#2D2F6E
Closest named color: Marine Blue (#01386A). oklch(34.1% 0.107 277.7), rgb(45, 47, 110).
Aa
White text reads best on this color (12.04:1).
About this color
#2D2F6E is a dark, moderately saturated blue. In OKLCH its lightness is 34%, its chroma 0.107 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 12.04:1.
| Hue family | Blues |
| Lightness | dark (34%) |
| Chroma | moderately saturated (0.107) |
| Temperature | cool |
| Nearest name | Marine Blue (#01386A) |
| Black text | 1.74:1 |
| White text | 12.04:1 |
Values
| HEX | #2D2F6E |
| RGB | rgb(45, 47, 110) |
| HSL | hsl(238, 42%, 30%) |
| OKLCH | oklch(34.1% 0.107 277.7) |
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 #2D2F6E | 12.04:1 | AAA | Lc -100.9 | Preferred for body text |
| Black text on #2D2F6E | 1.74:1 | Fails | Lc 0.0 | Not readable |
| #2D2F6E text on white | 12.04:1 | AAA | Lc 97.3 | Preferred for body text |
| #2D2F6E text on black | 1.74:1 | 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
#E6E9FA
oklch(93.7% 0.023 277.9)
-
Step 200
200
#D1D7F7
oklch(88.5% 0.044 277.1)
-
Step 300
300
#B4BCF5
oklch(80.9% 0.081 278.2)
-
Step 400
400
#8E98EF
oklch(70.8% 0.127 277.6)
-
Step 500
500
#747BEA
oklch(63% 0.164 277.9)
-
Step 600
600
#5E61D8
oklch(55.5% 0.178 277.8)
-
Step 700
700
#4E50BC
oklch(49.1% 0.166 277.6)
-
Step 800
800
#404298
oklch(42.7% 0.138 277.8)
-
Step 900
900 (this color)
#2D2F6E
oklch(34.1% 0.107 277.7)
-
Step 950
950
#1F2247
oklch(27.1% 0.068 277.3)
#2D2F6E 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) | #063970 | 0.043 |
| Deuteranopia (no green cones) | #00346D | 0.043 |
| Tritanopia (no blue cones) | #0A3E49 | 0.095 |
| Achromatopsia (no color) | #363636 | 0.107 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2D2F6E
#2D2F6E
oklch(34.1% 0.107 277.7)
- #423800
#423800
oklch(34.1% 0.07 98)
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 #2D2F6E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Marine Blue #01386A ΔE 0.046
- Prussian Blue #1D3557 ΔE 0.051
- Marine #042E60 ΔE 0.052
- Twilight Blue #0A437A ΔE 0.061
- Midnight Blue #191970 ΔE 0.066
- Dark Blue Grey #1F3B4D ΔE 0.077
- Dark Slate Blue #483D8B ΔE 0.077
- Space Cadet #2B2D42 ΔE 0.078
Use #2D2F6E 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.