#312E61
Closest named color: Prussian Blue (#1D3557). oklch(33.3% 0.087 283.2), rgb(49, 46, 97).
Aa
White text reads best on this color (12.39:1).
About this color
#312E61 is a dark, moderately saturated purple. In OKLCH its lightness is 33%, its chroma 0.087 and its hue 283°. Its hue sits on the cool side of the wheel. The nearest named color is Prussian Blue (#1D3557), ΔE 0.040 away. White text reads best on it, at 12.39:1.
| Hue family | Purples |
| Lightness | dark (33%) |
| Chroma | moderately saturated (0.087) |
| Temperature | cool |
| Nearest name | Prussian Blue (#1D3557) |
| Black text | 1.69:1 |
| White text | 12.39:1 |
Values
| HEX | #312E61 |
| RGB | rgb(49, 46, 97) |
| HSL | hsl(244, 36%, 28%) |
| OKLCH | oklch(33.3% 0.087 283.2) |
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 #312E61 | 12.39:1 | AAA | Lc -101.5 | Preferred for body text |
| Black text on #312E61 | 1.69:1 | Fails | Lc 0.0 | Not readable |
| #312E61 text on white | 12.39:1 | AAA | Lc 98.1 | Preferred for body text |
| #312E61 text on black | 1.69:1 | 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
#F4F5FB
oklch(97.1% 0.008 278.6)
-
Step 100
100
#E8E9F7
oklch(93.7% 0.019 282.8)
-
Step 200
200
#D5D7F1
oklch(88.6% 0.036 282.1)
-
Step 300
300
#BABCEA
oklch(80.9% 0.065 282.9)
-
Step 400
400
#9898E0
oklch(70.8% 0.104 283.4)
-
Step 500
500
#7F7DD7
oklch(63.1% 0.133 282.9)
-
Step 600
600
#6A64C5
oklch(55.6% 0.146 283.4)
-
Step 700
700
#5852AA
oklch(49% 0.136 283.2)
-
Step 800
800
#48448A
oklch(42.7% 0.113 283.1)
-
Step 900
900 (this color)
#312E61
oklch(33.3% 0.087 283.2)
-
Step 950
950
#232240
oklch(26.9% 0.055 283.6)
#312E61 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) | #183663 | 0.038 |
| Deuteranopia (no green cones) | #153360 | 0.038 |
| Tritanopia (no blue cones) | #213943 | 0.074 |
| Achromatopsia (no color) | #343434 | 0.088 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #312E61
#312E61
oklch(33.3% 0.087 283.2)
- #3D3700
#3D3700
oklch(33.3% 0.07 102.7)
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 #312E61, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Prussian Blue #1D3557 ΔE 0.040
- Marine #042E60 ΔE 0.052
- Marine Blue #01386A ΔE 0.053
- Space Cadet #2B2D42 ΔE 0.057
- Gunmetal #293241 ΔE 0.064
- Dark Blue Grey #1F3B4D ΔE 0.064
- Twilight Blue #0A437A ΔE 0.073
- Midnight Blue #191970 ΔE 0.075
Use #312E61 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.