7)
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 #504A55, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Gray #2F4F4F ΔE 0.052
- Charcoal Grey #3C4142 ΔE 0.053
- Dusty Grape #545775 ΔE 0.058
- Purple Brown #673A3F ΔE 0.059
- Dark Grey Blue #29465B ΔE 0.060
- Charcoal #264653 ΔE 0.063
- YInMn Blue #415A77 ΔE 0.064
- Brownish Purple #76424E ΔE 0.070
Use #504A55 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.