#384FA0
Closest named color: Dusk Blue (#26538D). oklch(45.4% 0.134 268.7), rgb(56, 79, 160).
Aa
White text reads best on this color (7.51:1).
About this color
#384FA0 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 45%, its chroma 0.134 and its hue 269°. Its hue sits on the cool side of the wheel. The nearest named color is Dusk Blue (#26538D), ΔE 0.039 away. White text reads best on it, at 7.51:1.
| Hue family | Blues |
| Lightness | medium-dark (45%) |
| Chroma | moderately saturated (0.134) |
| Temperature | cool |
| Nearest name | Dusk Blue (#26538D) |
| Black text | 2.79:1 |
| White text | 7.51:1 |
Values
| HEX | #384FA0 |
| RGB | rgb(56, 79, 160) |
| HSL | hsl(227, 48%, 42%) |
| OKLCH | oklch(45.4% 0.134 268.7) |
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 #384FA0 | 7.51:1 | AAA | Lc -90.7 | Preferred for body text |
| Black text on #384FA0 | 2.79:1 | Fails | Lc 18.2 | Dividers and decoration only |
| #384FA0 text on white | 7.51:1 | AAA | Lc 85.8 | Fine for body text |
| #384FA0 text on black | 2.79:1 | Fails | Lc -16.2 | Dividers and decoration only |
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 800.
-
Step 50
50
#F2F5FD
oklch(97% 0.011 269.6)
-
Step 100
100
#E3EAFA
oklch(93.6% 0.023 266.9)
-
Step 200
200
#CDD9F7
oklch(88.6% 0.043 268.2)
-
Step 300
300
#ABBFF4
oklch(80.8% 0.078 268.5)
-
Step 400
400
#809CEF
oklch(70.6% 0.126 268.9)
-
Step 500
500
#6281E9
oklch(63% 0.16 269)
-
Step 600
600
#4A68D8
oklch(55.6% 0.175 268.8)
-
Step 700
700
#3C56BB
oklch(49.1% 0.162 268.8)
-
Step 800
800 (this color)
#384FA0
oklch(45.4% 0.134 268.7)
-
Step 900
900
#2B3C78
oklch(37.6% 0.104 269)
-
Step 950
950
#192446
oklch(27% 0.065 268.3)
#384FA0 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) | #2259A3 | 0.031 |
| Deuteranopia (no green cones) | #06509E | 0.037 |
| Tritanopia (no blue cones) | #006270 | 0.113 |
| Achromatopsia (no color) | #545454 | 0.134 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #384FA0
#384FA0
oklch(45.4% 0.134 268.7)
- #6B5300
#6B5300
oklch(45.4% 0.093 89.3)
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 #384FA0, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusk Blue #26538D ΔE 0.039
- Blueberry #464196 ΔE 0.040
- Denim Blue #3B5B92 ΔE 0.044
- Cobalt #1E488F ΔE 0.045
- Twilight #4E518B ΔE 0.046
- Light Navy Blue #2E5A88 ΔE 0.055
- Dark Slate Blue #483D8B ΔE 0.057
- Dusky Blue #475F94 ΔE 0.057
Use #384FA0 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.