#310B40
Closest named color: Dark Purple (#35063E). oklch(24.5% 0.098 314.4), rgb(49, 11, 64).
Aa
White text reads best on this color (16.76:1).
About this color
#310B40 is a very dark, moderately saturated purple. In OKLCH its lightness is 25%, its chroma 0.098 and its hue 314°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Purple (#35063E), ΔE 0.013 away. White text reads best on it, at 16.76:1.
| Hue family | Purples |
| Lightness | very dark (25%) |
| Chroma | moderately saturated (0.098) |
| Temperature | in between |
| Nearest name | Dark Purple (#35063E) |
| Black text | 1.25:1 |
| White text | 16.76:1 |
Values
| HEX | #310B40 |
| RGB | rgb(49, 11, 64) |
| HSL | hsl(283, 71%, 15%) |
| OKLCH | oklch(24.5% 0.098 314.4) |
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 #310B40 | 16.76:1 | AAA | Lc -105.7 | Preferred for body text |
| Black text on #310B40 | 1.25:1 | Fails | Lc 0.0 | Not readable |
| #310B40 text on white | 16.76:1 | AAA | Lc 103.2 | Preferred for body text |
| #310B40 text on black | 1.25:1 | 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
#F9F3FD
oklch(97.2% 0.015 312.2)
-
Step 100
100
#F2E4FA
oklch(93.6% 0.033 313.5)
-
Step 200
200
#E9CDF7
oklch(88.5% 0.064 314.5)
-
Step 300
300
#DCAAF5
oklch(80.9% 0.116 314.1)
-
Step 400
400
#CA77F0
oklch(70.6% 0.187 314.2)
-
Step 500
500
#BC4BEA
oklch(63.1% 0.238 314.4)
-
Step 600
600
#A81DD8
oklch(55.6% 0.259 314.5)
-
Step 700
700
#9004BC
oklch(49.2% 0.241 314.3)
-
Step 800
800
#751098
oklch(42.7% 0.2 314.4)
-
Step 900
900
#5E1B79
oklch(37.7% 0.155 314)
-
Step 950
950 (this color)
#310B40
oklch(24.5% 0.098 314.4)
#310B40 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) | #001B41 | 0.089 |
| Deuteranopia (no green cones) | #081E3F | 0.083 |
| Tritanopia (no blue cones) | #301624 | 0.064 |
| Achromatopsia (no color) | #1D1D1D | 0.099 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #310B40
#310B40
oklch(24.5% 0.098 314.4)
- #102700
#102700
oklch(24.4% 0.071 134.6)
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 #310B40, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Purple #35063E ΔE 0.013
- Deep Purple #36013F ΔE 0.020
- Eggplant #380835 ΔE 0.028
- Very Dark Purple #2A0134 ΔE 0.036
- Midnight Purple #280137 ΔE 0.036
- Aubergine #3D0734 ΔE 0.038
- Eggplant Purple #430541 ΔE 0.042
- Dark Plum #3F012C ΔE 0.053
Use #310B40 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.