#184594
Closest named color: Cobalt (#1E488F). oklch(40.9% 0.139 260.8), rgb(24, 69, 148).
Aa
White text reads best on this color (9.06:1).
About this color
#184594 is a dark, moderately saturated blue. In OKLCH its lightness is 41%, its chroma 0.139 and its hue 261°. Its hue sits on the cool side of the wheel. The nearest named color is Cobalt (#1E488F), ΔE 0.013 away. White text reads best on it, at 9.06:1.
| Hue family | Blues |
| Lightness | dark (41%) |
| Chroma | moderately saturated (0.139) |
| Temperature | cool |
| Nearest name | Cobalt (#1E488F) |
| Black text | 2.31:1 |
| White text | 9.06:1 |
Values
| HEX | #184594 |
| RGB | rgb(24, 69, 148) |
| HSL | hsl(218, 72%, 34%) |
| OKLCH | oklch(40.9% 0.139 260.8) |
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 #184594 | 9.06:1 | AAA | Lc -94.8 | Preferred for body text |
| Black text on #184594 | 2.31:1 | Fails | Lc 13.7 | Not readable |
| #184594 text on white | 9.06:1 | AAA | Lc 90.3 | Preferred for body text |
| #184594 text on black | 2.31:1 | Fails | Lc -12.0 | 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 800.
-
Step 50
50
#F1F6FD
oklch(97.1% 0.011 256.7)
-
Step 100
100
#E1EAFA
oklch(93.5% 0.024 262.1)
-
Step 200
200
#C8DAF8
oklch(88.4% 0.046 260.7)
-
Step 300
300
#A3C2F6
oklch(81% 0.081 260.6)
-
Step 400
400
#71A0F1
oklch(70.7% 0.13 260.8)
-
Step 500
500
#4B86ED
oklch(63.1% 0.167 260.7)
-
Step 600
600
#2E6DDB
oklch(55.6% 0.181 260.7)
-
Step 700
700
#215ABE
oklch(49.1% 0.168 260.8)
-
Step 800
800 (this color)
#184594
oklch(40.9% 0.139 260.8)
-
Step 900
900
#1D3F7A
oklch(37.7% 0.108 260.6)
-
Step 950
950
#122548
oklch(27% 0.07 261.5)
#184594 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) | #0B4F97 | 0.027 |
| Deuteranopia (no green cones) | #004392 | 0.015 |
| Tritanopia (no blue cones) | #005865 | 0.107 |
| Achromatopsia (no color) | #494949 | 0.139 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #184594
#184594
oklch(40.9% 0.139 260.8)
- #614400
#614400
oklch(40.8% 0.084 80.9)
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 #184594, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cobalt #1E488F ΔE 0.013
- Light Navy #155084 ΔE 0.044
- Twilight Blue #0A437A ΔE 0.045
- Dusk Blue #26538D ΔE 0.046
- Sapphire #2138AB ΔE 0.049
- Blueberry #464196 ΔE 0.054
- Deep Sea Blue #015482 ΔE 0.056
- Dark Slate Blue #483D8B ΔE 0.060
Use #184594 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.