#424E48
Closest named color: Dark Slate Gray (#2F4F4F). oklch(41.1% 0.018 163.9), rgb(66, 78, 72).
Aa
White text reads best on this color (8.69:1).
About this color
#424E48 is a dark close to neutral grey. In OKLCH its lightness is 41%, its chroma 0.018. It has too little chroma to lean warm or cool. The nearest named color is Dark Slate Gray (#2F4F4F), ΔE 0.026 away. White text reads best on it, at 8.69:1.
| Hue family | Neutrals |
| Lightness | dark (41%) |
| Chroma | close to neutral grey (0.018) |
| Temperature | neutral |
| Nearest name | Dark Slate Gray (#2F4F4F) |
| Black text | 2.41:1 |
| White text | 8.69:1 |
Values
| HEX | #424E48 |
| RGB | rgb(66, 78, 72) |
| HSL | hsl(150, 8%, 28%) |
| OKLCH | oklch(41.1% 0.018 163.9) |
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 #424E48 | 8.69:1 | AAA | Lc -94.3 | Preferred for body text |
| Black text on #424E48 | 2.41:1 | Fails | Lc 14.1 | Not readable |
| #424E48 text on white | 8.69:1 | AAA | Lc 89.8 | Fine for body text |
| #424E48 text on black | 2.41:1 | Fails | Lc -12.4 | 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
#F4F6F5
oklch(97.1% 0.002 165.1)
-
Step 100
100
#E8EAE9
oklch(93.5% 0.003 165.1)
-
Step 200
200
#D6DAD8
oklch(88.5% 0.005 165)
-
Step 300
300
#BBC3BF
oklch(81% 0.01 164.8)
-
Step 400
400
#97A49E
oklch(70.7% 0.017 166.5)
-
Step 500
500
#7E8E86
oklch(63.1% 0.022 164.2)
-
Step 600
600
#677870
oklch(55.6% 0.024 165.5)
-
Step 700
700
#56655D
oklch(49.2% 0.022 162.2)
-
Step 800
800 (this color)
#424E48
oklch(41.1% 0.018 163.9)
-
Step 900
900
#3B443F
oklch(37.7% 0.015 161.4)
-
Step 950
950
#232825
oklch(27.1% 0.009 159.4)
#424E48 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) | #4E4C48 | 0.019 |
| Deuteranopia (no green cones) | #4B4B48 | 0.016 |
| Tritanopia (no blue cones) | #404E4C | 0.007 |
| Achromatopsia (no color) | #4B4B4B | 0.018 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #424E48
#424E48
oklch(41.1% 0.018 163.9)
- #52474D
#52474D
oklch(41.1% 0.018 343.9)
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 #424E48, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Gray #2F4F4F ΔE 0.026
- Charcoal Grey #3C4142 ΔE 0.043
- Charcoal #264653 ΔE 0.053
- Dark Blue Green #005249 ΔE 0.056
- Deep Teal #00555A ΔE 0.056
- Dark Grey Blue #29465B ΔE 0.058
- Dark Teal #014D4E ΔE 0.058
- Dark Green Blue #1F6357 ΔE 0.068
Use #424E48 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.