#312C61
Closest named color: Prussian Blue (#1D3557). oklch(32.8% 0.091 284.5), rgb(49, 44, 97).
Aa
White text reads best on this color (12.62:1).
About this color
#312C61 is a dark, moderately saturated purple. In OKLCH its lightness is 33%, its chroma 0.091 and its hue 285°. Its hue sits on the cool side of the wheel. The nearest named color is Prussian Blue (#1D3557), ΔE 0.043 away. White text reads best on it, at 12.62:1.
| Hue family | Purples |
| Lightness | dark (33%) |
| Chroma | moderately saturated (0.091) |
| Temperature | cool |
| Nearest name | Prussian Blue (#1D3557) |
| Black text | 1.66:1 |
| White text | 12.62:1 |
Values
| HEX | #312C61 |
| RGB | rgb(49, 44, 97) |
| HSL | hsl(246, 38%, 28%) |
| OKLCH | oklch(32.8% 0.091 284.5) |
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 #312C61 | 12.62:1 | AAA | Lc -101.8 | Preferred for body text |
| Black text on #312C61 | 1.66:1 | Fails | Lc 0.0 | Not readable |
| #312C61 text on white | 12.62:1 | AAA | Lc 98.5 | Preferred for body text |
| #312C61 text on black | 1.66:1 | 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
#F4F5FC
oklch(97.1% 0.009 279.7)
-
Step 100
100
#E8E8F7
oklch(93.5% 0.02 286)
-
Step 200
200
#D6D6F2
oklch(88.5% 0.038 285.6)
-
Step 300
300
#BBBBEC
oklch(80.9% 0.069 284.8)
-
Step 400
400
#9997E2
oklch(70.7% 0.109 284.5)
-
Step 500
500
#817BDA
oklch(63.1% 0.14 284.5)
-
Step 600
600
#6C62C7
oklch(55.5% 0.152 284.8)
-
Step 700
700
#5A51AC
oklch(49.1% 0.14 284.4)
-
Step 800
800
#49438B
oklch(42.7% 0.116 284.1)
-
Step 900
900 (this color)
#312C61
oklch(32.8% 0.091 284.5)
-
Step 950
950
#242241
oklch(27.1% 0.057 284.9)
#312C61 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) | #133563 | 0.043 |
| Deuteranopia (no green cones) | #113160 | 0.043 |
| Tritanopia (no blue cones) | #213742 | 0.076 |
| Achromatopsia (no color) | #333333 | 0.091 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #312C61
#312C61
oklch(32.8% 0.091 284.5)
- #3B3600
#3B3600
oklch(32.8% 0.069 103.8)
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 #312C61, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Prussian Blue #1D3557 ΔE 0.043
- Marine #042E60 ΔE 0.052
- Marine Blue #01386A ΔE 0.055
- Space Cadet #2B2D42 ΔE 0.058
- Gunmetal #293241 ΔE 0.066
- Dark Blue Grey #1F3B4D ΔE 0.068
- Midnight Blue #191970 ΔE 0.071
- Twilight Blue #0A437A ΔE 0.078
Use #312C61 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.