#311C50
Closest named color: Dark Purple (#35063E). oklch(28.4% 0.092 299.1), rgb(49, 28, 80).
Aa
White text reads best on this color (14.86:1).
About this color
#311C50 is a dark, moderately saturated purple. In OKLCH its lightness is 28%, its chroma 0.092 and its hue 299°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Purple (#35063E), ΔE 0.055 away. White text reads best on it, at 14.86:1.
| Hue family | Purples |
| Lightness | dark (28%) |
| Chroma | moderately saturated (0.092) |
| Temperature | in between |
| Nearest name | Dark Purple (#35063E) |
| Black text | 1.41:1 |
| White text | 14.86:1 |
Values
| HEX | #311C50 |
| RGB | rgb(49, 28, 80) |
| HSL | hsl(264, 48%, 21%) |
| OKLCH | oklch(28.4% 0.092 299.1) |
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 #311C50 | 14.86:1 | AAA | Lc -104.3 | Preferred for body text |
| Black text on #311C50 | 1.41:1 | Fails | Lc 0.0 | Not readable |
| #311C50 text on white | 14.86:1 | AAA | Lc 101.5 | Preferred for body text |
| #311C50 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
#F7F3FE
oklch(97% 0.015 302.6)
-
Step 100
100
#ECE6FD
oklch(93.6% 0.031 297.7)
-
Step 200
200
#DED1FC
oklch(88.5% 0.06 299)
-
Step 300
300
#CAB1FD
oklch(80.9% 0.108 299.1)
-
Step 400
400
#B184FC
oklch(70.7% 0.173 299.2)
-
Step 500
500
#9F5EFA
oklch(63.1% 0.223 299.1)
-
Step 600
600
#8B3CE9
oklch(55.6% 0.242 299)
-
Step 700
700
#772BCA
oklch(49.1% 0.225 299.4)
-
Step 800
800
#6027A4
oklch(42.7% 0.186 298.9)
-
Step 900
900
#4E2782
oklch(37.7% 0.145 298.9)
-
Step 950
950 (this color)
#311C50
oklch(28.4% 0.092 299.1)
#311C50 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) | #022752 | 0.068 |
| Deuteranopia (no green cones) | #0A274F | 0.063 |
| Tritanopia (no blue cones) | #2A2733 | 0.070 |
| Achromatopsia (no color) | #272727 | 0.093 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #311C50
#311C50
oklch(28.4% 0.092 299.1)
- #262E00
#262E00
oklch(28.3% 0.067 119.5)
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 #311C50, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Purple #35063E ΔE 0.055
- Dark Indigo #1F0954 ΔE 0.059
- Eggplant Purple #430541 ΔE 0.061
- Space Cadet #2B2D42 ΔE 0.061
- Deep Purple #36013F ΔE 0.061
- Deep Violet #490648 ΔE 0.063
- Eggplant #380835 ΔE 0.064
- Oxford Blue #1B263B ΔE 0.065
Use #311C50 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.