#183452
Closest named color: Prussian Blue (#1D3557). oklch(31.9% 0.064 251.9), rgb(24, 52, 82).
Aa
White text reads best on this color (12.71:1).
About this color
#183452 is a dark, muted blue. In OKLCH its lightness is 32%, its chroma 0.064 and its hue 252°. Its hue sits on the cool side of the wheel. The nearest named color is Prussian Blue (#1D3557), ΔE 0.011 away. White text reads best on it, at 12.71:1.
| Hue family | Blues |
| Lightness | dark (32%) |
| Chroma | muted (0.064) |
| Temperature | cool |
| Nearest name | Prussian Blue (#1D3557) |
| Black text | 1.65:1 |
| White text | 12.71:1 |
Values
| HEX | #183452 |
| RGB | rgb(24, 52, 82) |
| HSL | hsl(211, 55%, 21%) |
| OKLCH | oklch(31.9% 0.064 251.9) |
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 #183452 | 12.71:1 | AAA | Lc -102.0 | Preferred for body text |
| Black text on #183452 | 1.65:1 | Fails | Lc 0.0 | Not readable |
| #183452 text on white | 12.71:1 | AAA | Lc 98.6 | Preferred for body text |
| #183452 text on black | 1.65:1 | Fails | Lc 0.0 | 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 950.
-
Step 50
50
#F1F6FC
oklch(97.1% 0.01 252.8)
-
Step 100
100
#E0EBF8
oklch(93.6% 0.021 252.5)
-
Step 200
200
#C6DCF5
oklch(88.6% 0.042 251.7)
-
Step 300
300
#9DC4F1
oklch(80.8% 0.076 252.3)
-
Step 400
400
#66A5EA
oklch(70.8% 0.121 251.9)
-
Step 500
500
#368CE3
oklch(63.1% 0.154 251.9)
-
Step 600
600
#0074D0
oklch(55.6% 0.166 251.9)
-
Step 700
700
#0061B0
oklch(49% 0.147 252)
-
Step 800
800
#005091
oklch(42.8% 0.126 251.5)
-
Step 900
900
#0E4375
oklch(37.8% 0.101 251.6)
-
Step 950
950 (this color)
#183452
oklch(31.9% 0.064 251.9)
#183452 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) | #273653 | 0.021 |
| Deuteranopia (no green cones) | #1F3051 | 0.014 |
| Tritanopia (no blue cones) | #003B3F | 0.050 |
| Achromatopsia (no color) | #333333 | 0.064 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #183452
#183452
oklch(31.9% 0.064 251.9)
- #462C05
#462C05
oklch(31.8% 0.064 71.7)
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 #183452, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Prussian Blue #1D3557 ΔE 0.011
- Dark Blue Grey #1F3B4D ΔE 0.029
- Midnight Green #073B4C ΔE 0.030
- Gunmetal #293241 ΔE 0.035
- Space Cadet #2B2D42 ΔE 0.038
- Marine #042E60 ΔE 0.038
- Marine Blue #01386A ΔE 0.043
- Oxford Blue #1B263B ΔE 0.055
Use #183452 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.