#310B39
Closest named color: Dark Purple (#35063E). oklch(24% 0.091 320.1), rgb(49, 11, 57).
Aa
White text reads best on this color (16.96:1).
About this color
#310B39 is a very dark, moderately saturated purple. In OKLCH its lightness is 24%, its chroma 0.091 and its hue 320°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Purple (#35063E), ΔE 0.015 away. White text reads best on it, at 16.96:1.
| Hue family | Purples |
| Lightness | very dark (24%) |
| Chroma | moderately saturated (0.091) |
| Temperature | in between |
| Nearest name | Dark Purple (#35063E) |
| Black text | 1.23:1 |
| White text | 16.96:1 |
Values
| HEX | #310B39 |
| RGB | rgb(49, 11, 57) |
| HSL | hsl(290, 68%, 13%) |
| OKLCH | oklch(24% 0.091 320.1) |
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 #310B39 | 16.96:1 | AAA | Lc -105.9 | Preferred for body text |
| Black text on #310B39 | 1.23:1 | Fails | Lc 0.0 | Not readable |
| #310B39 text on white | 16.96:1 | AAA | Lc 103.4 | Preferred for body text |
| #310B39 text on black | 1.23:1 | 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
#FAF3FC
oklch(97.2% 0.014 318.7)
-
Step 100
100
#F4E4F7
oklch(93.7% 0.03 320.9)
-
Step 200
200
#EBCDF2
oklch(88.5% 0.059 319.8)
-
Step 300
300
#E0AAEC
oklch(80.9% 0.108 320.1)
-
Step 400
400
#CF79E2
oklch(70.8% 0.172 320.2)
-
Step 500
500
#C14FD9
oklch(63.1% 0.219 320.3)
-
Step 600
600
#AC28C7
oklch(55.6% 0.239 319.9)
-
Step 700
700
#9416AC
oklch(49.2% 0.222 320.1)
-
Step 800
800
#78188B
oklch(42.7% 0.184 320.1)
-
Step 900
900
#611E6F
oklch(37.7% 0.143 320.2)
-
Step 950
950 (this color)
#310B39
oklch(24% 0.091 320.1)
#310B39 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) | #001A3A | 0.092 |
| Deuteranopia (no green cones) | #0F1E38 | 0.079 |
| Tritanopia (no blue cones) | #311321 | 0.054 |
| Achromatopsia (no color) | #1C1C1C | 0.092 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #310B39
#310B39
oklch(24% 0.091 320.1)
- #052700
#052700
oklch(23.9% 0.077 140.3)
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 #310B39, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Purple #35063E ΔE 0.015
- Eggplant #380835 ΔE 0.019
- Deep Purple #36013F ΔE 0.023
- Aubergine #3D0734 ΔE 0.031
- Very Dark Purple #2A0134 ΔE 0.031
- Midnight Purple #280137 ΔE 0.034
- Dark Plum #3F012C ΔE 0.043
- Eggplant Purple #430541 ΔE 0.044
Use #310B39 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.