#383D47
Closest named color: Onyx (#343A40). oklch(35.9% 0.019 264.3), rgb(56, 61, 71).
Aa
White text reads best on this color (10.89:1).
About this color
#383D47 is a dark close to neutral grey. In OKLCH its lightness is 36%, its chroma 0.019. It has too little chroma to lean warm or cool. The nearest named color is Onyx (#343A40), ΔE 0.016 away. White text reads best on it, at 10.89:1.
| Hue family | Neutrals |
| Lightness | dark (36%) |
| Chroma | close to neutral grey (0.019) |
| Temperature | neutral |
| Nearest name | Onyx (#343A40) |
| Black text | 1.92:1 |
| White text | 10.89:1 |
Values
| HEX | #383D47 |
| RGB | rgb(56, 61, 71) |
| HSL | hsl(220, 12%, 25%) |
| OKLCH | oklch(35.9% 0.019 264.3) |
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 #383D47 | 10.89:1 | AAA | Lc -99.1 | Preferred for body text |
| Black text on #383D47 | 1.92:1 | Fails | Lc 8.6 | Not readable |
| #383D47 text on white | 10.89:1 | AAA | Lc 95.3 | Preferred for body text |
| #383D47 text on black | 1.92:1 | Fails | Lc -7.4 | 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
#F5F5F7
oklch(97.1% 0.003 286.4)
-
Step 100
100
#E8EAED
oklch(93.6% 0.005 258.3)
-
Step 200
200
#D6D9DE
oklch(88.4% 0.008 260.7)
-
Step 300
300
#BCC1CA
oklch(81% 0.014 262.4)
-
Step 400
400
#9AA1AF
oklch(70.8% 0.022 264.4)
-
Step 500
500
#818A9B
oklch(63.2% 0.028 263.3)
-
Step 600
600
#6A7386
oklch(55.5% 0.031 265.3)
-
Step 700
700
#586172
oklch(49.1% 0.03 263.2)
-
Step 800
800
#484F5C
oklch(42.6% 0.023 262.9)
-
Step 900
900 (this color)
#383D47
oklch(35.9% 0.019 264.3)
-
Step 950
950
#24262C
oklch(26.9% 0.012 271)
#383D47 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) | #3A3E47 | 0.005 |
| Deuteranopia (no green cones) | #393C47 | 0.003 |
| Tritanopia (no blue cones) | #343F40 | 0.017 |
| Achromatopsia (no color) | #3D3D3D | 0.019 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #383D47
#383D47
oklch(35.9% 0.019 264.3)
- #423C32
#423C32
oklch(35.9% 0.019 80.5)
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 #383D47, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Onyx #343A40 ΔE 0.016
- Charcoal Grey #3C4142 ΔE 0.019
- Charcoal #264653 ΔE 0.035
- Dark Blue Grey #1F3B4D ΔE 0.037
- Dark Grey Blue #29465B ΔE 0.040
- Gunmetal #293241 ΔE 0.045
- Midnight Green #073B4C ΔE 0.055
- Dark Slate Gray #2F4F4F ΔE 0.056
Use #383D47 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.