#311B60
Closest named color: Midnight Blue (#191970). oklch(29.6% 0.116 292.6), rgb(49, 27, 96).
Aa
White text reads best on this color (14.42:1).
About this color
#311B60 is a dark, moderately saturated purple. In OKLCH its lightness is 30%, its chroma 0.116 and its hue 293°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Midnight Blue (#191970), ΔE 0.053 away. White text reads best on it, at 14.42:1.
| Hue family | Purples |
| Lightness | dark (30%) |
| Chroma | moderately saturated (0.116) |
| Temperature | in between |
| Nearest name | Midnight Blue (#191970) |
| Black text | 1.45:1 |
| White text | 14.42:1 |
Values
| HEX | #311B60 |
| RGB | rgb(49, 27, 96) |
| HSL | hsl(259, 56%, 24%) |
| OKLCH | oklch(29.6% 0.116 292.6) |
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 #311B60 | 14.42:1 | AAA | Lc -103.8 | Preferred for body text |
| Black text on #311B60 | 1.45:1 | Fails | Lc 0.0 | Not readable |
| #311B60 text on white | 14.42:1 | AAA | Lc 100.8 | Preferred for body text |
| #311B60 text on black | 1.45:1 | 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
#F5F4FF
oklch(97.1% 0.015 290.3)
-
Step 100
100
#EAE6FF
oklch(93.6% 0.034 293.1)
-
Step 200
200
#DAD2FF
oklch(88.5% 0.062 293.2)
-
Step 300
300
#C2B4FF
oklch(80.9% 0.105 292.4)
-
Step 400
400
#A589FF
oklch(70.7% 0.169 292.5)
-
Step 500
500
#9265FF
oklch(63.2% 0.218 292.5)
-
Step 600
600
#8233FF
oklch(55.7% 0.271 292.7)
-
Step 700
700
#7000E9
oklch(49.1% 0.274 292.4)
-
Step 800
800
#5C06C0
oklch(42.8% 0.235 292.6)
-
Step 900
900
#4A1B97
oklch(37.7% 0.182 292.4)
-
Step 950
950 (this color)
#311B60
oklch(29.6% 0.116 292.6)
#311B60 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) | #002B62 | 0.068 |
| Deuteranopia (no green cones) | #00285F | 0.067 |
| Tritanopia (no blue cones) | #232C3B | 0.091 |
| Achromatopsia (no color) | #2A2A2A | 0.116 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #311B60
#311B60
oklch(29.6% 0.116 292.6)
- #2E3000
#2E3000
oklch(29.7% 0.066 112.3)
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 #311B60, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Midnight Blue #191970 ΔE 0.053
- Dark Indigo #1F0954 ΔE 0.059
- Royal Purple #4B006E ΔE 0.066
- Marine #042E60 ΔE 0.070
- Dark Purple #35063E ΔE 0.074
- Deep Violet #490648 ΔE 0.075
- Plum Purple #4E0550 ΔE 0.076
- Eggplant Purple #430541 ΔE 0.078
Use #311B60 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.