#312D49
Closest named color: Space Cadet (#2B2D42). oklch(31.5% 0.05 289.8), rgb(49, 45, 73).
Aa
White text reads best on this color (13.10:1).
About this color
#312D49 is a dark, muted purple. In OKLCH its lightness is 31%, its chroma 0.050 and its hue 290°. Its hue sits on the cool side of the wheel. The nearest named color is Space Cadet (#2B2D42), ΔE 0.017 away. White text reads best on it, at 13.10:1.
| Hue family | Purples |
| Lightness | dark (31%) |
| Chroma | muted (0.050) |
| Temperature | cool |
| Nearest name | Space Cadet (#2B2D42) |
| Black text | 1.60:1 |
| White text | 13.10:1 |
Values
| HEX | #312D49 |
| RGB | rgb(49, 45, 73) |
| HSL | hsl(249, 24%, 23%) |
| OKLCH | oklch(31.5% 0.05 289.8) |
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 #312D49 | 13.10:1 | AAA | Lc -102.6 | Preferred for body text |
| Black text on #312D49 | 1.60:1 | Fails | Lc 0.0 | Not readable |
| #312D49 text on white | 13.10:1 | AAA | Lc 99.4 | Preferred for body text |
| #312D49 text on black | 1.60:1 | 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
#F5F5FB
oklch(97.2% 0.008 286.3)
-
Step 100
100
#E9E8F5
oklch(93.6% 0.017 289.6)
-
Step 200
200
#D8D6EE
oklch(88.5% 0.033 289.5)
-
Step 300
300
#BFBBE5
oklch(80.9% 0.059 289.4)
-
Step 400
400
#9F97D8
oklch(70.8% 0.094 289.4)
-
Step 500
500
#897CCD
oklch(63.2% 0.12 289.9)
-
Step 600
600
#7364BA
oklch(55.7% 0.13 289.5)
-
Step 700
700
#6152A0
oklch(49.1% 0.122 290)
-
Step 800
800
#4F4482
oklch(42.8% 0.1 289.6)
-
Step 900
900
#413968
oklch(37.6% 0.079 289.9)
-
Step 950
950 (this color)
#312D49
oklch(31.5% 0.05 289.8)
#312D49 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) | #25314A | 0.022 |
| Deuteranopia (no green cones) | #253048 | 0.021 |
| Tritanopia (no blue cones) | #2B3237 | 0.043 |
| Achromatopsia (no color) | #303030 | 0.050 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #312D49
#312D49
oklch(31.5% 0.05 289.8)
- #333414
#333414
oklch(31.6% 0.05 110.6)
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 #312D49, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Space Cadet #2B2D42 ΔE 0.017
- Gunmetal #293241 ΔE 0.028
- Prussian Blue #1D3557 ΔE 0.039
- Dark Blue Grey #1F3B4D ΔE 0.048
- Onyx #343A40 ΔE 0.051
- Oxford Blue #1B263B ΔE 0.051
- Midnight Green #073B4C ΔE 0.060
- Dark #1B2431 ΔE 0.064
Use #312D49 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.