#311D4D
Closest named color: Dark Purple (#35063E). oklch(28.4% 0.086 300.2), rgb(49, 29, 77).
Aa
White text reads best on this color (14.85:1).
About this color
#311D4D is a dark, moderately saturated purple. In OKLCH its lightness is 28%, its chroma 0.086 and its hue 300°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Purple (#35063E), ΔE 0.054 away. White text reads best on it, at 14.85:1.
| Hue family | Purples |
| Lightness | dark (28%) |
| Chroma | moderately saturated (0.086) |
| Temperature | in between |
| Nearest name | Dark Purple (#35063E) |
| Black text | 1.41:1 |
| White text | 14.85:1 |
Values
| HEX | #311D4D |
| RGB | rgb(49, 29, 77) |
| HSL | hsl(265, 45%, 21%) |
| OKLCH | oklch(28.4% 0.086 300.2) |
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 #311D4D | 14.85:1 | AAA | Lc -104.4 | Preferred for body text |
| Black text on #311D4D | 1.41:1 | Fails | Lc 0.0 | Not readable |
| #311D4D text on white | 14.85:1 | AAA | Lc 101.5 | Preferred for body text |
| #311D4D 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
#EDE6FB
oklch(93.7% 0.029 301)
-
Step 200
200
#DFD1FA
oklch(88.5% 0.058 300.8)
-
Step 300
300
#CBB2F9
oklch(81% 0.102 300.3)
-
Step 400
400
#B186F6
oklch(70.7% 0.163 300)
-
Step 500
500
#9F62F1
oklch(63% 0.207 300.2)
-
Step 600
600
#8B42E0
oklch(55.5% 0.226 300.1)
-
Step 700
700
#7632C2
oklch(49% 0.209 300.1)
-
Step 800
800
#602B9D
oklch(42.6% 0.174 300.3)
-
Step 900
900
#4E297D
oklch(37.6% 0.136 300.1)
-
Step 950
950 (this color)
#311D4D
oklch(28.4% 0.086 300.2)
#311D4D 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) | #08274F | 0.063 |
| Deuteranopia (no green cones) | #0F274C | 0.058 |
| Tritanopia (no blue cones) | #2B2731 | 0.067 |
| Achromatopsia (no color) | #272727 | 0.086 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #311D4D
#311D4D
oklch(28.4% 0.086 300.2)
- #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 #311D4D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Purple #35063E ΔE 0.054
- Space Cadet #2B2D42 ΔE 0.056
- Oxford Blue #1B263B ΔE 0.060
- Eggplant Purple #430541 ΔE 0.060
- Deep Purple #36013F ΔE 0.061
- Eggplant #380835 ΔE 0.061
- Dark Indigo #1F0954 ΔE 0.063
- Deep Violet #490648 ΔE 0.064
Use #311D4D 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.