#384574
Closest named color: Twilight Blue (#0A437A). oklch(40.2% 0.081 270.7), rgb(56, 69, 116).
Aa
White text reads best on this color (9.24:1).
About this color
#384574 is a dark, moderately saturated blue. In OKLCH its lightness is 40%, its chroma 0.081 and its hue 271°. Its hue sits on the cool side of the wheel. The nearest named color is Twilight Blue (#0A437A), ΔE 0.045 away. White text reads best on it, at 9.24:1.
| Hue family | Blues |
| Lightness | dark (40%) |
| Chroma | moderately saturated (0.081) |
| Temperature | cool |
| Nearest name | Twilight Blue (#0A437A) |
| Black text | 2.27:1 |
| White text | 9.24:1 |
Values
| HEX | #384574 |
| RGB | rgb(56, 69, 116) |
| HSL | hsl(227, 35%, 34%) |
| OKLCH | oklch(40.2% 0.081 270.7) |
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 #384574 | 9.24:1 | AAA | Lc -95.6 | Preferred for body text |
| Black text on #384574 | 2.27:1 | Fails | Lc 12.7 | Not readable |
| #384574 text on white | 9.24:1 | AAA | Lc 91.2 | Preferred for body text |
| #384574 text on black | 2.27:1 | Fails | Lc -11.1 | 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
#F4F5FA
oklch(97.1% 0.007 277.2)
-
Step 100
100
#E6EAF3
oklch(93.7% 0.013 266.7)
-
Step 200
200
#D2D9EB
oklch(88.5% 0.026 268.8)
-
Step 300
300
#B5C0E0
oklch(81% 0.047 270.4)
-
Step 400
400
#8F9FD1
oklch(70.8% 0.076 270.6)
-
Step 500
500
#7386C4
oklch(63% 0.096 270.5)
-
Step 600
600
#5C6FB1
oklch(55.6% 0.105 270.5)
-
Step 700
700
#4C5D98
oklch(49.2% 0.097 270.4)
-
Step 800
800 (this color)
#384574
oklch(40.2% 0.081 270.7)
-
Step 900
900
#353F63
oklch(37.6% 0.063 271.3)
-
Step 950
950
#1F253A
oklch(26.9% 0.04 271.3)
#384574 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) | #334A76 | 0.015 |
| Deuteranopia (no green cones) | #2D4573 | 0.015 |
| Tritanopia (no blue cones) | #1F4F57 | 0.072 |
| Achromatopsia (no color) | #474747 | 0.081 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #384574
#384574
oklch(40.2% 0.081 270.7)
- #594602
#594602
oklch(40.3% 0.081 90.7)
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 #384574, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight Blue #0A437A ΔE 0.045
- Light Navy #155084 ΔE 0.046
- Dark Grey Blue #29465B ΔE 0.050
- Cobalt #1E488F ΔE 0.051
- Dark Slate Blue #483D8B ΔE 0.053
- Dusk Blue #26538D ΔE 0.053
- Deep Sea Blue #015482 ΔE 0.055
- Dusk #4E5481 ΔE 0.059
Use #384574 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.