#3F463C
Closest named color: Charcoal Grey (#3C4142). oklch(38.4% 0.019 136.2), rgb(63, 70, 60).
Aa
White text reads best on this color (9.75:1).
About this color
#3F463C is a dark close to neutral grey. In OKLCH its lightness is 38%, its chroma 0.019. It has too little chroma to lean warm or cool. The nearest named color is Charcoal Grey (#3C4142), ΔE 0.023 away. White text reads best on it, at 9.75:1.
| Hue family | Neutrals |
| Lightness | dark (38%) |
| Chroma | close to neutral grey (0.019) |
| Temperature | neutral |
| Nearest name | Charcoal Grey (#3C4142) |
| Black text | 2.15:1 |
| White text | 9.75:1 |
Values
| HEX | #3F463C |
| RGB | rgb(63, 70, 60) |
| HSL | hsl(102, 8%, 25%) |
| OKLCH | oklch(38.4% 0.019 136.2) |
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 #3F463C | 9.75:1 | AAA | Lc -96.8 | Preferred for body text |
| Black text on #3F463C | 2.15:1 | Fails | Lc 11.3 | Not readable |
| #3F463C text on white | 9.75:1 | AAA | Lc 92.6 | Preferred for body text |
| #3F463C text on black | 2.15:1 | Fails | Lc -9.8 | 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 900.
-
Step 50
50
#F5F6F4
oklch(97.2% 0.003 128.5)
-
Step 100
100
#E8EAE8
oklch(93.5% 0.003 145.5)
-
Step 200
200
#D7DAD5
oklch(88.5% 0.007 132.4)
-
Step 300
300
#BCC3BA
oklch(80.9% 0.015 138.7)
-
Step 400
400
#9AA496
oklch(70.7% 0.023 136.6)
-
Step 500
500
#828E7C
oklch(63.2% 0.03 135.1)
-
Step 600
600
#6B7866
oklch(55.6% 0.031 137)
-
Step 700
700
#596554
oklch(49.1% 0.03 136.5)
-
Step 800
800
#495245
oklch(42.6% 0.024 136)
-
Step 900
900 (this color)
#3F463C
oklch(38.4% 0.019 136.2)
-
Step 950
950
#242822
oklch(27.1% 0.012 135.1)
#3F463C 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) | #47443B | 0.014 |
| Deuteranopia (no green cones) | #46443C | 0.013 |
| Tritanopia (no blue cones) | #3F4543 | 0.013 |
| Achromatopsia (no color) | #444444 | 0.019 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3F463C
#3F463C
oklch(38.4% 0.019 136.2)
- #48414A
#48414A
oklch(38.6% 0.018 318.7)
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 #3F463C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Charcoal Grey #3C4142 ΔE 0.023
- Dark Slate Gray #2F4F4F ΔE 0.037
- Onyx #343A40 ΔE 0.048
- Charcoal #264653 ΔE 0.049
- Dark Teal #014D4E ΔE 0.058
- Dark Grey Blue #29465B ΔE 0.058
- Dark Blue Green #005249 ΔE 0.060
- Deep Teal #00555A ΔE 0.069
Use #3F463C 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.