#311550
Closest named color: Dark Purple (#35063E). oklch(27.3% 0.103 301.6), rgb(49, 21, 80).
Aa
White text reads best on this color (15.51:1).
About this color
#311550 is a dark, moderately saturated purple. In OKLCH its lightness is 27%, its chroma 0.103 and its hue 302°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Purple (#35063E), ΔE 0.044 away. White text reads best on it, at 15.51:1.
| Hue family | Purples |
| Lightness | dark (27%) |
| Chroma | moderately saturated (0.103) |
| Temperature | in between |
| Nearest name | Dark Purple (#35063E) |
| Black text | 1.35:1 |
| White text | 15.51:1 |
Values
| HEX | #311550 |
| RGB | rgb(49, 21, 80) |
| HSL | hsl(268, 58%, 20%) |
| OKLCH | oklch(27.3% 0.103 301.6) |
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 #311550 | 15.51:1 | AAA | Lc -104.8 | Preferred for body text |
| Black text on #311550 | 1.35:1 | Fails | Lc 0.0 | Not readable |
| #311550 text on white | 15.51:1 | AAA | Lc 102.1 | Preferred for body text |
| #311550 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
#F7F3FF
oklch(97.1% 0.016 301.2)
-
Step 100
100
#EEE5FE
oklch(93.6% 0.035 302.1)
-
Step 200
200
#E1CFFF
oklch(88.5% 0.068 302.1)
-
Step 300
300
#CEAFFF
oklch(80.9% 0.115 301.7)
-
Step 400
400
#B680FF
oklch(70.7% 0.184 301.5)
-
Step 500
500
#A656FF
oklch(63.1% 0.239 301.5)
-
Step 600
600
#9425F3
oklch(55.6% 0.271 301.7)
-
Step 700
700
#7E0FD4
oklch(49.1% 0.253 301.4)
-
Step 800
800
#6616AB
oklch(42.6% 0.209 301.4)
-
Step 900
900
#531E87
oklch(37.6% 0.163 301.8)
-
Step 950
950 (this color)
#311550
oklch(27.3% 0.103 301.6)
#311550 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) | #002452 | 0.076 |
| Deuteranopia (no green cones) | #00244F | 0.077 |
| Tritanopia (no blue cones) | #2A2330 | 0.078 |
| Achromatopsia (no color) | #242424 | 0.104 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #311550
#311550
oklch(27.3% 0.103 301.6)
- #222C00
#222C00
oklch(27.4% 0.066 122)
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 #311550, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Purple #35063E ΔE 0.044
- Deep Purple #36013F ΔE 0.049
- Dark Indigo #1F0954 ΔE 0.049
- Eggplant Purple #430541 ΔE 0.054
- Eggplant #380835 ΔE 0.057
- Deep Violet #490648 ΔE 0.059
- Aubergine #3D0734 ΔE 0.063
- Plum Purple #4E0550 ΔE 0.067
Use #311550 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.