#2B3276
Closest named color: Marine Blue (#01386A). oklch(35.3% 0.115 274.4), rgb(43, 50, 118).
Aa
White text reads best on this color (11.53:1).
About this color
#2B3276 is a dark, moderately saturated blue. In OKLCH its lightness is 35%, its chroma 0.115 and its hue 274°. Its hue sits on the cool side of the wheel. The nearest named color is Marine Blue (#01386A), ΔE 0.046 away. White text reads best on it, at 11.53:1.
| Hue family | Blues |
| Lightness | dark (35%) |
| Chroma | moderately saturated (0.115) |
| Temperature | cool |
| Nearest name | Marine Blue (#01386A) |
| Black text | 1.82:1 |
| White text | 11.53:1 |
Values
| HEX | #2B3276 |
| RGB | rgb(43, 50, 118) |
| HSL | hsl(234, 47%, 32%) |
| OKLCH | oklch(35.3% 0.115 274.4) |
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 #2B3276 | 11.53:1 | AAA | Lc -100.0 | Preferred for body text |
| Black text on #2B3276 | 1.82:1 | Fails | Lc 7.6 | Not readable |
| #2B3276 text on white | 11.53:1 | AAA | Lc 96.3 | Preferred for body text |
| #2B3276 text on black | 1.82:1 | 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
#F3F5FE
oklch(97.1% 0.012 276.1)
-
Step 100
100
#E4E9FB
oklch(93.6% 0.025 273.5)
-
Step 200
200
#CFD7FA
oklch(88.4% 0.049 275.2)
-
Step 300
300
#AFBDF9
oklch(80.9% 0.086 274.1)
-
Step 400
400
#8798F6
oklch(70.6% 0.139 274.5)
-
Step 500
500
#6C7CF2
oklch(63.2% 0.176 274.4)
-
Step 600
600
#5661E1
oklch(55.6% 0.192 274.6)
-
Step 700
700
#464FC3
oklch(49% 0.179 274.3)
-
Step 800
800
#3A429E
oklch(42.8% 0.148 274.5)
-
Step 900
900 (this color)
#2B3276
oklch(35.3% 0.115 274.4)
-
Step 950
950
#1C2249
oklch(27% 0.072 274)
#2B3276 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) | #003C78 | 0.041 |
| Deuteranopia (no green cones) | #003675 | 0.038 |
| Tritanopia (no blue cones) | #00424F | 0.098 |
| Achromatopsia (no color) | #393939 | 0.116 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2B3276
#2B3276
oklch(35.3% 0.115 274.4)
- #473A00
#473A00
oklch(35.2% 0.072 94.8)
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 #2B3276, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Marine Blue #01386A ΔE 0.046
- Twilight Blue #0A437A ΔE 0.051
- Marine #042E60 ΔE 0.059
- Prussian Blue #1D3557 ΔE 0.060
- Dark Slate Blue #483D8B ΔE 0.067
- Cobalt #1E488F ΔE 0.069
- Midnight Blue #191970 ΔE 0.071
- Blueberry #464196 ΔE 0.080
Use #2B3276 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.