#384D51
Closest named color: Dark Slate Gray (#2F4F4F). oklch(40.4% 0.027 210.6), rgb(56, 77, 81).
Aa
White text reads best on this color (8.94:1).
About this color
#384D51 is a dark close to neutral grey. In OKLCH its lightness is 40%, its chroma 0.027. It has too little chroma to lean warm or cool. The nearest named color is Dark Slate Gray (#2F4F4F), ΔE 0.014 away. White text reads best on it, at 8.94:1.
| Hue family | Neutrals |
| Lightness | dark (40%) |
| Chroma | close to neutral grey (0.027) |
| Temperature | neutral |
| Nearest name | Dark Slate Gray (#2F4F4F) |
| Black text | 2.34:1 |
| White text | 8.94:1 |
Values
| HEX | #384D51 |
| RGB | rgb(56, 77, 81) |
| HSL | hsl(190, 18%, 27%) |
| OKLCH | oklch(40.4% 0.027 210.6) |
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 #384D51 | 8.94:1 | AAA | Lc -94.9 | Preferred for body text |
| Black text on #384D51 | 2.34:1 | Fails | Lc 13.5 | Not readable |
| #384D51 text on white | 8.94:1 | AAA | Lc 90.5 | Preferred for body text |
| #384D51 text on black | 2.34:1 | Fails | Lc -11.8 | 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 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
#D3DBDC
oklch(88.6% 0.009 205.9)
-
Step 300
300
#B6C4C6
oklch(81% 0.016 207.1)
-
Step 400
400
#8FA5A9
oklch(70.6% 0.025 209.8)
-
Step 500
500
#748F94
oklch(63.1% 0.031 210.1)
-
Step 600
600
#5C797F
oklch(55.6% 0.035 211.7)
-
Step 700
700
#4B666B
oklch(49.1% 0.033 210.2)
-
Step 800
800 (this color)
#384D51
oklch(40.4% 0.027 210.6)
-
Step 900
900
#354548
oklch(37.8% 0.021 210.3)
-
Step 950
950
#1F282A
oklch(26.9% 0.013 212.7)
#384D51 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) | #494B51 | 0.025 |
| Deuteranopia (no green cones) | #454851 | 0.024 |
| Tritanopia (no blue cones) | #304F4E | 0.014 |
| Achromatopsia (no color) | #494949 | 0.027 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #384D51
#384D51
oklch(40.4% 0.027 210.6)
- #574440
#574440
oklch(40.6% 0.027 32)
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 #384D51, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Gray #2F4F4F ΔE 0.014
- Charcoal #264653 ΔE 0.035
- Dark Grey Blue #29465B ΔE 0.038
- Charcoal Grey #3C4142 ΔE 0.039
- Deep Teal #00555A ΔE 0.044
- Dark Teal #014D4E ΔE 0.045
- Dark Blue Green #005249 ΔE 0.050
- Onyx #343A40 ΔE 0.062
Use #384D51 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.