#4E2981
Closest named color: Dark Slate Blue (#483D8B). oklch(37.9% 0.141 298.8), rgb(78, 41, 129).
Aa
White text reads best on this color (10.72:1).
About this color
#4E2981 is a dark, vivid purple. In OKLCH its lightness is 38%, its chroma 0.141 and its hue 299°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.049 away. White text reads best on it, at 10.72:1.
| Hue family | Purples |
| Lightness | dark (38%) |
| Chroma | vivid (0.141) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 1.95:1 |
| White text | 10.72:1 |
Values
| HEX | #4E2981 |
| RGB | rgb(78, 41, 129) |
| HSL | hsl(265, 52%, 33%) |
| OKLCH | oklch(37.9% 0.141 298.8) |
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 #4E2981 | 10.72:1 | AAA | Lc -98.3 | Preferred for body text |
| Black text on #4E2981 | 1.95:1 | Fails | Lc 9.6 | Not readable |
| #4E2981 text on white | 10.72:1 | AAA | Lc 94.3 | Preferred for body text |
| #4E2981 text on black | 1.95:1 | Fails | Lc -8.2 | 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 900.
-
Step 50
50
#F6F4FE
oklch(97.2% 0.013 295.3)
-
Step 100
100
#ECE6FC
oklch(93.6% 0.03 298.3)
-
Step 200
200
#DED1FB
oklch(88.4% 0.059 299.3)
-
Step 300
300
#C9B2FC
oklch(80.9% 0.105 298.3)
-
Step 400
400
#B085FA
oklch(70.7% 0.169 299)
-
Step 500
500
#9E60F7
oklch(63.1% 0.216 299)
-
Step 600
600
#8A3FE6
oklch(55.6% 0.235 298.9)
-
Step 700
700
#752FC8
oklch(49.1% 0.219 298.6)
-
Step 800
800
#5F29A2
oklch(42.7% 0.182 298.6)
-
Step 900
900 (this color)
#4E2981
oklch(37.9% 0.141 298.8)
-
Step 950
950
#2D194B
oklch(27% 0.089 298.7)
#4E2981 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) | #003E84 | 0.098 |
| Deuteranopia (no green cones) | #003D7F | 0.099 |
| Tritanopia (no blue cones) | #423D51 | 0.107 |
| Achromatopsia (no color) | #3E3E3E | 0.142 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4E2981
#4E2981
oklch(37.9% 0.141 298.8)
- #3E4800
#3E4800
oklch(37.9% 0.089 118.4)
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 #4E2981, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.049
- Indigo #4B0082 ΔE 0.056
- Blueberry #464196 ΔE 0.064
- Rebecca Purple #663399 ΔE 0.065
- Royal Purple #4B006E ΔE 0.070
- Imperial Purple #480CA8 ΔE 0.075
- Chrysanthemum #560BAD ΔE 0.079
- Grape Purple #5D1451 ΔE 0.094
Use #4E2981 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.