#1C3160
Closest named color: Prussian Blue (#1D3557). oklch(32.3% 0.088 264), rgb(28, 49, 96).
Aa
White text reads best on this color (12.66:1).
About this color
#1C3160 is a dark, moderately saturated blue. In OKLCH its lightness is 32%, its chroma 0.088 and its hue 264°. Its hue sits on the cool side of the wheel. The nearest named color is Prussian Blue (#1D3557), ΔE 0.022 away. White text reads best on it, at 12.66:1.
| Hue family | Blues |
| Lightness | dark (32%) |
| Chroma | moderately saturated (0.088) |
| Temperature | cool |
| Nearest name | Prussian Blue (#1D3557) |
| Black text | 1.65:1 |
| White text | 12.66:1 |
Values
| HEX | #1C3160 |
| RGB | rgb(28, 49, 96) |
| HSL | hsl(221, 55%, 24%) |
| OKLCH | oklch(32.3% 0.088 264) |
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 #1C3160 | 12.66:1 | AAA | Lc -101.9 | Preferred for body text |
| Black text on #1C3160 | 1.65:1 | Fails | Lc 0.0 | Not readable |
| #1C3160 text on white | 12.66:1 | AAA | Lc 98.5 | Preferred for body text |
| #1C3160 text on black | 1.65:1 | 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 950.
-
Step 50
50
#F1F6FF
oklch(97.2% 0.013 262.4)
-
Step 100
100
#E0EAFF
oklch(93.6% 0.03 265.3)
-
Step 200
200
#C7DAFF
oklch(88.6% 0.055 263.7)
-
Step 300
300
#A1C0FF
oklch(80.8% 0.096 264.1)
-
Step 400
400
#6F9DFF
oklch(70.7% 0.152 263.9)
-
Step 500
500
#4A80FF
oklch(63.1% 0.198 264.2)
-
Step 600
600
#2862F7
oklch(55.5% 0.231 264)
-
Step 700
700
#1D50D8
oklch(49.2% 0.215 264.1)
-
Step 800
800
#1943AE
oklch(42.8% 0.177 264)
-
Step 900
900
#1A3A8A
oklch(37.7% 0.139 264.2)
-
Step 950
950 (this color)
#1C3160
oklch(32.3% 0.088 264)
#1C3160 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) | #1A3662 | 0.015 |
| Deuteranopia (no green cones) | #0D305F | 0.015 |
| Tritanopia (no blue cones) | #003C43 | 0.073 |
| Achromatopsia (no color) | #333333 | 0.088 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1C3160
#1C3160
oklch(32.3% 0.088 264)
- #443000
#443000
oklch(32.4% 0.067 83.3)
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 #1C3160, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Prussian Blue #1D3557 ΔE 0.022
- Marine #042E60 ΔE 0.024
- Marine Blue #01386A ΔE 0.029
- Dark Blue Grey #1F3B4D ΔE 0.052
- Space Cadet #2B2D42 ΔE 0.055
- Midnight Green #073B4C ΔE 0.055
- Gunmetal #293241 ΔE 0.059
- Twilight Blue #0A437A ΔE 0.064
Use #1C3160 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.