#51585F
Closest named color: Dusty Grape (#545775). oklch(45.7% 0.014 248.1), rgb(81, 88, 95).
Aa
White text reads best on this color (7.21:1).
About this color
#51585F is a medium-dark close to neutral grey. In OKLCH its lightness is 46%, its chroma 0.014. It has too little chroma to lean warm or cool. The nearest named color is Dusty Grape (#545775), ΔE 0.038 away. White text reads best on it, at 7.21:1.
| Hue family | Neutrals |
| Lightness | medium-dark (46%) |
| Chroma | close to neutral grey (0.014) |
| Temperature | neutral |
| Nearest name | Dusty Grape (#545775) |
| Black text | 2.91:1 |
| White text | 7.21:1 |
Values
| HEX | #51585F |
| RGB | rgb(81, 88, 95) |
| HSL | hsl(210, 8%, 35%) |
| OKLCH | oklch(45.7% 0.014 248.1) |
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 #51585F | 7.21:1 | AAA | Lc -90.0 | Fine for body text |
| Black text on #51585F | 2.91:1 | Fails | Lc 19.0 | Dividers and decoration only |
| #51585F text on white | 7.21:1 | AAA | Lc 85.1 | Fine for body text |
| #51585F text on black | 2.91:1 | Fails | Lc -16.9 | 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 800.
-
Step 50
50
#F5F5F6
oklch(97% 0.001 286.4)
-
Step 100
100
#E8EAEB
oklch(93.6% 0.003 228.8)
-
Step 200
200
#D7D9DC
oklch(88.5% 0.005 258.3)
-
Step 300
300
#BCC1C6
oklch(80.8% 0.009 247.9)
-
Step 400
400
#9AA1A9
oklch(70.6% 0.014 251.6)
-
Step 500
500
#828B94
oklch(63.2% 0.017 248.1)
-
Step 600
600
#6B757E
oklch(55.7% 0.018 245.3)
-
Step 700
700
#59626A
oklch(49.1% 0.017 245)
-
Step 800
800 (this color)
#51585F
oklch(45.7% 0.014 248.1)
-
Step 900
900
#3D4247
oklch(37.6% 0.011 248.1)
-
Step 950
950
#24272A
oklch(27.1% 0.007 248.1)
#51585F 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) | #55585F | 0.006 |
| Deuteranopia (no green cones) | #54565F | 0.007 |
| Tritanopia (no blue cones) | #4E5A5A | 0.013 |
| Achromatopsia (no color) | #575757 | 0.014 |
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 #51585F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusty Grape #545775 ΔE 0.038
- YInMn Blue #415A77 ΔE 0.042
- Slate #516572 ΔE 0.043
- Dusk #4E5481 ΔE 0.061
- Dark Slate Gray #2F4F4F ΔE 0.062
- Dim Gray #696969 ΔE 0.066
- Dark Green Blue #1F6357 ΔE 0.066
- Petrol #005F6A ΔE 0.067
Use #51585F 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.