#383A45
Closest named color: Onyx (#343A40). oklch(35.1% 0.019 277.2), rgb(56, 58, 69).
Aa
White text reads best on this color (11.29:1).
About this color
#383A45 is a dark close to neutral grey. In OKLCH its lightness is 35%, its chroma 0.019. It has too little chroma to lean warm or cool. The nearest named color is Onyx (#343A40), ΔE 0.012 away. White text reads best on it, at 11.29:1.
| Hue family | Neutrals |
| Lightness | dark (35%) |
| Chroma | close to neutral grey (0.019) |
| Temperature | neutral |
| Nearest name | Onyx (#343A40) |
| Black text | 1.85:1 |
| White text | 11.29:1 |
Values
| HEX | #383A45 |
| RGB | rgb(56, 58, 69) |
| HSL | hsl(231, 10%, 25%) |
| OKLCH | oklch(35.1% 0.019 277.2) |
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 #383A45 | 11.29:1 | AAA | Lc -99.8 | Preferred for body text |
| Black text on #383A45 | 1.85:1 | Fails | Lc 7.8 | Not readable |
| #383A45 text on white | 11.29:1 | AAA | Lc 96.1 | Preferred for body text |
| #383A45 text on black | 1.85:1 | 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 900.
-
Step 50
50
#F5F5F7
oklch(97.1% 0.003 286.4)
-
Step 100
100
#E9EAED
oklch(93.7% 0.004 271.4)
-
Step 200
200
#D7D9DE
oklch(88.5% 0.007 268.5)
-
Step 300
300
#BEC0CA
oklch(80.9% 0.014 277)
-
Step 400
400
#9DA0AF
oklch(70.8% 0.022 276.8)
-
Step 500
500
#85889C
oklch(63.1% 0.03 278.7)
-
Step 600
600
#6E7286
oklch(55.6% 0.031 276.4)
-
Step 700
700
#5C5F72
oklch(49% 0.031 278.1)
-
Step 800
800
#4B4E5D
oklch(42.7% 0.025 276.4)
-
Step 900
900 (this color)
#383A45
oklch(35.1% 0.019 277.2)
-
Step 950
950
#25262D
oklch(27.1% 0.013 279.1)
#383A45 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) | #373B46 | 0.003 |
| Deuteranopia (no green cones) | #363A45 | 0.003 |
| Tritanopia (no blue cones) | #353C3E | 0.017 |
| Achromatopsia (no color) | #3A3A3A | 0.019 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #383A45
#383A45
oklch(35.1% 0.019 277.2)
- #3D3B30
#3D3B30
oklch(35.1% 0.019 98.7)
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 #383A45, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Onyx #343A40 ΔE 0.012
- Charcoal Grey #3C4142 ΔE 0.027
- Dark Blue Grey #1F3B4D ΔE 0.036
- Gunmetal #293241 ΔE 0.038
- Charcoal #264653 ΔE 0.043
- Dark Grey Blue #29465B ΔE 0.047
- Space Cadet #2B2D42 ΔE 0.050
- Midnight Green #073B4C ΔE 0.054
Use #383A45 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.