#18326A
Closest named color: Marine Blue (#01386A). oklch(33.2% 0.103 263.2), rgb(24, 50, 106).
Aa
White text reads best on this color (12.32:1).
About this color
#18326A is a dark, moderately saturated blue. In OKLCH its lightness is 33%, its chroma 0.103 and its hue 263°. Its hue sits on the cool side of the wheel. The nearest named color is Marine Blue (#01386A), ΔE 0.021 away. White text reads best on it, at 12.32:1.
| Hue family | Blues |
| Lightness | dark (33%) |
| Chroma | moderately saturated (0.103) |
| Temperature | cool |
| Nearest name | Marine Blue (#01386A) |
| Black text | 1.70:1 |
| White text | 12.32:1 |
Values
| HEX | #18326A |
| RGB | rgb(24, 50, 106) |
| HSL | hsl(221, 63%, 25%) |
| OKLCH | oklch(33.2% 0.103 263.2) |
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 #18326A | 12.32:1 | AAA | Lc -101.3 | Preferred for body text |
| Black text on #18326A | 1.70:1 | Fails | Lc 0.0 | Not readable |
| #18326A text on white | 12.32:1 | AAA | Lc 97.7 | Preferred for body text |
| #18326A text on black | 1.70:1 | 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
#F2F6FD
oklch(97.2% 0.01 261.8)
-
Step 100
100
#E2EAF9
oklch(93.5% 0.022 263.2)
-
Step 200
200
#CADAF6
oklch(88.5% 0.042 261.7)
-
Step 300
300
#A7C1F3
oklch(80.9% 0.077 263.3)
-
Step 400
400
#789FEE
oklch(70.7% 0.124 263.5)
-
Step 500
500
#5585E8
oklch(63.1% 0.158 263.1)
-
Step 600
600
#3B6CD6
oklch(55.5% 0.172 263.3)
-
Step 700
700
#2D5ABA
oklch(49.2% 0.16 263)
-
Step 800
800
#264A96
oklch(42.7% 0.132 263)
-
Step 900
900 (this color)
#18326A
oklch(33.2% 0.103 263.2)
-
Step 950
950
#152546
oklch(27% 0.065 263.2)
#18326A 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) | #11396C | 0.020 |
| Deuteranopia (no green cones) | #003169 | 0.018 |
| Tritanopia (no blue cones) | #003F49 | 0.081 |
| Achromatopsia (no color) | #353535 | 0.103 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #18326A
#18326A
oklch(33.2% 0.103 263.2)
- #473200
#473200
oklch(33.3% 0.068 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 #18326A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Marine Blue #01386A ΔE 0.021
- Marine #042E60 ΔE 0.028
- Prussian Blue #1D3557 ΔE 0.037
- Twilight Blue #0A437A ΔE 0.053
- Midnight Blue #191970 ΔE 0.063
- Dark Blue Grey #1F3B4D ΔE 0.064
- Midnight Green #073B4C ΔE 0.067
- Space Cadet #2B2D42 ΔE 0.073
Use #18326A 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.