#182E6C
Closest named color: Marine (#042E60). oklch(32.4% 0.112 265.7), rgb(24, 46, 108).
Aa
White text reads best on this color (12.75:1).
About this color
#182E6C is a dark, moderately saturated blue. In OKLCH its lightness is 32%, its chroma 0.112 and its hue 266°. Its hue sits on the cool side of the wheel. The nearest named color is Marine (#042E60), ΔE 0.027 away. White text reads best on it, at 12.75:1.
| Hue family | Blues |
| Lightness | dark (32%) |
| Chroma | moderately saturated (0.112) |
| Temperature | cool |
| Nearest name | Marine (#042E60) |
| Black text | 1.64:1 |
| White text | 12.75:1 |
Values
| HEX | #182E6C |
| RGB | rgb(24, 46, 108) |
| HSL | hsl(224, 64%, 26%) |
| OKLCH | oklch(32.4% 0.112 265.7) |
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 #182E6C | 12.75:1 | AAA | Lc -101.9 | Preferred for body text |
| Black text on #182E6C | 1.64:1 | Fails | Lc 0.0 | Not readable |
| #182E6C text on white | 12.75:1 | AAA | Lc 98.5 | Preferred for body text |
| #182E6C text on black | 1.64:1 | 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 900.
-
Step 50
50
#F2F5FD
oklch(97% 0.011 269.6)
-
Step 100
100
#E2EAFB
oklch(93.6% 0.025 265.6)
-
Step 200
200
#CBD9F9
oklch(88.5% 0.047 266.7)
-
Step 300
300
#A7C0F8
oklch(80.9% 0.084 265.9)
-
Step 400
400
#799DF4
oklch(70.7% 0.134 266)
-
Step 500
500
#5782F0
oklch(63.1% 0.172 265.7)
-
Step 600
600
#3E69DE
oklch(55.6% 0.185 265.5)
-
Step 700
700
#3156C1
oklch(49% 0.173 265.8)
-
Step 800
800
#29479C
oklch(42.7% 0.143 265.9)
-
Step 900
900 (this color)
#182E6C
oklch(32.4% 0.112 265.7)
-
Step 950
950
#162449
oklch(27% 0.071 266.2)
#182E6C 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) | #00366E | 0.025 |
| Deuteranopia (no green cones) | #002F6B | 0.018 |
| Tritanopia (no blue cones) | #003D48 | 0.088 |
| Achromatopsia (no color) | #323232 | 0.112 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #182E6C
#182E6C
oklch(32.4% 0.112 265.7)
- #433100
#433100
oklch(32.5% 0.066 86.2)
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 #182E6C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Marine #042E60 ΔE 0.027
- Marine Blue #01386A ΔE 0.031
- Prussian Blue #1D3557 ΔE 0.046
- Midnight Blue #191970 ΔE 0.051
- Twilight Blue #0A437A ΔE 0.062
- Dark Blue Grey #1F3B4D ΔE 0.075
- Midnight Green #073B4C ΔE 0.077
- Space Cadet #2B2D42 ΔE 0.078
Use #182E6C 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.