#384C88
Closest named color: Dusk Blue (#26538D). oklch(43.1% 0.102 268.1), rgb(56, 76, 136).
Aa
White text reads best on this color (8.21:1).
About this color
#384C88 is a dark, moderately saturated blue. In OKLCH its lightness is 43%, its chroma 0.102 and its hue 268°. Its hue sits on the cool side of the wheel. The nearest named color is Dusk Blue (#26538D), ΔE 0.025 away. White text reads best on it, at 8.21:1.
| Hue family | Blues |
| Lightness | dark (43%) |
| Chroma | moderately saturated (0.102) |
| Temperature | cool |
| Nearest name | Dusk Blue (#26538D) |
| Black text | 2.55:1 |
| White text | 8.21:1 |
Values
| HEX | #384C88 |
| RGB | rgb(56, 76, 136) |
| HSL | hsl(225, 42%, 38%) |
| OKLCH | oklch(43.1% 0.102 268.1) |
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 #384C88 | 8.21:1 | AAA | Lc -92.9 | Preferred for body text |
| Black text on #384C88 | 2.55:1 | Fails | Lc 15.8 | Dividers and decoration only |
| #384C88 text on white | 8.21:1 | AAA | Lc 88.2 | Fine for body text |
| #384C88 text on black | 2.55:1 | Fails | Lc -14.0 | 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 800.
-
Step 50
50
#F3F5FB
oklch(97% 0.008 271.3)
-
Step 100
100
#E5EAF6
oklch(93.7% 0.017 267.8)
-
Step 200
200
#D0D9F0
oklch(88.6% 0.033 268.7)
-
Step 300
300
#B0C0E8
oklch(80.9% 0.059 267.9)
-
Step 400
400
#879EDD
oklch(70.6% 0.096 268.5)
-
Step 500
500
#6A85D3
oklch(63% 0.122 268.3)
-
Step 600
600
#526EC1
oklch(55.7% 0.133 267.9)
-
Step 700
700
#435BA6
oklch(49% 0.123 268.3)
-
Step 800
800 (this color)
#384C88
oklch(43.1% 0.102 268.1)
-
Step 900
900
#2F3F6C
oklch(37.7% 0.08 267.7)
-
Step 950
950
#1C253F
oklch(27% 0.05 268.4)
#384C88 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) | #32538A | 0.020 |
| Deuteranopia (no green cones) | #274C87 | 0.019 |
| Tritanopia (no blue cones) | #005963 | 0.092 |
| Achromatopsia (no color) | #4F4F4F | 0.102 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #384C88
#384C88
oklch(43.1% 0.102 268.1)
- #644C00
#644C00
oklch(43% 0.088 87.7)
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 #384C88, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusk Blue #26538D ΔE 0.025
- Cobalt #1E488F ΔE 0.034
- Light Navy #155084 ΔE 0.034
- Twilight #4E518B ΔE 0.036
- Light Navy Blue #2E5A88 ΔE 0.041
- Blueberry #464196 ΔE 0.043
- Dusk #4E5481 ΔE 0.044
- Denim Blue #3B5B92 ΔE 0.044
Use #384C88 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.