#393B63
Closest named color: Dark Grey Blue (#29465B). oklch(37% 0.068 280.3), rgb(57, 59, 99).
Aa
White text reads best on this color (10.60:1).
About this color
#393B63 is a dark, muted purple. In OKLCH its lightness is 37%, its chroma 0.068 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 10.60:1.
| Hue family | Purples |
| Lightness | dark (37%) |
| Chroma | muted (0.068) |
| Temperature | cool |
| Nearest name | Dark Grey Blue (#29465B) |
| Black text | 1.97:1 |
| White text | 10.60:1 |
Values
| HEX | #393B63 |
| RGB | rgb(57, 59, 99) |
| HSL | hsl(237, 27%, 31%) |
| OKLCH | oklch(37% 0.068 280.3) |
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 #393B63 | 10.60:1 | AAA | Lc -98.5 | Preferred for body text |
| Black text on #393B63 | 1.97:1 | Fails | Lc 9.4 | Not readable |
| #393B63 text on white | 10.60:1 | AAA | Lc 94.5 | Preferred for body text |
| #393B63 text on black | 1.97:1 | Fails | Lc -8.0 | 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
#F4F5FA
oklch(97.1% 0.007 277.2)
-
Step 100
100
#E8E9F4
oklch(93.6% 0.015 281.9)
-
Step 200
200
#D5D7EC
oklch(88.4% 0.029 281.5)
-
Step 300
300
#BABEE2
oklch(81% 0.051 280.2)
-
Step 400
400
#969BD3
oklch(70.6% 0.082 280.1)
-
Step 500
500
#7E82C8
oklch(63.2% 0.105 280.4)
-
Step 600
600
#676AB4
oklch(55.5% 0.114 280.2)
-
Step 700
700
#56589B
oklch(49% 0.106 280.4)
-
Step 800
800
#46487E
oklch(42.6% 0.089 280.3)
-
Step 900
900 (this color)
#393B63
oklch(37% 0.068 280.3)
-
Step 950
950
#22243B
oklch(27% 0.043 279.3)
#393B63 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) | #2D4065 | 0.021 |
| Deuteranopia (no green cones) | #2B3D62 | 0.021 |
| Tritanopia (no blue cones) | #2C434A | 0.060 |
| Achromatopsia (no color) | #3F3F3F | 0.068 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #393B63
#393B63
oklch(37% 0.068 280.3)
- #48400E
#48400E
oklch(36.9% 0.068 99.9)
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 #393B63, 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 0.050
- Dark Blue Grey #1F3B4D ΔE 0.055
- Charcoal #264653 ΔE 0.056
- Twilight Blue #0A437A ΔE 0.058
- Marine Blue #01386A ΔE 0.060
- Onyx #343A40 ΔE 0.063
- Charcoal Grey #3C4142 ΔE 0.066
Use #393B63 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.