#394D4D
Closest named color: Dark Slate Gray (#2F4F4F). oklch(40.4% 0.025 196.2), rgb(57, 77, 77).
Aa
White text reads best on this color (8.96:1).
About this color
#394D4D is a dark close to neutral grey. In OKLCH its lightness is 40%, its chroma 0.025. It has too little chroma to lean warm or cool. The nearest named color is Dark Slate Gray (#2F4F4F), ΔE 0.013 away. White text reads best on it, at 8.96:1.
| Hue family | Neutrals |
| Lightness | dark (40%) |
| Chroma | close to neutral grey (0.025) |
| Temperature | neutral |
| Nearest name | Dark Slate Gray (#2F4F4F) |
| Black text | 2.34:1 |
| White text | 8.96:1 |
Values
| HEX | #394D4D |
| RGB | rgb(57, 77, 77) |
| HSL | hsl(180, 15%, 26%) |
| OKLCH | oklch(40.4% 0.025 196.2) |
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 #394D4D | 8.96:1 | AAA | Lc -95.0 | Preferred for body text |
| Black text on #394D4D | 2.34:1 | Fails | Lc 13.4 | Not readable |
| #394D4D text on white | 8.96:1 | AAA | Lc 90.6 | Preferred for body text |
| #394D4D text on black | 2.34:1 | Fails | Lc -11.7 | 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
#F4F6F6
oklch(97.2% 0.002 197.1)
-
Step 100
100
#E7EBEB
oklch(93.7% 0.004 197.1)
-
Step 200
200
#D3DBDB
oklch(88.5% 0.009 197)
-
Step 300
300
#B6C4C4
oklch(81% 0.015 196.9)
-
Step 400
400
#91A5A5
oklch(70.6% 0.022 196.7)
-
Step 500
500
#758F8F
oklch(63% 0.03 196.4)
-
Step 600
600
#5D7979
oklch(55.4% 0.032 196.3)
-
Step 700
700
#4D6666
oklch(49% 0.03 196.2)
-
Step 800
800 (this color)
#394D4D
oklch(40.4% 0.025 196.2)
-
Step 900
900
#364545
oklch(37.7% 0.019 196.4)
-
Step 950
950
#202828
oklch(26.9% 0.011 196.5)
#394D4D 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) | #4A4B4D | 0.025 |
| Deuteranopia (no green cones) | #46484D | 0.024 |
| Tritanopia (no blue cones) | #324E4D | 0.009 |
| Achromatopsia (no color) | #494949 | 0.025 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #394D4D
#394D4D
oklch(40.4% 0.025 196.2)
- #554344
#554344
oklch(40.2% 0.025 14.5)
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 #394D4D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Gray #2F4F4F ΔE 0.013
- Charcoal Grey #3C4142 ΔE 0.037
- Charcoal #264653 ΔE 0.038
- Dark Grey Blue #29465B ΔE 0.043
- Deep Teal #00555A ΔE 0.045
- Dark Teal #014D4E ΔE 0.046
- Dark Blue Green #005249 ΔE 0.048
- Onyx #343A40 ΔE 0.062
Use #394D4D 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.