#431B4D
Closest named color: Deep Violet (#490648). oklch(30.5% 0.097 319.2), rgb(67, 27, 77).
Aa
White text reads best on this color (13.97:1).
About this color
#431B4D is a dark, moderately saturated purple. In OKLCH its lightness is 30%, its chroma 0.097 and its hue 319°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Deep Violet (#490648), ΔE 0.036 away. White text reads best on it, at 13.97:1.
| Hue family | Purples |
| Lightness | dark (30%) |
| Chroma | moderately saturated (0.097) |
| Temperature | in between |
| Nearest name | Deep Violet (#490648) |
| Black text | 1.50:1 |
| White text | 13.97:1 |
Values
| HEX | #431B4D |
| RGB | rgb(67, 27, 77) |
| HSL | hsl(288, 48%, 20%) |
| OKLCH | oklch(30.5% 0.097 319.2) |
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 #431B4D | 13.97:1 | AAA | Lc -103.3 | Preferred for body text |
| Black text on #431B4D | 1.50:1 | Fails | Lc 0.0 | Not readable |
| #431B4D text on white | 13.97:1 | AAA | Lc 100.2 | Preferred for body text |
| #431B4D text on black | 1.50:1 | 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
#FAF2FC
oklch(97% 0.016 319.4)
-
Step 100
100
#F4E3F8
oklch(93.6% 0.033 319.8)
-
Step 200
200
#ECCCF4
oklch(88.4% 0.064 319.5)
-
Step 300
300
#E1A9EF
oklch(81% 0.113 319.5)
-
Step 400
400
#D076E7
oklch(70.7% 0.182 319.2)
-
Step 500
500
#C349E0
oklch(63.1% 0.234 319.3)
-
Step 600
600
#AE1ACE
oklch(55.6% 0.255 319)
-
Step 700
700
#9501B2
oklch(49.1% 0.236 319)
-
Step 800
800
#790F90
oklch(42.7% 0.195 319)
-
Step 900
900
#621A73
oklch(37.7% 0.152 319.1)
-
Step 950
950 (this color)
#431B4D
oklch(30.5% 0.097 319.2)
#431B4D 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) | #0F294F | 0.092 |
| Deuteranopia (no green cones) | #1E2D4C | 0.080 |
| Tritanopia (no blue cones) | #432331 | 0.060 |
| Achromatopsia (no color) | #2C2C2C | 0.097 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #431B4D
#431B4D
oklch(30.5% 0.097 319.2)
- #0F3A00
#0F3A00
oklch(30.6% 0.097 139.1)
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 #431B4D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Violet #490648 ΔE 0.036
- Plum Purple #4E0550 ΔE 0.040
- Eggplant Purple #430541 ΔE 0.043
- Grape Purple #5D1451 ΔE 0.057
- Aubergine #3D0734 ΔE 0.059
- Dark Purple #35063E ΔE 0.060
- Eggplant #380835 ΔE 0.062
- Deep Purple #36013F ΔE 0.065
Use #431B4D 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.