#183248
Closest named color: Gunmetal (#293241). oklch(30.8% 0.051 246), rgb(24, 50, 72).
Aa
White text reads best on this color (13.21:1).
About this color
#183248 is a dark, muted blue. In OKLCH its lightness is 31%, its chroma 0.051 and its hue 246°. Its hue sits on the cool side of the wheel. The nearest named color is Gunmetal (#293241), ΔE 0.025 away. White text reads best on it, at 13.21:1.
| Hue family | Blues |
| Lightness | dark (31%) |
| Chroma | muted (0.051) |
| Temperature | cool |
| Nearest name | Gunmetal (#293241) |
| Black text | 1.58:1 |
| White text | 13.21:1 |
Values
| HEX | #183248 |
| RGB | rgb(24, 50, 72) |
| HSL | hsl(208, 50%, 19%) |
| OKLCH | oklch(30.8% 0.051 246) |
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 #183248 | 13.21:1 | AAA | Lc -102.7 | Preferred for body text |
| Black text on #183248 | 1.58:1 | Fails | Lc 0.0 | Not readable |
| #183248 text on white | 13.21:1 | AAA | Lc 99.4 | Preferred for body text |
| #183248 text on black | 1.58:1 | 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
#F1F6FB
oklch(97.1% 0.009 247.9)
-
Step 100
100
#E1EBF5
oklch(93.5% 0.017 248)
-
Step 200
200
#C8DCEF
oklch(88.5% 0.034 246.8)
-
Step 300
300
#A1C5E6
oklch(80.8% 0.061 246.3)
-
Step 400
400
#6CA7DA
oklch(70.8% 0.097 245.8)
-
Step 500
500
#408FD0
oklch(63% 0.125 246.4)
-
Step 600
600
#1778BD
oklch(55.5% 0.135 246.4)
-
Step 700
700
#0365A3
oklch(49.1% 0.126 246.1)
-
Step 800
800
#0C5384
oklch(42.8% 0.104 245.8)
-
Step 900
900
#15456A
oklch(37.8% 0.081 245.9)
-
Step 950
950 (this color)
#183248
oklch(30.8% 0.051 246)
#183248 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) | #283349 | 0.022 |
| Deuteranopia (no green cones) | #222E48 | 0.017 |
| Tritanopia (no blue cones) | #00373A | 0.040 |
| Achromatopsia (no color) | #303030 | 0.051 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #183248
#183248
oklch(30.8% 0.051 246)
- #412A11
#412A11
oklch(30.7% 0.051 66.1)
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 #183248, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Gunmetal #293241 ΔE 0.025
- Prussian Blue #1D3557 ΔE 0.028
- Space Cadet #2B2D42 ΔE 0.029
- Midnight Green #073B4C ΔE 0.030
- Dark Blue Grey #1F3B4D ΔE 0.032
- Oxford Blue #1B263B ΔE 0.042
- Marine #042E60 ΔE 0.050
- Onyx #343A40 ΔE 0.053
Use #183248 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.