#312E6D
Closest named color: Marine Blue (#01386A). oklch(34.2% 0.106 281.3), rgb(49, 46, 109).
Aa
White text reads best on this color (12.05:1).
About this color
#312E6D is a dark, moderately saturated purple. In OKLCH its lightness is 34%, its chroma 0.106 and its hue 281°. Its hue sits on the cool side of the wheel. The nearest named color is Marine Blue (#01386A), ΔE 0.052 away. White text reads best on it, at 12.05:1.
| Hue family | Purples |
| Lightness | dark (34%) |
| Chroma | moderately saturated (0.106) |
| Temperature | cool |
| Nearest name | Marine Blue (#01386A) |
| Black text | 1.74:1 |
| White text | 12.05:1 |
Values
| HEX | #312E6D |
| RGB | rgb(49, 46, 109) |
| HSL | hsl(243, 41%, 30%) |
| OKLCH | oklch(34.2% 0.106 281.3) |
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 #312E6D | 12.05:1 | AAA | Lc -100.9 | Preferred for body text |
| Black text on #312E6D | 1.74:1 | Fails | Lc 0.0 | Not readable |
| #312E6D text on white | 12.05:1 | AAA | Lc 97.3 | Preferred for body text |
| #312E6D 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
#F4F5FD
oklch(97.2% 0.011 280.5)
-
Step 100
100
#E7E8F9
oklch(93.5% 0.023 283.3)
-
Step 200
200
#D3D6F6
oklch(88.4% 0.044 281.2)
-
Step 300
300
#B7BBF4
oklch(80.9% 0.08 281.3)
-
Step 400
400
#9396EE
oklch(70.7% 0.128 281.1)
-
Step 500
500
#7B79E8
oklch(63% 0.163 281.5)
-
Step 600
600
#665FD6
oklch(55.5% 0.177 281.6)
-
Step 700
700
#554EBA
oklch(49.2% 0.165 281.4)
-
Step 800
800
#454196
oklch(42.8% 0.135 281.1)
-
Step 900
900 (this color)
#312E6D
oklch(34.2% 0.106 281.3)
-
Step 950
950
#212146
oklch(26.9% 0.067 280.9)
#312E6D 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) | #07386F | 0.048 |
| Deuteranopia (no green cones) | #00346C | 0.050 |
| Tritanopia (no blue cones) | #183C48 | 0.091 |
| Achromatopsia (no color) | #363636 | 0.107 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #312E6D
#312E6D
oklch(34.2% 0.106 281.3)
- #403900
#403900
oklch(34.1% 0.071 101.7)
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 #312E6D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Marine Blue #01386A ΔE 0.052
- Prussian Blue #1D3557 ΔE 0.054
- Marine #042E60 ΔE 0.057
- Twilight Blue #0A437A ΔE 0.066
- Midnight Blue #191970 ΔE 0.068
- Dark Slate Blue #483D8B ΔE 0.075
- Space Cadet #2B2D42 ΔE 0.078
- Dark Blue Grey #1F3B4D ΔE 0.079
Use #312E6D 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.