#51545D
Closest named color: Dusty Grape (#545775). oklch(44.6% 0.015 271.1), rgb(81, 84, 93).
Aa
White text reads best on this color (7.56:1).
About this color
#51545D is a 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 0.039 away. White text reads best on it, at 7.56:1.
| Hue family | Neutrals |
| Lightness | dark (45%) |
| Chroma | close to neutral grey (0.015) |
| Temperature | neutral |
| Nearest name | Dusty Grape (#545775) |
| Black text | 2.77:1 |
| White text | 7.56:1 |
Values
| HEX | #51545D |
| RGB | rgb(81, 84, 93) |
| HSL | hsl(225, 7%, 34%) |
| OKLCH | oklch(44.6% 0.015 271.1) |
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 #51545D | 7.56:1 | AAA | Lc -91.1 | Preferred for body text |
| Black text on #51545D | 2.77:1 | Fails | Lc 17.7 | Dividers and decoration only |
| #51545D text on white | 7.56:1 | AAA | Lc 86.3 | Fine for body text |
| #51545D text on black | 2.77:1 | Fails | Lc -15.8 | 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
#D8D9DC
oklch(88.5% 0.004 271.4)
-
Step 300
300
#BEC0C6
oklch(80.8% 0.009 271.3)
-
Step 400
400
#9DA0AA
oklch(70.6% 0.015 272.6)
-
Step 500
500
#858995
oklch(63.1% 0.019 271.1)
-
Step 600
600
#6F737F
oklch(55.6% 0.019 271.1)
-
Step 700
700
#5D606B
oklch(49% 0.018 273.6)
-
Step 800
800 (this color)
#51545D
oklch(44.6% 0.015 271.1)
-
Step 900
900
#3F4148
oklch(37.6% 0.012 273.1)
-
Step 950
950
#25262A
oklch(26.9% 0.008 274.7)
#51545D 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) | #52555D | 0.004 |
| Deuteranopia (no green cones) | #51545D | 0.000 |
| Tritanopia (no blue cones) | #4E5657 | 0.014 |
| Achromatopsia (no color) | #545454 | 0.015 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #51545D
#51545D
oklch(44.6% 0.015 271.1)
- #57544B
#57544B
oklch(44.6% 0.015 91.7)
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 #51545D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusty Grape #545775 ΔE 0.039
- YInMn Blue #415A77 ΔE 0.044
- Slate #516572 ΔE 0.053
- Dark Slate Gray #2F4F4F ΔE 0.057
- Dusk #4E5481 ΔE 0.060
- Petrol #005F6A ΔE 0.071
- Dark Green Blue #1F6357 ΔE 0.073
- Deep Teal #00555A ΔE 0.076
Use #51545D 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.