#384A51
Closest named color: Dark Slate Gray (#2F4F4F). oklch(39.7% 0.026 223.7), rgb(56, 74, 81).
Aa
White text reads best on this color (9.26:1).
About this color
#384A51 is a dark close to neutral grey. In OKLCH its lightness is 40%, its chroma 0.026. It has too little chroma to lean warm or cool. The nearest named color is Dark Slate Gray (#2F4F4F), ΔE 0.020 away. White text reads best on it, at 9.26:1.
| Hue family | Neutrals |
| Lightness | dark (40%) |
| Chroma | close to neutral grey (0.026) |
| Temperature | neutral |
| Nearest name | Dark Slate Gray (#2F4F4F) |
| Black text | 2.26:1 |
| White text | 9.26:1 |
Values
| HEX | #384A51 |
| RGB | rgb(56, 74, 81) |
| HSL | hsl(197, 18%, 27%) |
| OKLCH | oklch(39.7% 0.026 223.7) |
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 #384A51 | 9.26:1 | AAA | Lc -95.7 | Preferred for body text |
| Black text on #384A51 | 2.26:1 | Fails | Lc 12.6 | Not readable |
| #384A51 text on white | 9.26:1 | AAA | Lc 91.4 | Preferred for body text |
| #384A51 text on black | 2.26:1 | Fails | Lc -11.0 | 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
#F4F6F7
oklch(97.2% 0.003 228.8)
-
Step 100
100
#E6EBEC
oklch(93.7% 0.006 211)
-
Step 200
200
#D2DBDE
oklch(88.5% 0.011 219.6)
-
Step 300
300
#B4C4CA
oklch(81% 0.019 222.2)
-
Step 400
400
#8DA5AF
oklch(70.7% 0.031 224.9)
-
Step 500
500
#708F9B
oklch(63.1% 0.039 223.5)
-
Step 600
600
#587986
oklch(55.6% 0.043 224.2)
-
Step 700
700
#486671
oklch(49.1% 0.039 222.7)
-
Step 800
800
#3B535C
oklch(42.6% 0.033 223.1)
-
Step 900
900 (this color)
#384A51
oklch(39.7% 0.026 223.7)
-
Step 950
950
#1E282C
oklch(26.9% 0.016 224.2)
#384A51 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) | #464951 | 0.021 |
| Deuteranopia (no green cones) | #424651 | 0.019 |
| Tritanopia (no blue cones) | #304C4C | 0.016 |
| Achromatopsia (no color) | #474747 | 0.026 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #384A51
#384A51
oklch(39.7% 0.026 223.7)
- #53433C
#53433C
oklch(39.7% 0.025 44.9)
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 #384A51, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Gray #2F4F4F ΔE 0.020
- Charcoal #264653 ΔE 0.028
- Dark Grey Blue #29465B ΔE 0.031
- Charcoal Grey #3C4142 ΔE 0.032
- Dark Teal #014D4E ΔE 0.046
- Deep Teal #00555A ΔE 0.049
- Onyx #343A40 ΔE 0.053
- Dark Blue Green #005249 ΔE 0.054
Use #384A51 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.