#384666
Closest named color: Dark Grey Blue (#29465B). oklch(39.7% 0.057 265.7), rgb(56, 70, 102).
Aa
White text reads best on this color (9.39:1).
About this color
#384666 is a dark, muted blue. In OKLCH its lightness is 40%, its chroma 0.057 and its hue 266°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Grey Blue (#29465B), ΔE 0.029 away. White text reads best on it, at 9.39:1.
| Hue family | Blues |
| Lightness | dark (40%) |
| Chroma | muted (0.057) |
| Temperature | cool |
| Nearest name | Dark Grey Blue (#29465B) |
| Black text | 2.23:1 |
| White text | 9.39:1 |
Values
| HEX | #384666 |
| RGB | rgb(56, 70, 102) |
| HSL | hsl(222, 29%, 31%) |
| OKLCH | oklch(39.7% 0.057 265.7) |
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 #384666 | 9.39:1 | AAA | Lc -96.0 | Preferred for body text |
| Black text on #384666 | 2.23:1 | Fails | Lc 12.3 | Not readable |
| #384666 text on white | 9.39:1 | AAA | Lc 91.7 | Preferred for body text |
| #384666 text on black | 2.23:1 | Fails | Lc -10.7 | 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
#F3F5F9
oklch(97% 0.006 264.5)
-
Step 100
100
#E6EAF2
oklch(93.6% 0.012 264.5)
-
Step 200
200
#D2D9EA
oklch(88.5% 0.025 267.9)
-
Step 300
300
#B3C1DD
oklch(80.9% 0.043 264.3)
-
Step 400
400
#8CA0CC
oklch(70.6% 0.069 265.6)
-
Step 500
500
#7088BF
oklch(63% 0.088 265.8)
-
Step 600
600
#5871AC
oklch(55.5% 0.097 265.9)
-
Step 700
700
#485F93
oklch(49.1% 0.088 265.2)
-
Step 800
800
#3C4E78
oklch(42.8% 0.074 265.7)
-
Step 900
900 (this color)
#384666
oklch(39.7% 0.057 265.7)
-
Step 950
950
#1E2638
oklch(27% 0.036 265.6)
#384666 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) | #3B4967 | 0.011 |
| Deuteranopia (no green cones) | #364465 | 0.007 |
| Tritanopia (no blue cones) | #284D51 | 0.053 |
| Achromatopsia (no color) | #464646 | 0.057 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #384666
#384666
oklch(39.7% 0.057 265.7)
- #554420
#554420
oklch(39.6% 0.057 84.4)
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 #384666, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Grey Blue #29465B ΔE 0.029
- Charcoal #264653 ΔE 0.042
- Twilight Blue #0A437A ΔE 0.056
- Dark Slate Gray #2F4F4F ΔE 0.057
- Light Navy #155084 ΔE 0.058
- Charcoal Grey #3C4142 ΔE 0.060
- Deep Sea Blue #015482 ΔE 0.063
- Dark Blue Grey #1F3B4D ΔE 0.064
Use #384666 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.