#184F85
Closest named color: Light Navy (#155084). oklch(42.2% 0.106 251.6), rgb(24, 79, 133).
Aa
White text reads best on this color (8.41:1).
About this color
#184F85 is a dark, moderately saturated blue. In OKLCH its lightness is 42%, its chroma 0.106 and its hue 252°. Its hue sits on the cool side of the wheel. The nearest named color is Light Navy (#155084), ΔE 0.004 away. White text reads best on it, at 8.41:1.
| Hue family | Blues |
| Lightness | dark (42%) |
| Chroma | moderately saturated (0.106) |
| Temperature | cool |
| Nearest name | Light Navy (#155084) |
| Black text | 2.49:1 |
| White text | 8.41:1 |
Values
| HEX | #184F85 |
| RGB | rgb(24, 79, 133) |
| HSL | hsl(210, 69%, 31%) |
| OKLCH | oklch(42.2% 0.106 251.6) |
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 #184F85 | 8.41:1 | AAA | Lc -93.2 | Preferred for body text |
| Black text on #184F85 | 2.49:1 | Fails | Lc 15.4 | Dividers and decoration only |
| #184F85 text on white | 8.41:1 | AAA | Lc 88.6 | Fine for body text |
| #184F85 text on black | 2.49:1 | Fails | Lc -13.6 | 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
#F1F6FB
oklch(97.1% 0.009 247.9)
-
Step 100
100
#E1EBF6
oklch(93.6% 0.018 250.6)
-
Step 200
200
#C9DBF0
oklch(88.4% 0.035 252.3)
-
Step 300
300
#A4C4E8
oklch(80.9% 0.062 251.6)
-
Step 400
400
#72A5DD
oklch(70.8% 0.099 251.6)
-
Step 500
500
#4A8DD3
oklch(63.1% 0.126 251.4)
-
Step 600
600
#2A76C1
oklch(55.7% 0.138 251.6)
-
Step 700
700
#1C62A6
oklch(49% 0.128 251.8)
-
Step 800
800 (this color)
#184F85
oklch(42.2% 0.106 251.6)
-
Step 900
900
#1C436C
oklch(37.7% 0.083 251.9)
-
Step 950
950
#11283F
oklch(27.1% 0.052 250.3)
#184F85 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) | #355387 | 0.031 |
| Deuteranopia (no green cones) | #234984 | 0.018 |
| Tritanopia (no blue cones) | #005C63 | 0.079 |
| Achromatopsia (no color) | #4D4D4D | 0.106 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #184F85
#184F85
oklch(42.2% 0.106 251.6)
- #6C4400
#6C4400
oklch(42.3% 0.091 71.6)
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 #184F85, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Navy #155084 ΔE 0.004
- Deep Sea Blue #015482 ΔE 0.018
- Dusk Blue #26538D ΔE 0.021
- Cobalt #1E488F ΔE 0.028
- Light Navy Blue #2E5A88 ΔE 0.040
- Twilight Blue #0A437A ΔE 0.041
- Denim Blue #3B5B92 ΔE 0.055
- YInMn Blue #415A77 ΔE 0.063
Use #184F85 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.