#383137
Closest named color: Onyx (#343A40). oklch(32.3% 0.014 330.6), rgb(56, 49, 55).
Aa
White text reads best on this color (12.63:1).
About this color
#383137 is a dark close to neutral grey. In OKLCH its lightness is 32%, its chroma 0.014. It has too little chroma to lean warm or cool. The nearest named color is Onyx (#343A40), ΔE 0.029 away. White text reads best on it, at 12.63:1.
| Hue family | Neutrals |
| Lightness | dark (32%) |
| Chroma | close to neutral grey (0.014) |
| Temperature | neutral |
| Nearest name | Onyx (#343A40) |
| Black text | 1.66:1 |
| White text | 12.63:1 |
Values
| HEX | #383137 |
| RGB | rgb(56, 49, 55) |
| HSL | hsl(309, 7%, 21%) |
| OKLCH | oklch(32.3% 0.014 330.6) |
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 #383137 | 12.63:1 | AAA | Lc -102.0 | Preferred for body text |
| Black text on #383137 | 1.66:1 | Fails | Lc 0.0 | Not readable |
| #383137 text on white | 12.63:1 | AAA | Lc 98.7 | Preferred for body text |
| #383137 text on black | 1.66:1 | Fails | Lc 0.0 | 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 950.
-
Step 50
50
#F6F5F6
oklch(97.1% 0.002 325.6)
-
Step 100
100
#ECE9EB
oklch(93.7% 0.004 337.4)
-
Step 200
200
#DDD7DC
oklch(88.5% 0.009 331)
-
Step 300
300
#C7BDC6
oklch(80.9% 0.017 328.8)
-
Step 400
400
#AB9BA9
oklch(70.8% 0.027 329.9)
-
Step 500
500
#968293
oklch(63% 0.034 330.9)
-
Step 600
600
#816C7E
oklch(55.7% 0.037 330.8)
-
Step 700
700
#6D5A6A
oklch(49.2% 0.035 331.4)
-
Step 800
800
#594956
oklch(42.6% 0.03 332.5)
-
Step 900
900
#493D47
oklch(37.6% 0.023 331.6)
-
Step 950
950 (this color)
#383137
oklch(32.3% 0.014 330.6)
#383137 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) | #313237 | 0.012 |
| Deuteranopia (no green cones) | #323337 | 0.012 |
| Tritanopia (no blue cones) | #393133 | 0.007 |
| Achromatopsia (no color) | #333333 | 0.014 |
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 #383137, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Onyx #343A40 ΔE 0.029
- Gunmetal #293241 ΔE 0.029
- Space Cadet #2B2D42 ΔE 0.036
- Charcoal Grey #3C4142 ΔE 0.052
- Dark Blue Grey #1F3B4D ΔE 0.052
- Jet #212529 ΔE 0.063
- Midnight Green #073B4C ΔE 0.064
- Prussian Blue #1D3557 ΔE 0.065
Use #383137 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.