#323E57
Closest named color: Dark Grey Blue (#29465B). oklch(36.4% 0.046 264.4), rgb(50, 62, 87).
Aa
White text reads best on this color (10.70:1).
About this color
#323E57 is a dark, muted blue. In OKLCH its lightness is 36%, its chroma 0.046 and its hue 264°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Grey Blue (#29465B), ΔE 0.026 away. White text reads best on it, at 10.70:1.
| Hue family | Blues |
| Lightness | dark (36%) |
| Chroma | muted (0.046) |
| Temperature | cool |
| Nearest name | Dark Grey Blue (#29465B) |
| Black text | 1.96:1 |
| White text | 10.70:1 |
Values
| HEX | #323E57 |
| RGB | rgb(50, 62, 87) |
| HSL | hsl(221, 27%, 27%) |
| OKLCH | oklch(36.4% 0.046 264.4) |
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 #323E57 | 10.70:1 | AAA | Lc -98.7 | Preferred for body text |
| Black text on #323E57 | 1.96:1 | Fails | Lc 9.1 | Not readable |
| #323E57 text on white | 10.70:1 | AAA | Lc 94.8 | Preferred for body text |
| #323E57 text on black | 1.96:1 | Fails | Lc -7.8 | 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
#F4F5F9
oklch(97.1% 0.005 275)
-
Step 100
100
#E6EAF1
oklch(93.6% 0.01 261.8)
-
Step 200
200
#D3D9E6
oklch(88.5% 0.019 266)
-
Step 300
300
#B5C1D8
oklch(80.9% 0.035 263.5)
-
Step 400
400
#8FA1C4
oklch(70.7% 0.055 263.6)
-
Step 500
500
#7489B5
oklch(63.1% 0.071 264.7)
-
Step 600
600
#5D73A1
oklch(55.7% 0.077 264.4)
-
Step 700
700
#4C608A
oklch(49.1% 0.072 264.4)
-
Step 800
800
#3F4E70
oklch(42.6% 0.06 265.7)
-
Step 900
900 (this color)
#323E57
oklch(36.4% 0.046 264.4)
-
Step 950
950
#1F2635
oklch(26.9% 0.03 265.1)
#323E57 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) | #354058 | 0.008 |
| Deuteranopia (no green cones) | #323C56 | 0.006 |
| Tritanopia (no blue cones) | #264347 | 0.041 |
| Achromatopsia (no color) | #3E3E3E | 0.046 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #323E57
#323E57
oklch(36.4% 0.046 264.4)
- #4A3C21
#4A3C21
oklch(36.4% 0.046 82.8)
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 #323E57, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Grey Blue #29465B ΔE 0.026
- Charcoal #264653 ΔE 0.032
- Dark Blue Grey #1F3B4D ΔE 0.033
- Onyx #343A40 ΔE 0.039
- Charcoal Grey #3C4142 ΔE 0.043
- Prussian Blue #1D3557 ΔE 0.043
- Midnight Green #073B4C ΔE 0.051
- Gunmetal #293241 ΔE 0.052
Use #323E57 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.