#491B58
Closest named color: Plum Purple (#4E0550). oklch(32.1% 0.112 316.9), rgb(73, 27, 88).
Aa
White text reads best on this color (13.28:1).
About this color
#491B58 is a dark, moderately saturated purple. In OKLCH its lightness is 32%, its chroma 0.112 and its hue 317°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Plum Purple (#4E0550), ΔE 0.036 away. White text reads best on it, at 13.28:1.
| Hue family | Purples |
| Lightness | dark (32%) |
| Chroma | moderately saturated (0.112) |
| Temperature | in between |
| Nearest name | Plum Purple (#4E0550) |
| Black text | 1.58:1 |
| White text | 13.28:1 |
Values
| HEX | #491B58 |
| RGB | rgb(73, 27, 88) |
| HSL | hsl(285, 53%, 23%) |
| OKLCH | oklch(32.1% 0.112 316.9) |
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 #491B58 | 13.28:1 | AAA | Lc -102.4 | Preferred for body text |
| Black text on #491B58 | 1.58:1 | Fails | Lc 0.0 | Not readable |
| #491B58 text on white | 13.28:1 | AAA | Lc 99.2 | Preferred for body text |
| #491B58 text on black | 1.58:1 | 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
#FAF2FE
oklch(97.1% 0.018 314.7)
-
Step 100
100
#F5E2FB
oklch(93.5% 0.039 318.1)
-
Step 200
200
#EDCBFA
oklch(88.5% 0.073 316.6)
-
Step 300
300
#E3A5F9
oklch(80.9% 0.132 317)
-
Step 400
400
#D46DF6
oklch(70.7% 0.213 317)
-
Step 500
500
#C735F2
oklch(63.1% 0.271 316.9)
-
Step 600
600
#AE00D8
oklch(55.6% 0.271 316.9)
-
Step 700
700
#9300B7
oklch(49.1% 0.24 316.9)
-
Step 800
800
#790097
oklch(42.6% 0.208 316.9)
-
Step 900
900
#64087D
oklch(37.6% 0.177 316.8)
-
Step 950
950 (this color)
#491B58
oklch(32.1% 0.112 316.9)
#491B58 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) | #062D5A | 0.108 |
| Deuteranopia (no green cones) | #1C3157 | 0.093 |
| Tritanopia (no blue cones) | #482637 | 0.071 |
| Achromatopsia (no color) | #303030 | 0.113 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #491B58
#491B58
oklch(32.1% 0.112 316.9)
- #173E00
#173E00
oklch(32.3% 0.098 137.1)
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 #491B58, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Plum Purple #4E0550 ΔE 0.036
- Deep Violet #490648 ΔE 0.043
- Grape Purple #5D1451 ΔE 0.046
- Royal Purple #4B006E ΔE 0.053
- Eggplant Purple #430541 ΔE 0.056
- Dark Purple #35063E ΔE 0.077
- Aubergine #3D0734 ΔE 0.077
- Indigo #4B0082 ΔE 0.079
Use #491B58 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.