#312B4E
Closest named color: Space Cadet (#2B2D42). oklch(31.3% 0.062 290.2), rgb(49, 43, 78).
Aa
White text reads best on this color (13.23:1).
About this color
#312B4E is a dark, muted purple. In OKLCH its lightness is 31%, its chroma 0.062 and its hue 290°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Space Cadet (#2B2D42), ΔE 0.027 away. White text reads best on it, at 13.23:1.
| Hue family | Purples |
| Lightness | dark (31%) |
| Chroma | muted (0.062) |
| Temperature | in between |
| Nearest name | Space Cadet (#2B2D42) |
| Black text | 1.58:1 |
| White text | 13.23:1 |
Values
| HEX | #312B4E |
| RGB | rgb(49, 43, 78) |
| HSL | hsl(250, 29%, 24%) |
| OKLCH | oklch(31.3% 0.062 290.2) |
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 #312B4E | 13.23:1 | AAA | Lc -102.7 | Preferred for body text |
| Black text on #312B4E | 1.58:1 | Fails | Lc 0.0 | Not readable |
| #312B4E text on white | 13.23:1 | AAA | Lc 99.5 | Preferred for body text |
| #312B4E 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
#F5F4FC
oklch(97% 0.011 292)
-
Step 100
100
#E9E8F7
oklch(93.6% 0.02 289.1)
-
Step 200
200
#D8D5F3
oklch(88.5% 0.041 290.1)
-
Step 300
300
#BFB9ED
oklch(80.8% 0.073 289.9)
-
Step 400
400
#A093E4
oklch(70.6% 0.117 290.4)
-
Step 500
500
#8A77DC
oklch(63.2% 0.148 290.1)
-
Step 600
600
#755DCA
oklch(55.6% 0.162 290.2)
-
Step 700
700
#624CAF
oklch(49.1% 0.151 289.9)
-
Step 800
800
#503F8D
oklch(42.7% 0.124 290.2)
-
Step 900
900
#423671
oklch(37.7% 0.098 290.3)
-
Step 950
950 (this color)
#312B4E
oklch(31.3% 0.062 290.2)
#312B4E 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) | #20304F | 0.029 |
| Deuteranopia (no green cones) | #202F4D | 0.029 |
| Tritanopia (no blue cones) | #2A3238 | 0.053 |
| Achromatopsia (no color) | #303030 | 0.062 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #312B4E
#312B4E
oklch(31.3% 0.062 290.2)
- #333407
#333407
oklch(31.4% 0.063 110.8)
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 #312B4E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Space Cadet #2B2D42 ΔE 0.027
- Gunmetal #293241 ΔE 0.039
- Prussian Blue #1D3557 ΔE 0.040
- Oxford Blue #1B263B ΔE 0.054
- Dark Blue Grey #1F3B4D ΔE 0.055
- Marine #042E60 ΔE 0.060
- Onyx #343A40 ΔE 0.062
- Midnight Green #073B4C ΔE 0.066
Use #312B4E 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.