#2E3161
Closest named color: Prussian Blue (#1D3557). oklch(33.7% 0.083 278.2), rgb(46, 49, 97).
Aa
White text reads best on this color (12.15:1).
About this color
#2E3161 is a dark, moderately saturated blue. In OKLCH its lightness is 34%, its chroma 0.083 and its hue 278°. Its hue sits on the cool side of the wheel. The nearest named color is Prussian Blue (#1D3557), ΔE 0.033 away. White text reads best on it, at 12.15:1.
| Hue family | Blues |
| Lightness | dark (34%) |
| Chroma | moderately saturated (0.083) |
| Temperature | cool |
| Nearest name | Prussian Blue (#1D3557) |
| Black text | 1.72:1 |
| White text | 12.15:1 |
Values
| HEX | #2E3161 |
| RGB | rgb(46, 49, 97) |
| HSL | hsl(236, 36%, 28%) |
| OKLCH | oklch(33.7% 0.083 278.2) |
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 #2E3161 | 12.15:1 | AAA | Lc -101.1 | Preferred for body text |
| Black text on #2E3161 | 1.72:1 | Fails | Lc 0.0 | Not readable |
| #2E3161 text on white | 12.15:1 | AAA | Lc 97.6 | Preferred for body text |
| #2E3161 text on black | 1.72:1 | 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
#F4F5FB
oklch(97.1% 0.008 278.6)
-
Step 100
100
#E7E9F6
oklch(93.6% 0.018 279.1)
-
Step 200
200
#D3D7F1
oklch(88.4% 0.036 278.7)
-
Step 300
300
#B7BDE9
oklch(80.8% 0.062 278.8)
-
Step 400
400
#929ADE
oklch(70.6% 0.1 278.4)
-
Step 500
500
#7880D5
oklch(63.1% 0.127 278)
-
Step 600
600
#6268C3
oklch(55.7% 0.139 278)
-
Step 700
700
#5256A8
oklch(49.2% 0.129 278.4)
-
Step 800
800
#434788
oklch(42.8% 0.106 278.3)
-
Step 900
900 (this color)
#2E3161
oklch(33.7% 0.083 278.2)
-
Step 950
950
#212340
oklch(27% 0.054 279.2)
#2E3161 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) | #1D3863 | 0.028 |
| Deuteranopia (no green cones) | #183460 | 0.029 |
| Tritanopia (no blue cones) | #1A3B44 | 0.073 |
| Achromatopsia (no color) | #363636 | 0.083 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2E3161
#2E3161
oklch(33.7% 0.083 278.2)
- #413700
#413700
oklch(33.7% 0.07 97.8)
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 #2E3161, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Prussian Blue #1D3557 ΔE 0.033
- Marine Blue #01386A ΔE 0.045
- Marine #042E60 ΔE 0.049
- Space Cadet #2B2D42 ΔE 0.055
- Dark Blue Grey #1F3B4D ΔE 0.056
- Gunmetal #293241 ΔE 0.060
- Twilight Blue #0A437A ΔE 0.066
- Midnight Green #073B4C ΔE 0.067
Use #2E3161 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.