#323B62
Closest named color: Prussian Blue (#1D3557). oklch(36.4% 0.068 272.7), rgb(50, 59, 98).
Aa
White text reads best on this color (10.83:1).
About this color
#323B62 is a dark, muted blue. In OKLCH its lightness is 36%, its chroma 0.068 and its hue 273°. Its hue sits on the cool side of the wheel. The nearest named color is Prussian Blue (#1D3557), ΔE 0.040 away. White text reads best on it, at 10.83:1.
| Hue family | Blues |
| Lightness | dark (36%) |
| Chroma | muted (0.068) |
| Temperature | cool |
| Nearest name | Prussian Blue (#1D3557) |
| Black text | 1.93:1 |
| White text | 10.83:1 |
Values
| HEX | #323B62 |
| RGB | rgb(50, 59, 98) |
| HSL | hsl(229, 32%, 29%) |
| OKLCH | oklch(36.4% 0.068 272.7) |
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 #323B62 | 10.83:1 | AAA | Lc -98.9 | Preferred for body text |
| Black text on #323B62 | 1.93:1 | Fails | Lc 8.9 | Not readable |
| #323B62 text on white | 10.83:1 | AAA | Lc 95.0 | Preferred for body text |
| #323B62 text on black | 1.93:1 | Fails | Lc -7.6 | 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
#F4F5FA
oklch(97.1% 0.007 277.2)
-
Step 100
100
#E6E9F4
oklch(93.5% 0.015 273.8)
-
Step 200
200
#D2D8ED
oklch(88.4% 0.03 273.1)
-
Step 300
300
#B5BFE3
oklch(80.9% 0.052 273)
-
Step 400
400
#8F9ED4
oklch(70.8% 0.081 272.2)
-
Step 500
500
#7485C9
oklch(63.2% 0.105 272.4)
-
Step 600
600
#5D6DB6
oklch(55.5% 0.115 272.8)
-
Step 700
700
#4D5B9D
oklch(49.1% 0.107 272.9)
-
Step 800
800
#3F4B7F
oklch(42.8% 0.088 272.4)
-
Step 900
900 (this color)
#323B62
oklch(36.4% 0.068 272.7)
-
Step 950
950
#1F253C
oklch(27% 0.044 272.1)
#323B62 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) | #2D3F64 | 0.013 |
| Deuteranopia (no green cones) | #283B61 | 0.014 |
| Tritanopia (no blue cones) | #214349 | 0.062 |
| Achromatopsia (no color) | #3D3D3D | 0.069 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #323B62
#323B62
oklch(36.4% 0.068 272.7)
- #4B3D09
#4B3D09
oklch(36.5% 0.069 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 #323B62, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Prussian Blue #1D3557 ΔE 0.040
- Dark Grey Blue #29465B ΔE 0.041
- Dark Blue Grey #1F3B4D ΔE 0.047
- Marine Blue #01386A ΔE 0.050
- Charcoal #264653 ΔE 0.051
- Twilight Blue #0A437A ΔE 0.053
- Onyx #343A40 ΔE 0.060
- Midnight Green #073B4C ΔE 0.062
Use #323B62 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.