#183252
Closest named color: Prussian Blue (#1D3557). oklch(31.4% 0.066 254.7), rgb(24, 50, 82).
Aa
White text reads best on this color (12.98:1).
About this color
#183252 is a dark, muted blue. In OKLCH its lightness is 31%, its chroma 0.066 and its hue 255°. Its hue sits on the cool side of the wheel. The nearest named color is Prussian Blue (#1D3557), ΔE 0.014 away. White text reads best on it, at 12.98:1.
| Hue family | Blues |
| Lightness | dark (31%) |
| Chroma | muted (0.066) |
| Temperature | cool |
| Nearest name | Prussian Blue (#1D3557) |
| Black text | 1.61:1 |
| White text | 12.98:1 |
Values
| HEX | #183252 |
| RGB | rgb(24, 50, 82) |
| HSL | hsl(213, 55%, 21%) |
| OKLCH | oklch(31.4% 0.066 254.7) |
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 #183252 | 12.98:1 | AAA | Lc -102.3 | Preferred for body text |
| Black text on #183252 | 1.61:1 | Fails | Lc 0.0 | Not readable |
| #183252 text on white | 12.98:1 | AAA | Lc 99.0 | Preferred for body text |
| #183252 text on black | 1.61:1 | 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
#F1F6FD
oklch(97.1% 0.011 256.7)
-
Step 100
100
#E0EBF9
oklch(93.6% 0.022 254.4)
-
Step 200
200
#C6DBF6
oklch(88.4% 0.044 254.8)
-
Step 300
300
#9FC4F3
oklch(81% 0.078 254.6)
-
Step 400
400
#68A3ED
oklch(70.6% 0.125 254.8)
-
Step 500
500
#3C8AE7
oklch(63.1% 0.16 254.8)
-
Step 600
600
#1072D5
oklch(55.6% 0.173 254.5)
-
Step 700
700
#005FB8
oklch(49.1% 0.16 254.6)
-
Step 800
800
#074E96
oklch(42.8% 0.134 254.6)
-
Step 900
900
#134177
oklch(37.6% 0.104 255.1)
-
Step 950
950 (this color)
#183252
oklch(31.4% 0.066 254.7)
#183252 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) | #243453 | 0.017 |
| Deuteranopia (no green cones) | #1C2F51 | 0.010 |
| Tritanopia (no blue cones) | #00393E | 0.052 |
| Achromatopsia (no color) | #313131 | 0.066 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #183252
#183252
oklch(31.4% 0.066 254.7)
- #452B00
#452B00
oklch(31.3% 0.067 73.7)
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 #183252, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Prussian Blue #1D3557 ΔE 0.014
- Marine #042E60 ΔE 0.034
- Dark Blue Grey #1F3B4D ΔE 0.035
- Midnight Green #073B4C ΔE 0.035
- Space Cadet #2B2D42 ΔE 0.037
- Gunmetal #293241 ΔE 0.037
- Marine Blue #01386A ΔE 0.044
- Oxford Blue #1B263B ΔE 0.051
Use #183252 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.