#51474F
Closest named color: Charcoal Grey (#3C4142). oklch(41.1% 0.019 332.7), rgb(81, 71, 79).
Aa
White text reads best on this color (8.88:1).
About this color
#51474F is a dark close to neutral grey. In OKLCH its lightness is 41%, its chroma 0.019. It has too little chroma to lean warm or cool. The nearest named color is Charcoal Grey (#3C4142), ΔE 0.046 away. White text reads best on it, at 8.88:1.
| Hue family | Neutrals |
| Lightness | dark (41%) |
| Chroma | close to neutral grey (0.019) |
| Temperature | neutral |
| Nearest name | Charcoal Grey (#3C4142) |
| Black text | 2.36:1 |
| White text | 8.88:1 |
Values
| HEX | #51474F |
| RGB | rgb(81, 71, 79) |
| HSL | hsl(312, 7%, 30%) |
| OKLCH | oklch(41.1% 0.019 332.7) |
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 #51474F | 8.88:1 | AAA | Lc -94.8 | Preferred for body text |
| Black text on #51474F | 2.36:1 | Fails | Lc 13.6 | Not readable |
| #51474F text on white | 8.88:1 | AAA | Lc 90.4 | Preferred for body text |
| #51474F text on black | 2.36:1 | Fails | Lc -11.9 | 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
#EBE9EB
oklch(93.6% 0.003 325.6)
-
Step 200
200
#DCD8DB
oklch(88.6% 0.006 334)
-
Step 300
300
#C5BEC4
oklch(80.9% 0.011 330.2)
-
Step 400
400
#A89DA5
oklch(70.8% 0.017 335.2)
-
Step 500
500
#92858F
oklch(63.1% 0.021 333.7)
-
Step 600
600
#7C6E7A
oklch(55.5% 0.025 330.6)
-
Step 700
700
#695C66
oklch(49.1% 0.023 333.9)
-
Step 800
800 (this color)
#51474F
oklch(41.1% 0.019 332.7)
-
Step 900
900
#463F45
oklch(37.7% 0.014 330.5)
-
Step 950
950
#292528
oklch(27% 0.008 334.4)
#51474F 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) | #47494F | 0.017 |
| Deuteranopia (no green cones) | #494A4F | 0.016 |
| Tritanopia (no blue cones) | #52474A | 0.008 |
| Achromatopsia (no color) | #4A4A4A | 0.019 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #51474F
#51474F
oklch(41.1% 0.019 332.7)
- #434E46
#434E46
oklch(41.1% 0.019 153.9)
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 #51474F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Charcoal Grey #3C4142 ΔE 0.046
- Purple Brown #673A3F ΔE 0.052
- Dark Slate Gray #2F4F4F ΔE 0.053
- Dark Grey Blue #29465B ΔE 0.062
- Charcoal #264653 ΔE 0.063
- Brownish Purple #76424E ΔE 0.068
- Dusty Grape #545775 ΔE 0.069
- Onyx #343A40 ΔE 0.069
Use #51474F 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.