#312E40
Closest named color: Space Cadet (#2B2D42). oklch(31.2% 0.032 292.1), rgb(49, 46, 64).
Aa
White text reads best on this color (13.16:1).
About this color
#312E40 is a dark, muted purple. In OKLCH its lightness is 31%, its chroma 0.032 and its hue 292°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Space Cadet (#2B2D42), ΔE 0.012 away. White text reads best on it, at 13.16:1.
| Hue family | Purples |
| Lightness | dark (31%) |
| Chroma | muted (0.032) |
| Temperature | in between |
| Nearest name | Space Cadet (#2B2D42) |
| Black text | 1.59:1 |
| White text | 13.16:1 |
Values
| HEX | #312E40 |
| RGB | rgb(49, 46, 64) |
| HSL | hsl(250, 16%, 22%) |
| OKLCH | oklch(31.2% 0.032 292.1) |
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 #312E40 | 13.16:1 | AAA | Lc -102.7 | Preferred for body text |
| Black text on #312E40 | 1.59:1 | Fails | Lc 0.0 | Not readable |
| #312E40 text on white | 13.16:1 | AAA | Lc 99.5 | Preferred for body text |
| #312E40 text on black | 1.59:1 | 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
#F5F5F9
oklch(97.1% 0.005 286.3)
-
Step 100
100
#EAE9F1
oklch(93.7% 0.011 291.9)
-
Step 200
200
#D9D7E6
oklch(88.5% 0.021 292.1)
-
Step 300
300
#C1BDD8
oklch(81% 0.038 292.3)
-
Step 400
400
#A19AC4
oklch(70.7% 0.061 292.4)
-
Step 500
500
#8A81B5
oklch(63.1% 0.078 292)
-
Step 600
600
#746AA1
oklch(55.6% 0.085 291.7)
-
Step 700
700
#62588A
oklch(49.1% 0.079 292.4)
-
Step 800
800
#504870
oklch(42.7% 0.066 292.6)
-
Step 900
900
#423D5A
oklch(37.8% 0.049 291.8)
-
Step 950
950 (this color)
#312E40
oklch(31.2% 0.032 292.1)
#312E40 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) | #2A3041 | 0.013 |
| Deuteranopia (no green cones) | #2A303F | 0.013 |
| Tritanopia (no blue cones) | #2E3134 | 0.028 |
| Achromatopsia (no color) | #303030 | 0.032 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #312E40
#312E40
oklch(31.2% 0.032 292.1)
- #31331F
#31331F
oklch(31.3% 0.033 113)
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 #312E40, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Space Cadet #2B2D42 ΔE 0.012
- Gunmetal #293241 ΔE 0.017
- Onyx #343A40 ΔE 0.041
- Dark Blue Grey #1F3B4D ΔE 0.046
- Prussian Blue #1D3557 ΔE 0.048
- Oxford Blue #1B263B ΔE 0.048
- Jet #212529 ΔE 0.056
- Midnight Green #073B4C ΔE 0.057
Use #312E40 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.