#2B2D6A
Closest named color: Marine Blue (#01386A). oklch(33.2% 0.104 277.7), rgb(43, 45, 106).
Aa
White text reads best on this color (12.45:1).
About this color
#2B2D6A is a dark, moderately saturated blue. In OKLCH its lightness is 33%, its chroma 0.104 and its hue 278°. 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 12.45:1.
| Hue family | Blues |
| Lightness | dark (33%) |
| Chroma | moderately saturated (0.104) |
| Temperature | cool |
| Nearest name | Marine Blue (#01386A) |
| Black text | 1.68:1 |
| White text | 12.45:1 |
Values
| HEX | #2B2D6A |
| RGB | rgb(43, 45, 106) |
| HSL | hsl(238, 42%, 29%) |
| OKLCH | oklch(33.2% 0.104 277.7) |
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 #2B2D6A | 12.45:1 | AAA | Lc -101.5 | Preferred for body text |
| Black text on #2B2D6A | 1.68:1 | Fails | Lc 0.0 | Not readable |
| #2B2D6A text on white | 12.45:1 | AAA | Lc 98.1 | Preferred for body text |
| #2B2D6A text on black | 1.68:1 | 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
#F3F5FD
oklch(97.1% 0.011 274.9)
-
Step 100
100
#E6E9F9
oklch(93.6% 0.022 277.5)
-
Step 200
200
#D2D7F6
oklch(88.5% 0.043 278.2)
-
Step 300
300
#B4BCF3
oklch(80.8% 0.078 278.1)
-
Step 400
400
#8E98EE
oklch(70.7% 0.126 277.6)
-
Step 500
500
#747CE8
oklch(63.1% 0.16 277.6)
-
Step 600
600
#5E62D6
oklch(55.5% 0.174 277.6)
-
Step 700
700
#4E51B9
oklch(49.1% 0.161 277.5)
-
Step 800
800
#404396
oklch(42.8% 0.133 277.6)
-
Step 900
900 (this color)
#2B2D6A
oklch(33.2% 0.104 277.7)
-
Step 950
950
#1F2246
oklch(27% 0.066 277.4)
#2B2D6A 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) | #06376C | 0.042 |
| Deuteranopia (no green cones) | #003169 | 0.042 |
| Tritanopia (no blue cones) | #083B46 | 0.092 |
| Achromatopsia (no color) | #343434 | 0.105 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2B2D6A
#2B2D6A
oklch(33.2% 0.104 277.7)
- #403600
#403600
oklch(33.4% 0.069 97.7)
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 #2B2D6A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Marine Blue #01386A ΔE 0.046
- Marine #042E60 ΔE 0.046
- Prussian Blue #1D3557 ΔE 0.047
- Midnight Blue #191970 ΔE 0.060
- Twilight Blue #0A437A ΔE 0.067
- Space Cadet #2B2D42 ΔE 0.072
- Dark Blue Grey #1F3B4D ΔE 0.075
- Gunmetal #293241 ΔE 0.078
Use #2B2D6A 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.