#393C67
Closest named color: Dark Grey Blue (#29465B). oklch(37.5% 0.073 279.2), rgb(57, 60, 103).
Aa
White text reads best on this color (10.41:1).
About this color
#393C67 is a dark, moderately saturated blue. In OKLCH its lightness is 37%, its chroma 0.073 and its hue 279°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Grey Blue (#29465B), ΔE 0.046 away. White text reads best on it, at 10.41:1.
| Hue family | Blues |
| Lightness | dark (37%) |
| Chroma | moderately saturated (0.073) |
| Temperature | cool |
| Nearest name | Dark Grey Blue (#29465B) |
| Black text | 2.01:1 |
| White text | 10.41:1 |
Values
| HEX | #393C67 |
| RGB | rgb(57, 60, 103) |
| HSL | hsl(236, 29%, 31%) |
| OKLCH | oklch(37.5% 0.073 279.2) |
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 #393C67 | 10.41:1 | AAA | Lc -98.1 | Preferred for body text |
| Black text on #393C67 | 2.01:1 | Fails | Lc 9.8 | Not readable |
| #393C67 text on white | 10.41:1 | AAA | Lc 94.1 | Preferred for body text |
| #393C67 text on black | 2.01:1 | Fails | Lc -8.5 | 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
#E7E9F5
oklch(93.6% 0.016 278.5)
-
Step 200
200
#D4D8EE
oklch(88.6% 0.03 277.6)
-
Step 300
300
#B8BEE4
oklch(80.9% 0.054 278.1)
-
Step 400
400
#959BD7
oklch(70.7% 0.088 279.5)
-
Step 500
500
#7B81CC
oklch(63% 0.112 279.2)
-
Step 600
600
#656AB9
oklch(55.7% 0.121 278.9)
-
Step 700
700
#54589F
oklch(49.1% 0.112 279)
-
Step 800
800
#454881
oklch(42.7% 0.094 279.4)
-
Step 900
900 (this color)
#393C67
oklch(37.5% 0.073 279.2)
-
Step 950
950
#22243D
oklch(27.1% 0.046 279.3)
#393C67 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) | #2D4269 | 0.023 |
| Deuteranopia (no green cones) | #2A3E66 | 0.022 |
| Tritanopia (no blue cones) | #2B454C | 0.065 |
| Achromatopsia (no color) | #404040 | 0.073 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #393C67
#393C67
oklch(37.5% 0.073 279.2)
- #4B4107
#4B4107
oklch(37.5% 0.073 98.6)
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 #393C67, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Grey Blue #29465B ΔE 0.046
- Twilight Blue #0A437A ΔE 0.054
- Prussian Blue #1D3557 ΔE 0.054
- Charcoal #264653 ΔE 0.058
- Marine Blue #01386A ΔE 0.060
- Dark Blue Grey #1F3B4D ΔE 0.060
- Dark Slate Blue #483D8B ΔE 0.066
- Onyx #343A40 ΔE 0.069
Use #393C67 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.