#312157
Closest named color: Space Cadet (#2B2D42). oklch(29.9% 0.094 293.6), rgb(49, 33, 87).
Aa
White text reads best on this color (14.13:1).
About this color
#312157 is a dark, moderately saturated purple. In OKLCH its lightness is 30%, its chroma 0.094 and its hue 294°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Space Cadet (#2B2D42), ΔE 0.058 away. White text reads best on it, at 14.13:1.
| Hue family | Purples |
| Lightness | dark (30%) |
| Chroma | moderately saturated (0.094) |
| Temperature | in between |
| Nearest name | Space Cadet (#2B2D42) |
| Black text | 1.48:1 |
| White text | 14.13:1 |
Values
| HEX | #312157 |
| RGB | rgb(49, 33, 87) |
| HSL | hsl(258, 45%, 24%) |
| OKLCH | oklch(29.9% 0.094 293.6) |
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 #312157 | 14.13:1 | AAA | Lc -103.6 | Preferred for body text |
| Black text on #312157 | 1.48:1 | Fails | Lc 0.0 | Not readable |
| #312157 text on white | 14.13:1 | AAA | Lc 100.6 | Preferred for body text |
| #312157 text on black | 1.48:1 | 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
#F6F4FF
oklch(97.2% 0.015 294.5)
-
Step 100
100
#EAE6FE
oklch(93.5% 0.032 293.4)
-
Step 200
200
#DAD2FF
oklch(88.5% 0.062 293.2)
-
Step 300
300
#C4B4FF
oklch(81% 0.106 293.7)
-
Step 400
400
#A788FF
oklch(70.7% 0.17 293.6)
-
Step 500
500
#9463FF
oklch(63.1% 0.221 293.5)
-
Step 600
600
#813FF1
oklch(55.5% 0.246 293.6)
-
Step 700
700
#6E2ED2
oklch(49.1% 0.229 293.8)
-
Step 800
800
#5929AA
oklch(42.7% 0.19 293.6)
-
Step 900
900
#482986
oklch(37.7% 0.147 293.4)
-
Step 950
950 (this color)
#312157
oklch(29.9% 0.094 293.6)
#312157 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) | #042C59 | 0.061 |
| Deuteranopia (no green cones) | #092A56 | 0.058 |
| Tritanopia (no blue cones) | #272D38 | 0.076 |
| Achromatopsia (no color) | #2B2B2B | 0.094 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #312157
#312157
oklch(29.9% 0.094 293.6)
- #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 #312157, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Space Cadet #2B2D42 ΔE 0.058
- Marine #042E60 ΔE 0.063
- Prussian Blue #1D3557 ΔE 0.063
- Midnight Blue #191970 ΔE 0.066
- Dark Indigo #1F0954 ΔE 0.068
- Oxford Blue #1B263B ΔE 0.068
- Dark Purple #35063E ΔE 0.072
- Deep Violet #490648 ΔE 0.072
Use #312157 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.