#18344A
Closest named color: Midnight Green (#073B4C). oklch(31.4% 0.052 244.3), rgb(24, 52, 74).
Aa
White text reads best on this color (12.89:1).
About this color
#18344A is a dark, muted blue. In OKLCH its lightness is 31%, its chroma 0.052 and its hue 244°. Its hue sits on the cool side of the wheel. The nearest named color is Midnight Green (#073B4C), ΔE 0.024 away. White text reads best on it, at 12.89:1.
| Hue family | Blues |
| Lightness | dark (31%) |
| Chroma | muted (0.052) |
| Temperature | cool |
| Nearest name | Midnight Green (#073B4C) |
| Black text | 1.62:1 |
| White text | 12.89:1 |
Values
| HEX | #18344A |
| RGB | rgb(24, 52, 74) |
| HSL | hsl(206, 51%, 19%) |
| OKLCH | oklch(31.4% 0.052 244.3) |
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 #18344A | 12.89:1 | AAA | Lc -102.2 | Preferred for body text |
| Black text on #18344A | 1.62:1 | Fails | Lc 0.0 | Not readable |
| #18344A text on white | 12.89:1 | AAA | Lc 98.9 | Preferred for body text |
| #18344A text on black | 1.62:1 | 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
#E0EBF5
oklch(93.5% 0.018 245.4)
-
Step 200
200
#C7DCEF
oklch(88.5% 0.035 245.5)
-
Step 300
300
#9FC6E6
oklch(80.9% 0.062 243.3)
-
Step 400
400
#69A7DA
oklch(70.7% 0.099 244.7)
-
Step 500
500
#3A90D0
oklch(63.1% 0.126 244.5)
-
Step 600
600
#0279BD
oklch(55.6% 0.137 244.3)
-
Step 700
700
#0066A0
oklch(49.2% 0.121 244)
-
Step 800
800
#005384
oklch(42.6% 0.106 244.3)
-
Step 900
900
#11456A
oklch(37.7% 0.083 244.6)
-
Step 950
950 (this color)
#18344A
oklch(31.4% 0.052 244.3)
#18344A 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) | #2A344B | 0.024 |
| Deuteranopia (no green cones) | #242F4A | 0.021 |
| Tritanopia (no blue cones) | #00393C | 0.039 |
| Achromatopsia (no color) | #323232 | 0.052 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #18344A
#18344A
oklch(31.4% 0.052 244.3)
- #442B12
#442B12
oklch(31.4% 0.053 63.7)
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 #18344A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Midnight Green #073B4C ΔE 0.024
- Prussian Blue #1D3557 ΔE 0.025
- Gunmetal #293241 ΔE 0.025
- Dark Blue Grey #1F3B4D ΔE 0.026
- Space Cadet #2B2D42 ΔE 0.032
- Oxford Blue #1B263B ΔE 0.049
- Onyx #343A40 ΔE 0.050
- Marine #042E60 ΔE 0.050
Use #18344A 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.