#323B91
Closest named color: Blueberry (#464196). oklch(39.8% 0.141 273.6), rgb(50, 59, 145).
Aa
White text reads best on this color (9.67:1).
About this color
#323B91 is a dark, vivid blue. In OKLCH its lightness is 40%, its chroma 0.141 and its hue 274°. Its hue sits on the cool side of the wheel. The nearest named color is Blueberry (#464196), ΔE 0.036 away. White text reads best on it, at 9.67:1.
| Hue family | Blues |
| Lightness | dark (40%) |
| Chroma | vivid (0.141) |
| Temperature | cool |
| Nearest name | Blueberry (#464196) |
| Black text | 2.17:1 |
| White text | 9.67:1 |
Values
| HEX | #323B91 |
| RGB | rgb(50, 59, 145) |
| HSL | hsl(234, 49%, 38%) |
| OKLCH | oklch(39.8% 0.141 273.6) |
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 #323B91 | 9.67:1 | AAA | Lc -96.3 | Preferred for body text |
| Black text on #323B91 | 2.17:1 | Fails | Lc 11.9 | Not readable |
| #323B91 text on white | 9.67:1 | AAA | Lc 92.0 | Preferred for body text |
| #323B91 text on black | 2.17:1 | Fails | Lc -10.4 | 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
#F2F5FF
oklch(97.1% 0.014 272.7)
-
Step 100
100
#E3E9FF
oklch(93.6% 0.03 273.6)
-
Step 200
200
#CDD7FF
oklch(88.4% 0.056 274.2)
-
Step 300
300
#ADBDFF
oklch(81% 0.095 273.6)
-
Step 400
400
#8397FF
oklch(70.7% 0.153 273.6)
-
Step 500
500
#6779FF
oklch(63.2% 0.198 273.6)
-
Step 600
600
#5058F9
oklch(55.7% 0.235 273.6)
-
Step 700
700
#4246D9
oklch(49.1% 0.218 273.7)
-
Step 800
800
#353BAF
oklch(42.6% 0.181 273.5)
-
Step 900
900 (this color)
#323B91
oklch(39.8% 0.141 273.6)
-
Step 950
950
#1A2051
oklch(27% 0.089 273.6)
#323B91 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) | #004994 | 0.047 |
| Deuteranopia (no green cones) | #00408F | 0.040 |
| Tritanopia (no blue cones) | #005060 | 0.117 |
| Achromatopsia (no color) | #444444 | 0.141 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #323B91
#323B91
oklch(39.8% 0.141 273.6)
- #564600
#564600
oklch(39.9% 0.082 94)
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 #323B91, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blueberry #464196 ΔE 0.036
- Dark Slate Blue #483D8B ΔE 0.037
- Cobalt #1E488F ΔE 0.038
- Sapphire #2138AB ΔE 0.048
- Twilight Blue #0A437A ΔE 0.058
- Dusk Blue #26538D ΔE 0.066
- Light Navy #155084 ΔE 0.066
- Indigo Blue #3A18B1 ΔE 0.077
Use #323B91 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.