#323563
Closest named color: Prussian Blue (#1D3557). oklch(35% 0.079 278.6), rgb(50, 53, 99).
Aa
White text reads best on this color (11.50:1).
About this color
#323563 is a dark, moderately saturated blue. In OKLCH its lightness is 35%, its chroma 0.079 and its hue 279°. Its hue sits on the cool side of the wheel. The nearest named color is Prussian Blue (#1D3557), ΔE 0.037 away. White text reads best on it, at 11.50:1.
| Hue family | Blues |
| Lightness | dark (35%) |
| Chroma | moderately saturated (0.079) |
| Temperature | cool |
| Nearest name | Prussian Blue (#1D3557) |
| Black text | 1.82:1 |
| White text | 11.50:1 |
Values
| HEX | #323563 |
| RGB | rgb(50, 53, 99) |
| HSL | hsl(236, 33%, 29%) |
| OKLCH | oklch(35% 0.079 278.6) |
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 #323563 | 11.50:1 | AAA | Lc -100.1 | Preferred for body text |
| Black text on #323563 | 1.82:1 | Fails | Lc 7.5 | Not readable |
| #323563 text on white | 11.50:1 | AAA | Lc 96.4 | Preferred for body text |
| #323563 text on black | 1.82:1 | Fails | Lc 0.0 | 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
#E7E9F6
oklch(93.6% 0.018 279.1)
-
Step 200
200
#D4D7EF
oklch(88.4% 0.033 280)
-
Step 300
300
#B7BDE7
oklch(80.8% 0.06 278.6)
-
Step 400
400
#939BDB
oklch(70.8% 0.094 278.2)
-
Step 500
500
#7A81D2
oklch(63.2% 0.121 278.6)
-
Step 600
600
#6369BF
oklch(55.7% 0.132 278.2)
-
Step 700
700
#5357A5
oklch(49.2% 0.123 278.7)
-
Step 800
800
#444785
oklch(42.7% 0.101 279.1)
-
Step 900
900 (this color)
#323563
oklch(35% 0.079 278.6)
-
Step 950
950
#21233F
oklch(26.9% 0.052 279.2)
#323563 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) | #233B65 | 0.025 |
| Deuteranopia (no green cones) | #1F3762 | 0.026 |
| Tritanopia (no blue cones) | #213F47 | 0.070 |
| Achromatopsia (no color) | #393939 | 0.080 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #323563
#323563
oklch(35% 0.079 278.6)
- #443B00
#443B00
oklch(35.1% 0.073 99.7)
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 #323563, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Prussian Blue #1D3557 ΔE 0.037
- Marine Blue #01386A ΔE 0.048
- Dark Blue Grey #1F3B4D ΔE 0.054
- Dark Grey Blue #29465B ΔE 0.058
- Marine #042E60 ΔE 0.059
- Twilight Blue #0A437A ΔE 0.059
- Space Cadet #2B2D42 ΔE 0.061
- Gunmetal #293241 ΔE 0.063
Use #323563 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.