#311D4B
Closest named color: Dark Purple (#35063E). oklch(28.2% 0.083 301.3), rgb(49, 29, 75).
Aa
White text reads best on this color (14.91:1).
About this color
#311D4B is a dark, moderately saturated purple. In OKLCH its lightness is 28%, its chroma 0.083 and its hue 301°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Purple (#35063E), ΔE 0.053 away. White text reads best on it, at 14.91:1.
| Hue family | Purples |
| Lightness | dark (28%) |
| Chroma | moderately saturated (0.083) |
| Temperature | in between |
| Nearest name | Dark Purple (#35063E) |
| Black text | 1.40:1 |
| White text | 14.91:1 |
Values
| HEX | #311D4B |
| RGB | rgb(49, 29, 75) |
| HSL | hsl(266, 44%, 20%) |
| OKLCH | oklch(28.2% 0.083 301.3) |
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 #311D4B | 14.91:1 | AAA | Lc -104.4 | Preferred for body text |
| Black text on #311D4B | 1.40:1 | Fails | Lc 0.0 | Not readable |
| #311D4B text on white | 14.91:1 | AAA | Lc 101.6 | Preferred for body text |
| #311D4B text on black | 1.40:1 | 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
#DFD1F8
oklch(88.4% 0.055 301.6)
-
Step 300
300
#CBB2F6
oklch(80.9% 0.098 301.1)
-
Step 400
400
#B286F2
oklch(70.6% 0.158 301.3)
-
Step 500
500
#A063ED
oklch(63% 0.201 301.2)
-
Step 600
600
#8C44DB
oklch(55.5% 0.219 301.4)
-
Step 700
700
#7734BE
oklch(49% 0.203 301.3)
-
Step 800
800
#612D9A
oklch(42.7% 0.168 301.4)
-
Step 900
900
#4F2A7A
oklch(37.6% 0.131 301.7)
-
Step 950
950 (this color)
#311D4B
oklch(28.2% 0.083 301.3)
#311D4B 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) | #0B274D | 0.061 |
| Deuteranopia (no green cones) | #11274A | 0.057 |
| Tritanopia (no blue cones) | #2C2630 | 0.063 |
| Achromatopsia (no color) | #272727 | 0.083 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #311D4B
#311D4B
oklch(28.2% 0.083 301.3)
- #242E00
#242E00
oklch(28.2% 0.068 121.7)
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 #311D4B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Purple #35063E ΔE 0.053
- Space Cadet #2B2D42 ΔE 0.055
- Oxford Blue #1B263B ΔE 0.058
- Eggplant Purple #430541 ΔE 0.059
- Eggplant #380835 ΔE 0.059
- Deep Purple #36013F ΔE 0.060
- Aubergine #3D0734 ΔE 0.063
- Deep Violet #490648 ΔE 0.063
Use #311D4B 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.