#383D6E
Closest named color: Twilight Blue (#0A437A). oklch(38% 0.083 277.3), rgb(56, 61, 110).
Aa
White text reads best on this color (10.19:1).
About this color
#383D6E is a dark, moderately saturated blue. In OKLCH its lightness is 38%, its chroma 0.083 and its hue 277°. Its hue sits on the cool side of the wheel. The nearest named color is Twilight Blue (#0A437A), ΔE 0.048 away. White text reads best on it, at 10.19:1.
| Hue family | Blues |
| Lightness | dark (38%) |
| Chroma | moderately saturated (0.083) |
| Temperature | cool |
| Nearest name | Twilight Blue (#0A437A) |
| Black text | 2.06:1 |
| White text | 10.19:1 |
Values
| HEX | #383D6E |
| RGB | rgb(56, 61, 110) |
| HSL | hsl(234, 33%, 33%) |
| OKLCH | oklch(38% 0.083 277.3) |
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 #383D6E | 10.19:1 | AAA | Lc -97.6 | Preferred for body text |
| Black text on #383D6E | 2.06:1 | Fails | Lc 10.4 | Not readable |
| #383D6E text on white | 10.19:1 | AAA | Lc 93.5 | Preferred for body text |
| #383D6E text on black | 2.06:1 | Fails | Lc -9.0 | 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
#F4F5FB
oklch(97.1% 0.008 278.6)
-
Step 100
100
#E6E9F6
oklch(93.6% 0.018 275.6)
-
Step 200
200
#D3D8F1
oklch(88.6% 0.035 276.7)
-
Step 300
300
#B6BEE9
oklch(81% 0.061 276.7)
-
Step 400
400
#919BDF
oklch(70.8% 0.1 277.1)
-
Step 500
500
#7780D5
oklch(63% 0.128 277.5)
-
Step 600
600
#6168C3
oklch(55.6% 0.139 277.5)
-
Step 700
700
#5056A8
oklch(49% 0.129 277.3)
-
Step 800
800
#424788
oklch(42.7% 0.106 277.6)
-
Step 900
900 (this color)
#383D6E
oklch(38% 0.083 277.3)
-
Step 950
950
#202340
oklch(26.9% 0.054 277.6)
#383D6E 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) | #2A4370 | 0.024 |
| Deuteranopia (no green cones) | #263F6D | 0.024 |
| Tritanopia (no blue cones) | #254750 | 0.072 |
| Achromatopsia (no color) | #414141 | 0.083 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #383D6E
#383D6E
oklch(38% 0.083 277.3)
- #4E4200
#4E4200
oklch(38% 0.078 97.4)
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 #383D6E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight Blue #0A437A ΔE 0.048
- Dark Grey Blue #29465B ΔE 0.052
- Dark Slate Blue #483D8B ΔE 0.056
- Marine Blue #01386A ΔE 0.060
- Prussian Blue #1D3557 ΔE 0.061
- Cobalt #1E488F ΔE 0.063
- Light Navy #155084 ΔE 0.065
- Charcoal #264653 ΔE 0.065
Use #383D6E 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.