#184369
Closest named color: Twilight Blue (#0A437A). oklch(37.3% 0.081 248.5), rgb(24, 67, 105).
Aa
White text reads best on this color (10.26:1).
About this color
#184369 is a dark, moderately saturated blue. In OKLCH its lightness is 37%, its chroma 0.081 and its hue 249°. Its hue sits on the cool side of the wheel. The nearest named color is Twilight Blue (#0A437A), ΔE 0.030 away. White text reads best on it, at 10.26:1.
| Hue family | Blues |
| Lightness | dark (37%) |
| Chroma | moderately saturated (0.081) |
| Temperature | cool |
| Nearest name | Twilight Blue (#0A437A) |
| Black text | 2.04:1 |
| White text | 10.26:1 |
Values
| HEX | #184369 |
| RGB | rgb(24, 67, 105) |
| HSL | hsl(208, 63%, 25%) |
| OKLCH | oklch(37.3% 0.081 248.5) |
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 #184369 | 10.26:1 | AAA | Lc -97.6 | Preferred for body text |
| Black text on #184369 | 2.04:1 | Fails | Lc 10.4 | Not readable |
| #184369 text on white | 10.26:1 | AAA | Lc 93.6 | Preferred for body text |
| #184369 text on black | 2.04:1 | Fails | Lc -9.0 | 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
#F1F6FB
oklch(97.1% 0.009 247.9)
-
Step 100
100
#E1EBF5
oklch(93.5% 0.017 248)
-
Step 200
200
#C9DCEF
oklch(88.6% 0.033 248.2)
-
Step 300
300
#A3C5E7
oklch(81% 0.061 248.6)
-
Step 400
400
#6FA6DA
oklch(70.7% 0.096 248)
-
Step 500
500
#468ED0
oklch(63% 0.123 248.6)
-
Step 600
600
#2277BE
oklch(55.6% 0.135 248.7)
-
Step 700
700
#1364A4
oklch(49.2% 0.125 248.6)
-
Step 800
800
#145284
oklch(42.7% 0.103 248)
-
Step 900
900 (this color)
#184369
oklch(37.3% 0.081 248.5)
-
Step 950
950
#10283E
oklch(27% 0.051 248.4)
#184369 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) | #32456B | 0.030 |
| Deuteranopia (no green cones) | #263D68 | 0.021 |
| Tritanopia (no blue cones) | #004C51 | 0.059 |
| Achromatopsia (no color) | #414141 | 0.081 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #184369
#184369
oklch(37.3% 0.081 248.5)
- #5C3701
#5C3701
oklch(37.3% 0.081 68.3)
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 #184369, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight Blue #0A437A ΔE 0.030
- Dark Grey Blue #29465B ΔE 0.032
- Marine Blue #01386A ΔE 0.040
- Charcoal #264653 ΔE 0.044
- Prussian Blue #1D3557 ΔE 0.049
- Dark Blue Grey #1F3B4D ΔE 0.050
- Light Navy #155084 ΔE 0.055
- Midnight Green #073B4C ΔE 0.056
Use #184369 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.