#312A52
Closest named color: Space Cadet (#2B2D42). oklch(31.4% 0.07 289.8), rgb(49, 42, 82).
Aa
White text reads best on this color (13.26:1).
About this color
#312A52 is a dark, moderately saturated purple. In OKLCH its lightness is 31%, its chroma 0.070 and its hue 290°. Its hue sits on the cool side of the wheel. The nearest named color is Space Cadet (#2B2D42), ΔE 0.035 away. White text reads best on it, at 13.26:1.
| Hue family | Purples |
| Lightness | dark (31%) |
| Chroma | moderately saturated (0.070) |
| Temperature | cool |
| Nearest name | Space Cadet (#2B2D42) |
| Black text | 1.58:1 |
| White text | 13.26:1 |
Values
| HEX | #312A52 |
| RGB | rgb(49, 42, 82) |
| HSL | hsl(251, 32%, 24%) |
| OKLCH | oklch(31.4% 0.07 289.8) |
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 #312A52 | 13.26:1 | AAA | Lc -102.7 | Preferred for body text |
| Black text on #312A52 | 1.58:1 | Fails | Lc 0.0 | Not readable |
| #312A52 text on white | 13.26:1 | AAA | Lc 99.5 | Preferred for body text |
| #312A52 text on black | 1.58:1 | 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
#F5F4FD
oklch(97% 0.012 291.3)
-
Step 100
100
#E9E8F9
oklch(93.7% 0.023 288.7)
-
Step 200
200
#D8D5F6
oklch(88.6% 0.045 289.6)
-
Step 300
300
#BFB8F3
oklch(80.9% 0.083 289.8)
-
Step 400
400
#A091ED
oklch(70.7% 0.133 290.1)
-
Step 500
500
#8A73E7
oklch(63.1% 0.169 289.8)
-
Step 600
600
#7558D6
oklch(55.6% 0.185 289.6)
-
Step 700
700
#6347B9
oklch(49.1% 0.172 289.9)
-
Step 800
800
#503B96
oklch(42.6% 0.143 289.6)
-
Step 900
900
#423477
oklch(37.7% 0.11 289.7)
-
Step 950
950 (this color)
#312A52
oklch(31.4% 0.07 289.8)
#312A52 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) | #1C3053 | 0.035 |
| Deuteranopia (no green cones) | #1D2F51 | 0.033 |
| Tritanopia (no blue cones) | #29323A | 0.058 |
| Achromatopsia (no color) | #303030 | 0.070 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #312A52
#312A52
oklch(31.4% 0.07 289.8)
- #343400
#343400
oklch(31.5% 0.069 109.8)
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 #312A52, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Space Cadet #2B2D42 ΔE 0.035
- Prussian Blue #1D3557 ΔE 0.041
- Gunmetal #293241 ΔE 0.047
- Marine #042E60 ΔE 0.057
- Oxford Blue #1B263B ΔE 0.058
- Dark Blue Grey #1F3B4D ΔE 0.060
- Marine Blue #01386A ΔE 0.068
- Onyx #343A40 ΔE 0.069
Use #312A52 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.