#311A42
Closest named color: Dark Purple (#35063E). oklch(27% 0.076 308.7), rgb(49, 26, 66).
Aa
White text reads best on this color (15.47:1).
About this color
#311A42 is a dark, moderately saturated purple. In OKLCH its lightness is 27%, its chroma 0.076 and its hue 309°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Purple (#35063E), ΔE 0.042 away. White text reads best on it, at 15.47:1.
| Hue family | Purples |
| Lightness | dark (27%) |
| Chroma | moderately saturated (0.076) |
| Temperature | in between |
| Nearest name | Dark Purple (#35063E) |
| Black text | 1.35:1 |
| White text | 15.47:1 |
Values
| HEX | #311A42 |
| RGB | rgb(49, 26, 66) |
| HSL | hsl(275, 43%, 18%) |
| OKLCH | oklch(27% 0.076 308.7) |
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 #311A42 | 15.47:1 | AAA | Lc -104.9 | Preferred for body text |
| Black text on #311A42 | 1.35:1 | Fails | Lc 0.0 | Not readable |
| #311A42 text on white | 15.47:1 | AAA | Lc 102.2 | Preferred for body text |
| #311A42 text on black | 1.35:1 | 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
#F8F3FC
oklch(97.1% 0.013 310.5)
-
Step 100
100
#EFE6F7
oklch(93.7% 0.025 309.4)
-
Step 200
200
#E3D1F3
oklch(88.6% 0.05 309.1)
-
Step 300
300
#D1B1ED
oklch(80.8% 0.09 308.7)
-
Step 400
400
#BA86E4
oklch(70.7% 0.143 308.6)
-
Step 500
500
#A964DC
oklch(63.1% 0.183 308.6)
-
Step 600
600
#9547CA
oklch(55.7% 0.199 308.7)
-
Step 700
700
#7F37AE
oklch(49.1% 0.185 308.9)
-
Step 800
800
#672F8D
oklch(42.7% 0.153 308.7)
-
Step 900
900
#542B71
oklch(37.8% 0.12 308.8)
-
Step 950
950 (this color)
#311A42
oklch(27% 0.076 308.7)
#311A42 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) | #0E2343 | 0.062 |
| Deuteranopia (no green cones) | #152541 | 0.057 |
| Tritanopia (no blue cones) | #2F212B | 0.053 |
| Achromatopsia (no color) | #242424 | 0.076 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #311A42
#311A42
oklch(27% 0.076 308.7)
- #1B2D00
#1B2D00
oklch(27.1% 0.072 129.3)
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 #311A42, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Purple #35063E ΔE 0.042
- Eggplant #380835 ΔE 0.045
- Aubergine #3D0734 ΔE 0.050
- Deep Purple #36013F ΔE 0.051
- Eggplant Purple #430541 ΔE 0.053
- Oxford Blue #1B263B ΔE 0.055
- Space Cadet #2B2D42 ΔE 0.058
- Deep Violet #490648 ΔE 0.061
Use #311A42 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.