#311959
Closest named color: Dark Indigo (#1F0954). oklch(28.7% 0.109 296), rgb(49, 25, 89).
Aa
White text reads best on this color (14.85:1).
About this color
#311959 is a dark, moderately saturated purple. In OKLCH its lightness is 29%, its chroma 0.109 and its hue 296°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Indigo (#1F0954), ΔE 0.053 away. White text reads best on it, at 14.85:1.
| Hue family | Purples |
| Lightness | dark (29%) |
| Chroma | moderately saturated (0.109) |
| Temperature | in between |
| Nearest name | Dark Indigo (#1F0954) |
| Black text | 1.41:1 |
| White text | 14.85:1 |
Values
| HEX | #311959 |
| RGB | rgb(49, 25, 89) |
| HSL | hsl(263, 56%, 22%) |
| OKLCH | oklch(28.7% 0.109 296) |
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 #311959 | 14.85:1 | AAA | Lc -104.2 | Preferred for body text |
| Black text on #311959 | 1.41:1 | Fails | Lc 0.0 | Not readable |
| #311959 text on white | 14.85:1 | AAA | Lc 101.3 | Preferred for body text |
| #311959 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
#F6F4FF
oklch(97.2% 0.015 294.5)
-
Step 100
100
#EBE6FF
oklch(93.6% 0.034 294.9)
-
Step 200
200
#DCD1FF
oklch(88.4% 0.064 296)
-
Step 300
300
#C7B2FF
oklch(80.9% 0.109 296.4)
-
Step 400
400
#AC86FF
oklch(70.8% 0.174 296.2)
-
Step 500
500
#9960FF
oklch(63.1% 0.225 295.8)
-
Step 600
600
#8A27FF
oklch(55.6% 0.28 296.1)
-
Step 700
700
#7603E2
oklch(49.1% 0.267 295.8)
-
Step 800
800
#6012B6
oklch(42.7% 0.221 296.1)
-
Step 900
900
#4E1E90
oklch(37.8% 0.172 296.1)
-
Step 950
950 (this color)
#311959
oklch(28.7% 0.109 296)
#311959 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) | #00285B | 0.071 |
| Deuteranopia (no green cones) | #002758 | 0.071 |
| Tritanopia (no blue cones) | #272836 | 0.085 |
| Achromatopsia (no color) | #272727 | 0.110 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #311959
#311959
oklch(28.7% 0.109 296)
- #292E00
#292E00
oklch(28.6% 0.065 116)
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 #311959, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Indigo #1F0954 ΔE 0.053
- Midnight Blue #191970 ΔE 0.061
- Dark Purple #35063E ΔE 0.062
- Deep Purple #36013F ΔE 0.066
- Eggplant Purple #430541 ΔE 0.067
- Deep Violet #490648 ΔE 0.067
- Royal Purple #4B006E ΔE 0.070
- Plum Purple #4E0550 ΔE 0.071
Use #311959 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.