#310B38
Closest named color: Dark Purple (#35063E). oklch(23.9% 0.09 321), rgb(49, 11, 56).
Aa
White text reads best on this color (16.99:1).
About this color
#310B38 is a very dark, moderately saturated purple. In OKLCH its lightness is 24%, its chroma 0.090 and its hue 321°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Purple (#35063E), ΔE 0.016 away. White text reads best on it, at 16.99:1.
| Hue family | Purples |
| Lightness | very dark (24%) |
| Chroma | moderately saturated (0.090) |
| Temperature | in between |
| Nearest name | Dark Purple (#35063E) |
| Black text | 1.23:1 |
| White text | 16.99:1 |
Values
| HEX | #310B38 |
| RGB | rgb(49, 11, 56) |
| HSL | hsl(291, 67%, 13%) |
| OKLCH | oklch(23.9% 0.09 321) |
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 #310B38 | 16.99:1 | AAA | Lc -105.9 | Preferred for body text |
| Black text on #310B38 | 1.23:1 | Fails | Lc 0.0 | Not readable |
| #310B38 text on white | 16.99:1 | AAA | Lc 103.5 | Preferred for body text |
| #310B38 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
#FAF3FB
oklch(97.2% 0.013 321.9)
-
Step 100
100
#F4E4F7
oklch(93.7% 0.03 320.9)
-
Step 200
200
#ECCDF1
oklch(88.5% 0.059 321.6)
-
Step 300
300
#E0AAEA
oklch(80.9% 0.106 321.1)
-
Step 400
400
#CF79E0
oklch(70.7% 0.17 320.8)
-
Step 500
500
#C250D7
oklch(63.2% 0.217 321.1)
-
Step 600
600
#AD29C4
oklch(55.6% 0.236 321.1)
-
Step 700
700
#9418A9
oklch(49.1% 0.219 321)
-
Step 800
800
#781989
oklch(42.6% 0.182 320.9)
-
Step 900
900
#611E6E
oklch(37.6% 0.142 320.7)
-
Step 950
950 (this color)
#310B38
oklch(23.9% 0.09 321)
#310B38 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) | #001A39 | 0.092 |
| Deuteranopia (no green cones) | #101E37 | 0.078 |
| Tritanopia (no blue cones) | #311320 | 0.055 |
| Achromatopsia (no color) | #1C1C1C | 0.091 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #310B38
#310B38
oklch(23.9% 0.09 321)
- #032700
#032700
oklch(23.8% 0.078 141.2)
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 #310B38, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Purple #35063E ΔE 0.016
- Eggplant #380835 ΔE 0.018
- Deep Purple #36013F ΔE 0.024
- Aubergine #3D0734 ΔE 0.030
- Very Dark Purple #2A0134 ΔE 0.031
- Midnight Purple #280137 ΔE 0.034
- Dark Plum #3F012C ΔE 0.042
- Eggplant Purple #430541 ΔE 0.045
Use #310B38 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.