#182E76
Closest named color: Marine Blue (#01386A). oklch(33.3% 0.126 266.4), rgb(24, 46, 118).
Aa
White text reads best on this color (12.41:1).
About this color
#182E76 is a dark, moderately saturated blue. In OKLCH its lightness is 33%, its chroma 0.126 and its hue 266°. Its hue sits on the cool side of the wheel. The nearest named color is Marine Blue (#01386A), ΔE 0.038 away. White text reads best on it, at 12.41:1.
| Hue family | Blues |
| Lightness | dark (33%) |
| Chroma | moderately saturated (0.126) |
| Temperature | cool |
| Nearest name | Marine Blue (#01386A) |
| Black text | 1.69:1 |
| White text | 12.41:1 |
Values
| HEX | #182E76 |
| RGB | rgb(24, 46, 118) |
| HSL | hsl(226, 66%, 28%) |
| OKLCH | oklch(33.3% 0.126 266.4) |
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 #182E76 | 12.41:1 | AAA | Lc -101.3 | Preferred for body text |
| Black text on #182E76 | 1.69:1 | Fails | Lc 0.0 | Not readable |
| #182E76 text on white | 12.41:1 | AAA | Lc 97.8 | Preferred for body text |
| #182E76 text on black | 1.69:1 | 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 900.
-
Step 50
50
#F1F5FE
oklch(97% 0.013 266.7)
-
Step 100
100
#E1EAFD
oklch(93.6% 0.028 265.4)
-
Step 200
200
#C9D9FD
oklch(88.5% 0.053 266.4)
-
Step 300
300
#A4BFFF
oklch(80.8% 0.096 266.6)
-
Step 400
400
#759CFF
oklch(70.8% 0.151 266.4)
-
Step 500
500
#537FFD
oklch(63.1% 0.194 266.4)
-
Step 600
600
#3A64EC
oklch(55.6% 0.21 266.4)
-
Step 700
700
#2D52CE
oklch(49.2% 0.196 266.3)
-
Step 800
800
#2644A6
oklch(42.7% 0.162 266.4)
-
Step 900
900 (this color)
#182E76
oklch(33.3% 0.126 266.4)
-
Step 950
950
#14234D
oklch(27% 0.08 266.3)
#182E76 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) | #003978 | 0.031 |
| Deuteranopia (no green cones) | #003075 | 0.017 |
| Tritanopia (no blue cones) | #00404D | 0.099 |
| Achromatopsia (no color) | #343434 | 0.127 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #182E76
#182E76
oklch(33.3% 0.126 266.4)
- #453300
#453300
oklch(33.2% 0.068 86.9)
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 #182E76, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Marine Blue #01386A ΔE 0.038
- Marine #042E60 ΔE 0.043
- Midnight Blue #191970 ΔE 0.050
- Twilight Blue #0A437A ΔE 0.058
- Prussian Blue #1D3557 ΔE 0.061
- Royal #0C1793 ΔE 0.067
- Cobalt #1E488F ΔE 0.082
- Dark Blue #00008B ΔE 0.086
Use #182E76 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.