#393B64
Closest named color: Dark Grey Blue (#29465B). oklch(37% 0.07 280.3), rgb(57, 59, 100).
Aa
White text reads best on this color (10.58:1).
About this color
#393B64 is a dark, muted purple. In OKLCH its lightness is 37%, its chroma 0.070 and its hue 280°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Grey Blue (#29465B), ΔE 0.045 away. White text reads best on it, at 10.58:1.
| Hue family | Purples |
| Lightness | dark (37%) |
| Chroma | muted (0.070) |
| Temperature | cool |
| Nearest name | Dark Grey Blue (#29465B) |
| Black text | 1.98:1 |
| White text | 10.58:1 |
Values
| HEX | #393B64 |
| RGB | rgb(57, 59, 100) |
| HSL | hsl(237, 27%, 31%) |
| OKLCH | oklch(37% 0.07 280.3) |
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 #393B64 | 10.58:1 | AAA | Lc -98.5 | Preferred for body text |
| Black text on #393B64 | 1.98:1 | Fails | Lc 9.4 | Not readable |
| #393B64 text on white | 10.58:1 | AAA | Lc 94.5 | Preferred for body text |
| #393B64 text on black | 1.98:1 | Fails | Lc -8.1 | 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
#F4F5FA
oklch(97.1% 0.007 277.2)
-
Step 100
100
#E8E9F4
oklch(93.6% 0.015 281.9)
-
Step 200
200
#D5D7ED
oklch(88.4% 0.03 281.6)
-
Step 300
300
#B9BDE3
oklch(80.8% 0.054 280.4)
-
Step 400
400
#969BD4
oklch(70.7% 0.083 280.1)
-
Step 500
500
#7D81C9
oklch(63% 0.108 280.4)
-
Step 600
600
#676AB6
oklch(55.6% 0.117 280.2)
-
Step 700
700
#56589C
oklch(49.1% 0.107 280.4)
-
Step 800
800
#46487F
oklch(42.7% 0.09 280.3)
-
Step 900
900 (this color)
#393B64
oklch(37% 0.07 280.3)
-
Step 950
950
#22243C
oklch(27.1% 0.045 279.3)
#393B64 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) | #2D4066 | 0.021 |
| Deuteranopia (no green cones) | #2A3D63 | 0.022 |
| Tritanopia (no blue cones) | #2C434A | 0.062 |
| Achromatopsia (no color) | #3F3F3F | 0.070 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #393B64
#393B64
oklch(37% 0.07 280.3)
- #48400B
#48400B
oklch(36.9% 0.07 100.3)
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 #393B64, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Grey Blue #29465B ΔE 0.045
- Prussian Blue #1D3557 ΔE 0.051
- Dark Blue Grey #1F3B4D ΔE 0.057
- Charcoal #264653 ΔE 0.057
- Twilight Blue #0A437A ΔE 0.058
- Marine Blue #01386A ΔE 0.060
- Onyx #343A40 ΔE 0.064
- Charcoal Grey #3C4142 ΔE 0.068
Use #393B64 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.