#312257
Closest named color: Space Cadet (#2B2D42). oklch(30.1% 0.092 293.1), rgb(49, 34, 87).
Aa
White text reads best on this color (14.02:1).
About this color
#312257 is a dark, moderately saturated purple. In OKLCH its lightness is 30%, its chroma 0.092 and its hue 293°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Space Cadet (#2B2D42), ΔE 0.056 away. White text reads best on it, at 14.02:1.
| Hue family | Purples |
| Lightness | dark (30%) |
| Chroma | moderately saturated (0.092) |
| Temperature | in between |
| Nearest name | Space Cadet (#2B2D42) |
| Black text | 1.49:1 |
| White text | 14.02:1 |
Values
| HEX | #312257 |
| RGB | rgb(49, 34, 87) |
| HSL | hsl(257, 44%, 24%) |
| OKLCH | oklch(30.1% 0.092 293.1) |
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 #312257 | 14.02:1 | AAA | Lc -103.5 | Preferred for body text |
| Black text on #312257 | 1.49:1 | Fails | Lc 0.0 | Not readable |
| #312257 text on white | 14.02:1 | AAA | Lc 100.5 | Preferred for body text |
| #312257 text on black | 1.49:1 | 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 950.
-
Step 50
50
#F5F4FF
oklch(97.1% 0.015 290.3)
-
Step 100
100
#EAE6FE
oklch(93.5% 0.032 293.4)
-
Step 200
200
#DAD2FE
oklch(88.4% 0.061 293.5)
-
Step 300
300
#C3B4FF
oklch(80.9% 0.105 293.1)
-
Step 400
400
#A689FF
oklch(70.7% 0.169 292.9)
-
Step 500
500
#9364FF
oklch(63.1% 0.22 293)
-
Step 600
600
#8042F0
oklch(55.7% 0.242 293.1)
-
Step 700
700
#6C31D1
oklch(49.1% 0.225 292.9)
-
Step 800
800
#582BA9
oklch(42.7% 0.187 293.1)
-
Step 900
900
#482A86
oklch(37.8% 0.145 293.1)
-
Step 950
950 (this color)
#312257
oklch(30.1% 0.092 293.1)
#312257 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) | #072C59 | 0.058 |
| Deuteranopia (no green cones) | #0B2B56 | 0.056 |
| Tritanopia (no blue cones) | #272D38 | 0.074 |
| Achromatopsia (no color) | #2C2C2C | 0.092 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #312257
#312257
oklch(30.1% 0.092 293.1)
- #2E3100
#2E3100
oklch(30% 0.067 113.4)
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 #312257, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Space Cadet #2B2D42 ΔE 0.056
- Prussian Blue #1D3557 ΔE 0.061
- Marine #042E60 ΔE 0.061
- Midnight Blue #191970 ΔE 0.067
- Oxford Blue #1B263B ΔE 0.067
- Dark Indigo #1F0954 ΔE 0.070
- Gunmetal #293241 ΔE 0.070
- Deep Violet #490648 ΔE 0.074
Use #312257 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.