#323A5D
Closest named color: Prussian Blue (#1D3557). oklch(35.8% 0.062 273.1), rgb(50, 58, 93).
Aa
White text reads best on this color (11.05:1).
About this color
#323A5D is a dark, muted blue. In OKLCH its lightness is 36%, its chroma 0.062 and its hue 273°. Its hue sits on the cool side of the wheel. The nearest named color is Prussian Blue (#1D3557), ΔE 0.036 away. White text reads best on it, at 11.05:1.
| Hue family | Blues |
| Lightness | dark (36%) |
| Chroma | muted (0.062) |
| Temperature | cool |
| Nearest name | Prussian Blue (#1D3557) |
| Black text | 1.89:1 |
| White text | 11.05:1 |
Values
| HEX | #323A5D |
| RGB | rgb(50, 58, 93) |
| HSL | hsl(229, 30%, 28%) |
| OKLCH | oklch(35.8% 0.062 273.1) |
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 #323A5D | 11.05:1 | AAA | Lc -99.3 | Preferred for body text |
| Black text on #323A5D | 1.89:1 | Fails | Lc 8.4 | Not readable |
| #323A5D text on white | 11.05:1 | AAA | Lc 95.5 | Preferred for body text |
| #323A5D text on black | 1.89:1 | 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
#F4F5FA
oklch(97.1% 0.007 277.2)
-
Step 100
100
#E7E9F3
oklch(93.5% 0.014 277.1)
-
Step 200
200
#D3D8EB
oklch(88.4% 0.027 274.1)
-
Step 300
300
#B6BFDF
oklch(80.8% 0.046 272.9)
-
Step 400
400
#919ECF
oklch(70.7% 0.073 272.9)
-
Step 500
500
#7785C3
oklch(63.1% 0.095 273.7)
-
Step 600
600
#606EAF
oklch(55.6% 0.102 273.4)
-
Step 700
700
#4F5C97
oklch(49.1% 0.096 273)
-
Step 800
800
#414B7A
oklch(42.6% 0.079 273.5)
-
Step 900
900 (this color)
#323A5D
oklch(35.8% 0.062 273.1)
-
Step 950
950
#20253A
oklch(27% 0.04 273.2)
#323A5D 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) | #2E3E5E | 0.013 |
| Deuteranopia (no green cones) | #2A3A5C | 0.012 |
| Tritanopia (no blue cones) | #244147 | 0.054 |
| Achromatopsia (no color) | #3C3C3C | 0.062 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #323A5D
#323A5D
oklch(35.8% 0.062 273.1)
- #483C11
#483C11
oklch(35.9% 0.062 93.3)
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 #323A5D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Prussian Blue #1D3557 ΔE 0.036
- Dark Grey Blue #29465B ΔE 0.040
- Dark Blue Grey #1F3B4D ΔE 0.040
- Charcoal #264653 ΔE 0.048
- Onyx #343A40 ΔE 0.052
- Marine Blue #01386A ΔE 0.052
- Gunmetal #293241 ΔE 0.054
- Midnight Green #073B4C ΔE 0.056
Use #323A5D 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.