#323D7D
Closest named color: Twilight Blue (#0A437A). oklch(38.6% 0.108 273), rgb(50, 61, 125).
Aa
White text reads best on this color (10.00:1).
About this color
#323D7D is a dark, moderately saturated blue. In OKLCH its lightness is 39%, its chroma 0.108 and its hue 273°. Its hue sits on the cool side of the wheel. The nearest named color is Twilight Blue (#0A437A), ΔE 0.038 away. White text reads best on it, at 10.00:1.
| Hue family | Blues |
| Lightness | dark (39%) |
| Chroma | moderately saturated (0.108) |
| Temperature | cool |
| Nearest name | Twilight Blue (#0A437A) |
| Black text | 2.09:1 |
| White text | 10.00:1 |
Values
| HEX | #323D7D |
| RGB | rgb(50, 61, 125) |
| HSL | hsl(231, 43%, 34%) |
| OKLCH | oklch(38.6% 0.108 273) |
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 #323D7D | 10.00:1 | AAA | Lc -97.1 | Preferred for body text |
| Black text on #323D7D | 2.09:1 | Fails | Lc 10.9 | Not readable |
| #323D7D text on white | 10.00:1 | AAA | Lc 93.0 | Preferred for body text |
| #323D7D text on black | 2.09:1 | Fails | Lc -9.5 | 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
#F3F5FD
oklch(97.1% 0.011 274.9)
-
Step 100
100
#E4E9FA
oklch(93.5% 0.024 272.8)
-
Step 200
200
#CFD8F8
oklch(88.5% 0.045 273)
-
Step 300
300
#AFBEF6
oklch(81% 0.081 272.8)
-
Step 400
400
#869AF1
oklch(70.7% 0.129 272.9)
-
Step 500
500
#6A7EEC
oklch(63.1% 0.165 273)
-
Step 600
600
#5364DB
oklch(55.5% 0.181 272.9)
-
Step 700
700
#4452BE
oklch(49% 0.169 272.9)
-
Step 800
800
#38449A
oklch(42.7% 0.14 273)
-
Step 900
900 (this color)
#323D7D
oklch(38.6% 0.108 273)
-
Step 950
950
#1C2348
oklch(27.1% 0.069 272.9)
#323D7D 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) | #1D467F | 0.031 |
| Deuteranopia (no green cones) | #103F7C | 0.034 |
| Tritanopia (no blue cones) | #004B57 | 0.095 |
| Achromatopsia (no color) | #424242 | 0.109 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #323D7D
#323D7D
oklch(38.6% 0.108 273)
- #534200
#534200
oklch(38.6% 0.079 92.2)
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 #323D7D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight Blue #0A437A ΔE 0.038
- Dark Slate Blue #483D8B ΔE 0.042
- Cobalt #1E488F ΔE 0.042
- Blueberry #464196 ΔE 0.053
- Light Navy #155084 ΔE 0.056
- Marine Blue #01386A ΔE 0.060
- Dusk Blue #26538D ΔE 0.064
- Deep Sea Blue #015482 ΔE 0.069
Use #323D7D 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.