#331B49
Closest named color: Dark Purple (#35063E). oklch(27.9% 0.084 305.7), rgb(51, 27, 73).
Aa
White text reads best on this color (15.06:1).
About this color
#331B49 is a dark, moderately saturated purple. In OKLCH its lightness is 28%, its chroma 0.084 and its hue 306°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Purple (#35063E), ΔE 0.047 away. White text reads best on it, at 15.06:1.
| Hue family | Purples |
| Lightness | dark (28%) |
| Chroma | moderately saturated (0.084) |
| Temperature | in between |
| Nearest name | Dark Purple (#35063E) |
| Black text | 1.39:1 |
| White text | 15.06:1 |
Values
| HEX | #331B49 |
| RGB | rgb(51, 27, 73) |
| HSL | hsl(271, 46%, 20%) |
| OKLCH | oklch(27.9% 0.084 305.7) |
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 #331B49 | 15.06:1 | AAA | Lc -104.5 | Preferred for body text |
| Black text on #331B49 | 1.39:1 | Fails | Lc 0.0 | Not readable |
| #331B49 text on white | 15.06:1 | AAA | Lc 101.7 | Preferred for body text |
| #331B49 text on black | 1.39:1 | 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
#F7F3FD
oklch(97% 0.014 304.1)
-
Step 100
100
#EEE5FA
oklch(93.5% 0.03 305.1)
-
Step 200
200
#E2D0F7
oklch(88.4% 0.056 306.1)
-
Step 300
300
#D0B0F4
oklch(80.8% 0.1 305.8)
-
Step 400
400
#B984EF
oklch(70.8% 0.159 305.6)
-
Step 500
500
#A85FE9
oklch(63.1% 0.204 305.7)
-
Step 600
600
#943FD7
oklch(55.6% 0.222 305.9)
-
Step 700
700
#7E2FBA
oklch(49% 0.206 305.9)
-
Step 800
800
#662997
oklch(42.6% 0.171 305.5)
-
Step 900
900
#532878
oklch(37.7% 0.133 305.7)
-
Step 950
950 (this color)
#331B49
oklch(27.9% 0.084 305.7)
#331B49 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) | #0A264B | 0.067 |
| Deuteranopia (no green cones) | #132648 | 0.060 |
| Tritanopia (no blue cones) | #2F242F | 0.061 |
| Achromatopsia (no color) | #262626 | 0.085 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #331B49
#331B49
oklch(27.9% 0.084 305.7)
- #202E00
#202E00
oklch(27.8% 0.07 125.6)
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 #331B49, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Purple #35063E ΔE 0.047
- Eggplant Purple #430541 ΔE 0.052
- Eggplant #380835 ΔE 0.052
- Deep Purple #36013F ΔE 0.054
- Aubergine #3D0734 ΔE 0.056
- Deep Violet #490648 ΔE 0.057
- Space Cadet #2B2D42 ΔE 0.059
- Oxford Blue #1B263B ΔE 0.061
Use #331B49 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.