#323D6D
Closest named color: Twilight Blue (#0A437A). oklch(37.5% 0.083 272.1), rgb(50, 61, 109).
Aa
White text reads best on this color (10.37:1).
About this color
#323D6D is a dark, moderately saturated blue. In OKLCH its lightness is 38%, its chroma 0.083 and its hue 272°. Its hue sits on the cool side of the wheel. The nearest named color is Twilight Blue (#0A437A), ΔE 0.041 away. White text reads best on it, at 10.37:1.
| Hue family | Blues |
| Lightness | dark (38%) |
| Chroma | moderately saturated (0.083) |
| Temperature | cool |
| Nearest name | Twilight Blue (#0A437A) |
| Black text | 2.02:1 |
| White text | 10.37:1 |
Values
| HEX | #323D6D |
| RGB | rgb(50, 61, 109) |
| HSL | hsl(229, 37%, 31%) |
| OKLCH | oklch(37.5% 0.083 272.1) |
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 #323D6D | 10.37:1 | AAA | Lc -98.0 | Preferred for body text |
| Black text on #323D6D | 2.02:1 | Fails | Lc 10.0 | Not readable |
| #323D6D text on white | 10.37:1 | AAA | Lc 94.0 | Preferred for body text |
| #323D6D text on black | 2.02:1 | Fails | Lc -8.6 | 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
#E5E9F6
oklch(93.5% 0.018 272.3)
-
Step 200
200
#D1D8F1
oklch(88.5% 0.035 273.2)
-
Step 300
300
#B2BFEA
oklch(80.9% 0.063 271.8)
-
Step 400
400
#8B9DDF
oklch(70.8% 0.099 272)
-
Step 500
500
#6F83D6
oklch(63.1% 0.127 272.1)
-
Step 600
600
#586BC4
oklch(55.6% 0.139 272.1)
-
Step 700
700
#4859A9
oklch(49.1% 0.129 271.9)
-
Step 800
800
#3B4989
oklch(42.7% 0.107 271.9)
-
Step 900
900 (this color)
#323D6D
oklch(37.5% 0.083 272.1)
-
Step 950
950
#1E2440
oklch(27% 0.053 273.2)
#323D6D 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) | #29436F | 0.020 |
| Deuteranopia (no green cones) | #233E6C | 0.019 |
| Tritanopia (no blue cones) | #18474F | 0.074 |
| Achromatopsia (no color) | #404040 | 0.083 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #323D6D
#323D6D
oklch(37.5% 0.083 272.1)
- #503F00
#503F00
oklch(37.5% 0.077 91.5)
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 #323D6D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight Blue #0A437A ΔE 0.041
- Dark Grey Blue #29465B ΔE 0.048
- Marine Blue #01386A ΔE 0.051
- Prussian Blue #1D3557 ΔE 0.054
- Charcoal #264653 ΔE 0.062
- Cobalt #1E488F ΔE 0.062
- Dark Slate Blue #483D8B ΔE 0.062
- Dark Blue Grey #1F3B4D ΔE 0.063
Use #323D6D 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.