#184991
Closest named color: Cobalt (#1E488F). oklch(41.6% 0.13 258.6), rgb(24, 73, 145).
Aa
White text reads best on this color (8.74:1).
About this color
#184991 is a dark, moderately saturated blue. In OKLCH its lightness is 42%, its chroma 0.130 and its hue 259°. Its hue sits on the cool side of the wheel. The nearest named color is Cobalt (#1E488F), ΔE 0.005 away. White text reads best on it, at 8.74:1.
| Hue family | Blues |
| Lightness | dark (42%) |
| Chroma | moderately saturated (0.130) |
| Temperature | cool |
| Nearest name | Cobalt (#1E488F) |
| Black text | 2.40:1 |
| White text | 8.74:1 |
Values
| HEX | #184991 |
| RGB | rgb(24, 73, 145) |
| HSL | hsl(216, 72%, 33%) |
| OKLCH | oklch(41.6% 0.13 258.6) |
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 #184991 | 8.74:1 | AAA | Lc -94.0 | Preferred for body text |
| Black text on #184991 | 2.40:1 | Fails | Lc 14.5 | Not readable |
| #184991 text on white | 8.74:1 | AAA | Lc 89.5 | Fine for body text |
| #184991 text on black | 2.40:1 | Fails | Lc -12.7 | 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
#F1F6FC
oklch(97.1% 0.01 252.8)
-
Step 100
100
#E1EBF9
oklch(93.7% 0.022 256.7)
-
Step 200
200
#C9DAF6
oklch(88.4% 0.043 260.4)
-
Step 300
300
#A3C2F2
oklch(80.8% 0.076 259)
-
Step 400
400
#71A1EC
oklch(70.6% 0.122 259)
-
Step 500
500
#4A88E6
oklch(63.1% 0.156 258.6)
-
Step 600
600
#2C70D4
oklch(55.7% 0.169 258.5)
-
Step 700
700
#1E5DB8
oklch(49.2% 0.157 258.5)
-
Step 800
800 (this color)
#184991
oklch(41.6% 0.13 258.6)
-
Step 900
900
#1C4076
oklch(37.6% 0.101 258.5)
-
Step 950
950
#112645
oklch(27% 0.064 258.1)
#184991 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) | #1F5194 | 0.024 |
| Deuteranopia (no green cones) | #004690 | 0.016 |
| Tritanopia (no blue cones) | #005A66 | 0.099 |
| Achromatopsia (no color) | #4B4B4B | 0.130 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #184991
#184991
oklch(41.6% 0.13 258.6)
- #654500
#654500
oklch(41.6% 0.086 78.5)
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 #184991, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cobalt #1E488F ΔE 0.005
- Light Navy #155084 ΔE 0.032
- Dusk Blue #26538D ΔE 0.034
- Twilight Blue #0A437A ΔE 0.043
- Deep Sea Blue #015482 ΔE 0.044
- Blueberry #464196 ΔE 0.055
- Light Navy Blue #2E5A88 ΔE 0.060
- Sapphire #2138AB ΔE 0.060
Use #184991 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.