#323C85
Closest named color: Dark Slate Blue (#483D8B). oklch(39% 0.122 273.5), rgb(50, 60, 133).
Aa
White text reads best on this color (9.90:1).
About this color
#323C85 is a dark, moderately saturated blue. In OKLCH its lightness is 39%, its chroma 0.122 and its hue 274°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.036 away. White text reads best on it, at 9.90:1.
| Hue family | Blues |
| Lightness | dark (39%) |
| Chroma | moderately saturated (0.122) |
| Temperature | cool |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.12:1 |
| White text | 9.90:1 |
Values
| HEX | #323C85 |
| RGB | rgb(50, 60, 133) |
| HSL | hsl(233, 45%, 36%) |
| OKLCH | oklch(39% 0.122 273.5) |
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 #323C85 | 9.90:1 | AAA | Lc -96.9 | Preferred for body text |
| Black text on #323C85 | 2.12:1 | Fails | Lc 11.3 | Not readable |
| #323C85 text on white | 9.90:1 | AAA | Lc 92.7 | Preferred for body text |
| #323C85 text on black | 2.12:1 | Fails | Lc -9.8 | 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
#F3F5FE
oklch(97.1% 0.012 276.1)
-
Step 100
100
#E4E9FC
oklch(93.6% 0.026 274.1)
-
Step 200
200
#CED8FC
oklch(88.6% 0.051 273.1)
-
Step 300
300
#ADBDFC
oklch(80.9% 0.091 273.2)
-
Step 400
400
#8498FB
oklch(70.7% 0.146 273.5)
-
Step 500
500
#687BF8
oklch(63.2% 0.186 273.4)
-
Step 600
600
#5260E7
oklch(55.6% 0.202 273.4)
-
Step 700
700
#434EC9
oklch(49.1% 0.189 273.3)
-
Step 800
800
#3741A2
oklch(42.7% 0.155 273.4)
-
Step 900
900 (this color)
#323C85
oklch(39% 0.122 273.5)
-
Step 950
950
#1B224B
oklch(27% 0.076 273)
#323C85 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) | #0E4788 | 0.040 |
| Deuteranopia (no green cones) | #003F83 | 0.041 |
| Tritanopia (no blue cones) | #004D5A | 0.105 |
| Achromatopsia (no color) | #434343 | 0.122 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #323C85
#323C85
oklch(39% 0.122 273.5)
- #544400
#544400
oklch(39.2% 0.08 93.6)
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 #323C85, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.036
- Cobalt #1E488F ΔE 0.038
- Blueberry #464196 ΔE 0.044
- Twilight Blue #0A437A ΔE 0.044
- Light Navy #155084 ΔE 0.059
- Dusk Blue #26538D ΔE 0.063
- Sapphire #2138AB ΔE 0.066
- Marine Blue #01386A ΔE 0.068
Use #323C85 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.