#312149
Closest named color: Space Cadet (#2B2D42). oklch(28.8% 0.072 300.4), rgb(49, 33, 73).
Aa
White text reads best on this color (14.53:1).
About this color
#312149 is a dark, moderately saturated purple. In OKLCH its lightness is 29%, its chroma 0.072 and its hue 300°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Space Cadet (#2B2D42), ΔE 0.043 away. White text reads best on it, at 14.53:1.
| Hue family | Purples |
| Lightness | dark (29%) |
| Chroma | moderately saturated (0.072) |
| Temperature | in between |
| Nearest name | Space Cadet (#2B2D42) |
| Black text | 1.44:1 |
| White text | 14.53:1 |
Values
| HEX | #312149 |
| RGB | rgb(49, 33, 73) |
| HSL | hsl(264, 38%, 21%) |
| OKLCH | oklch(28.8% 0.072 300.4) |
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 #312149 | 14.53:1 | AAA | Lc -104.1 | Preferred for body text |
| Black text on #312149 | 1.44:1 | Fails | Lc 0.0 | Not readable |
| #312149 text on white | 14.53:1 | AAA | Lc 101.2 | Preferred for body text |
| #312149 text on black | 1.44:1 | 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
#F6F4FC
oklch(97.1% 0.011 297.6)
-
Step 100
100
#ECE6F8
oklch(93.5% 0.025 301.1)
-
Step 200
200
#DED3F5
oklch(88.6% 0.048 300.2)
-
Step 300
300
#C9B4F0
oklch(80.8% 0.086 300.5)
-
Step 400
400
#AF8BE9
oklch(70.7% 0.138 300.6)
-
Step 500
500
#9C6BE2
oklch(63.2% 0.176 300.5)
-
Step 600
600
#874FCF
oklch(55.5% 0.19 300.4)
-
Step 700
700
#733FB4
oklch(49.2% 0.178 300.4)
-
Step 800
800
#5D3591
oklch(42.7% 0.146 300.3)
-
Step 900
900
#4C2F74
oklch(37.6% 0.115 300.4)
-
Step 950
950 (this color)
#312149
oklch(28.8% 0.072 300.4)
#312149 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) | #14294A | 0.050 |
| Deuteranopia (no green cones) | #182948 | 0.046 |
| Tritanopia (no blue cones) | #2C2831 | 0.056 |
| Achromatopsia (no color) | #292929 | 0.073 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #312149
#312149
oklch(28.8% 0.072 300.4)
- #273000
#273000
oklch(29% 0.069 120.3)
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 #312149, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Space Cadet #2B2D42 ΔE 0.043
- Oxford Blue #1B263B ΔE 0.051
- Gunmetal #293241 ΔE 0.060
- Dark Purple #35063E ΔE 0.062
- Dark #1B2431 ΔE 0.063
- Eggplant #380835 ΔE 0.065
- Prussian Blue #1D3557 ΔE 0.065
- Eggplant Purple #430541 ΔE 0.065
Use #312149 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.