#311E4B
Closest named color: Space Cadet (#2B2D42). oklch(28.4% 0.081 300.9), rgb(49, 30, 75).
Aa
White text reads best on this color (14.81:1).
About this color
#311E4B is a dark, moderately saturated purple. In OKLCH its lightness is 28%, its chroma 0.081 and its hue 301°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Space Cadet (#2B2D42), ΔE 0.052 away. White text reads best on it, at 14.81:1.
| Hue family | Purples |
| Lightness | dark (28%) |
| Chroma | moderately saturated (0.081) |
| Temperature | in between |
| Nearest name | Space Cadet (#2B2D42) |
| Black text | 1.41:1 |
| White text | 14.81:1 |
Values
| HEX | #311E4B |
| RGB | rgb(49, 30, 75) |
| HSL | hsl(265, 43%, 21%) |
| OKLCH | oklch(28.4% 0.081 300.9) |
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 #311E4B | 14.81:1 | AAA | Lc -104.3 | Preferred for body text |
| Black text on #311E4B | 1.41:1 | Fails | Lc 0.0 | Not readable |
| #311E4B text on white | 14.81:1 | AAA | Lc 101.5 | Preferred for body text |
| #311E4B text on black | 1.41:1 | 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
#F7F4FD
oklch(97.2% 0.012 301.3)
-
Step 100
100
#EDE6FA
oklch(93.6% 0.028 301.7)
-
Step 200
200
#DFD2F8
oklch(88.6% 0.053 300.9)
-
Step 300
300
#CBB3F5
oklch(81% 0.095 301)
-
Step 400
400
#B187F0
oklch(70.6% 0.154 301)
-
Step 500
500
#9F65EB
oklch(63.1% 0.196 300.9)
-
Step 600
600
#8B47D9
oklch(55.6% 0.213 301)
-
Step 700
700
#7637BD
oklch(49.2% 0.198 300.7)
-
Step 800
800
#602F99
oklch(42.8% 0.165 300.8)
-
Step 900
900
#4E2B79
oklch(37.6% 0.128 301.1)
-
Step 950
950 (this color)
#311E4B
oklch(28.4% 0.081 300.9)
#311E4B 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) | #0D274D | 0.058 |
| Deuteranopia (no green cones) | #13274A | 0.053 |
| Tritanopia (no blue cones) | #2C2731 | 0.062 |
| Achromatopsia (no color) | #282828 | 0.081 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #311E4B
#311E4B
oklch(28.4% 0.081 300.9)
- #252E00
#252E00
oklch(28.2% 0.067 120.6)
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 #311E4B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Space Cadet #2B2D42 ΔE 0.052
- Dark Purple #35063E ΔE 0.055
- Oxford Blue #1B263B ΔE 0.056
- Eggplant Purple #430541 ΔE 0.061
- Eggplant #380835 ΔE 0.061
- Deep Purple #36013F ΔE 0.063
- Aubergine #3D0734 ΔE 0.064
- Deep Violet #490648 ΔE 0.064
Use #311E4B 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.