#394147
Closest named color: Charcoal Grey (#3C4142). oklch(37% 0.015 240.3), rgb(57, 65, 71).
Aa
White text reads best on this color (10.39:1).
About this color
#394147 is a dark close to neutral grey. In OKLCH its lightness is 37%, its chroma 0.015. It has too little chroma to lean warm or cool. The nearest named color is Charcoal Grey (#3C4142), ΔE 0.009 away. White text reads best on it, at 10.39:1.
| Hue family | Neutrals |
| Lightness | dark (37%) |
| Chroma | close to neutral grey (0.015) |
| Temperature | neutral |
| Nearest name | Charcoal Grey (#3C4142) |
| Black text | 2.02:1 |
| White text | 10.39:1 |
Values
| HEX | #394147 |
| RGB | rgb(57, 65, 71) |
| HSL | hsl(206, 11%, 25%) |
| OKLCH | oklch(37% 0.015 240.3) |
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 #394147 | 10.39:1 | AAA | Lc -98.1 | Preferred for body text |
| Black text on #394147 | 2.02:1 | Fails | Lc 9.8 | Not readable |
| #394147 text on white | 10.39:1 | AAA | Lc 94.1 | Preferred for body text |
| #394147 text on black | 2.02:1 | Fails | Lc -8.4 | 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 900.
-
Step 50
50
#F4F5F6
oklch(97% 0.002 247.8)
-
Step 100
100
#E8EAEC
oklch(93.6% 0.003 247.9)
-
Step 200
200
#D6DADD
oklch(88.6% 0.006 239.8)
-
Step 300
300
#BAC2C7
oklch(80.9% 0.011 234.9)
-
Step 400
400
#97A2AB
oklch(70.6% 0.018 242.5)
-
Step 500
500
#7E8C96
oklch(63.2% 0.022 238.9)
-
Step 600
600
#677681
oklch(55.7% 0.025 239.8)
-
Step 700
700
#55636D
oklch(49.2% 0.024 239.1)
-
Step 800
800
#465159
oklch(42.8% 0.019 239.5)
-
Step 900
900 (this color)
#394147
oklch(37% 0.015 240.3)
-
Step 950
950
#22272B
oklch(26.9% 0.01 242.1)
#394147 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) | #3F4147 | 0.010 |
| Deuteranopia (no green cones) | #3D3F47 | 0.009 |
| Tritanopia (no blue cones) | #354243 | 0.011 |
| Achromatopsia (no color) | #404040 | 0.015 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
This color is close to neutral, so it has no meaningful hue to rotate. Hue harmonies are omitted.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #394147, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Charcoal Grey #3C4142 ΔE 0.009
- Onyx #343A40 ΔE 0.025
- Charcoal #264653 ΔE 0.030
- Dark Grey Blue #29465B ΔE 0.037
- Dark Slate Gray #2F4F4F ΔE 0.044
- Dark Blue Grey #1F3B4D ΔE 0.045
- Dark Teal #014D4E ΔE 0.056
- Gunmetal #293241 ΔE 0.057
Use #394147 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.