#323F9C
Closest named color: Blueberry (#464196). oklch(41.5% 0.151 272), rgb(50, 63, 156).
Aa
White text reads best on this color (9.02:1).
About this color
#323F9C is a dark, vivid blue. In OKLCH its lightness is 42%, its chroma 0.151 and its hue 272°. Its hue sits on the cool side of the wheel. The nearest named color is Blueberry (#464196), ΔE 0.032 away. White text reads best on it, at 9.02:1.
| Hue family | Blues |
| Lightness | dark (42%) |
| Chroma | vivid (0.151) |
| Temperature | cool |
| Nearest name | Blueberry (#464196) |
| Black text | 2.32:1 |
| White text | 9.02:1 |
Values
| HEX | #323F9C |
| RGB | rgb(50, 63, 156) |
| HSL | hsl(233, 51%, 40%) |
| OKLCH | oklch(41.5% 0.151 272) |
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 #323F9C | 9.02:1 | AAA | Lc -94.7 | Preferred for body text |
| Black text on #323F9C | 2.32:1 | Fails | Lc 13.7 | Not readable |
| #323F9C text on white | 9.02:1 | AAA | Lc 90.3 | Preferred for body text |
| #323F9C text on black | 2.32:1 | Fails | Lc -12.0 | 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 800.
-
Step 50
50
#F2F5FE
oklch(97% 0.012 271.3)
-
Step 100
100
#E4E9FC
oklch(93.6% 0.026 274.1)
-
Step 200
200
#CDD8FA
oklch(88.5% 0.048 271.2)
-
Step 300
300
#ACBEFA
oklch(80.9% 0.087 271.4)
-
Step 400
400
#8299F8
oklch(70.6% 0.141 272.1)
-
Step 500
500
#657DF5
oklch(63.2% 0.18 271.8)
-
Step 600
600
#4F62E4
oklch(55.6% 0.197 272.1)
-
Step 700
700
#4150C6
oklch(49.1% 0.183 272.3)
-
Step 800
800 (this color)
#323F9C
oklch(41.5% 0.151 272)
-
Step 900
900
#2D397F
oklch(37.6% 0.118 272.1)
-
Step 950
950
#1A224A
oklch(26.9% 0.075 272)
#323F9C 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) | #004E9F | 0.046 |
| Deuteranopia (no green cones) | #00449A | 0.037 |
| Tritanopia (no blue cones) | #005667 | 0.124 |
| Achromatopsia (no color) | #494949 | 0.151 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #323F9C
#323F9C
oklch(41.5% 0.151 272)
- #5C4A00
#5C4A00
oklch(41.6% 0.085 92.8)
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 #323F9C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blueberry #464196 ΔE 0.032
- Sapphire #2138AB ΔE 0.037
- Cobalt #1E488F ΔE 0.037
- Dark Slate Blue #483D8B ΔE 0.042
- Dusk Blue #26538D ΔE 0.062
- Light Navy #155084 ΔE 0.068
- Twilight Blue #0A437A ΔE 0.069
- Blue Blue #2242C7 ΔE 0.071
Use #323F9C 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.