#364571
Closest named color: Dark Grey Blue (#29465B). oklch(39.9% 0.077 268.5), rgb(54, 69, 113).
Aa
White text reads best on this color (9.34:1).
About this color
#364571 is a dark, moderately saturated blue. In OKLCH its lightness is 40%, its chroma 0.077 and its hue 269°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Grey Blue (#29465B), ΔE 0.044 away. White text reads best on it, at 9.34:1.
| Hue family | Blues |
| Lightness | dark (40%) |
| Chroma | moderately saturated (0.077) |
| Temperature | cool |
| Nearest name | Dark Grey Blue (#29465B) |
| Black text | 2.24:1 |
| White text | 9.34:1 |
Values
| HEX | #364571 |
| RGB | rgb(54, 69, 113) |
| HSL | hsl(225, 35%, 33%) |
| OKLCH | oklch(39.9% 0.077 268.5) |
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 #364571 | 9.34:1 | AAA | Lc -95.8 | Preferred for body text |
| Black text on #364571 | 2.24:1 | Fails | Lc 12.5 | Not readable |
| #364571 text on white | 9.34:1 | AAA | Lc 91.5 | Preferred for body text |
| #364571 text on black | 2.24:1 | Fails | Lc -10.9 | 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
#F3F5FB
oklch(97% 0.008 271.3)
-
Step 100
100
#E5EAF5
oklch(93.6% 0.016 266.3)
-
Step 200
200
#D0D9EF
oklch(88.5% 0.032 268)
-
Step 300
300
#B1C0E7
oklch(80.9% 0.058 268.6)
-
Step 400
400
#889EDB
oklch(70.6% 0.093 268.7)
-
Step 500
500
#6B85D1
oklch(63% 0.119 268.5)
-
Step 600
600
#546EBE
oklch(55.6% 0.128 268.5)
-
Step 700
700
#445BA4
oklch(49% 0.12 268.5)
-
Step 800
800
#384B85
oklch(42.7% 0.099 268.3)
-
Step 900
900 (this color)
#364571
oklch(39.9% 0.077 268.5)
-
Step 950
950
#1C253E
oklch(26.9% 0.049 268)
#364571 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) | #344973 | 0.012 |
| Deuteranopia (no green cones) | #2E4470 | 0.012 |
| Tritanopia (no blue cones) | #1D4E55 | 0.069 |
| Achromatopsia (no color) | #474747 | 0.077 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #364571
#364571
oklch(39.9% 0.077 268.5)
- #584508
#584508
oklch(40% 0.077 89.6)
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 #364571, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Grey Blue #29465B ΔE 0.044
- Twilight Blue #0A437A ΔE 0.044
- Light Navy #155084 ΔE 0.046
- Cobalt #1E488F ΔE 0.054
- Deep Sea Blue #015482 ΔE 0.055
- Dusk Blue #26538D ΔE 0.056
- Dark Slate Blue #483D8B ΔE 0.058
- Charcoal #264653 ΔE 0.059
Use #364571 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.