#51575F
Closest named color: Dusty Grape (#545775). oklch(45.4% 0.015 255.6), rgb(81, 87, 95).
Aa
White text reads best on this color (7.29:1).
About this color
#51575F is a medium-dark close to neutral grey. In OKLCH its lightness is 45%, its chroma 0.015. It has too little chroma to lean warm or cool. The nearest named color is Dusty Grape (#545775), ΔE 0.037 away. White text reads best on it, at 7.29:1.
| Hue family | Neutrals |
| Lightness | medium-dark (45%) |
| Chroma | close to neutral grey (0.015) |
| Temperature | neutral |
| Nearest name | Dusty Grape (#545775) |
| Black text | 2.87:1 |
| White text | 7.29:1 |
Values
| HEX | #51575F |
| RGB | rgb(81, 87, 95) |
| HSL | hsl(214, 8%, 35%) |
| OKLCH | oklch(45.4% 0.015 255.6) |
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 #51575F | 7.29:1 | AAA | Lc -90.2 | Preferred for body text |
| Black text on #51575F | 2.87:1 | Fails | Lc 18.7 | Dividers and decoration only |
| #51575F text on white | 7.29:1 | AAA | Lc 85.4 | Fine for body text |
| #51575F text on black | 2.87:1 | Fails | Lc -16.7 | 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
#E9EAEB
oklch(93.7% 0.002 247.8)
-
Step 200
200
#D7D9DC
oklch(88.5% 0.005 258.3)
-
Step 300
300
#BDC1C6
oklch(80.9% 0.008 253.9)
-
Step 400
400
#9BA1AA
oklch(70.7% 0.015 258.4)
-
Step 500
500
#828A95
oklch(63% 0.019 256.3)
-
Step 600
600
#6C747F
oklch(55.6% 0.02 256.3)
-
Step 700
700
#5A616B
oklch(49% 0.018 257.2)
-
Step 800
800 (this color)
#51575F
oklch(45.4% 0.015 255.6)
-
Step 900
900
#3D4248
oklch(37.7% 0.012 253)
-
Step 950
950
#24272A
oklch(27.1% 0.007 248.1)
#51575F 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) | #54575F | 0.005 |
| Deuteranopia (no green cones) | #53565F | 0.004 |
| Tritanopia (no blue cones) | #4E5959 | 0.014 |
| Achromatopsia (no color) | #565656 | 0.015 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #51575F
#51575F
oklch(45.4% 0.015 255.6)
- #5B554D
#5B554D
oklch(45.3% 0.015 75.2)
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 #51575F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusty Grape #545775 ΔE 0.037
- YInMn Blue #415A77 ΔE 0.042
- Slate #516572 ΔE 0.045
- Dusk #4E5481 ΔE 0.060
- Dark Slate Gray #2F4F4F ΔE 0.061
- Petrol #005F6A ΔE 0.068
- Dim Gray #696969 ΔE 0.068
- Dark Green Blue #1F6357 ΔE 0.068
Use #51575F 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.