#4F2989
Closest named color: Dark Slate Blue (#483D8B). oklch(38.7% 0.151 296.9), rgb(79, 41, 137).
Aa
White text reads best on this color (10.44:1).
About this color
#4F2989 is a dark, vivid purple. In OKLCH its lightness is 39%, its chroma 0.151 and its hue 297°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.046 away. White text reads best on it, at 10.44:1.
| Hue family | Purples |
| Lightness | dark (39%) |
| Chroma | vivid (0.151) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.01:1 |
| White text | 10.44:1 |
Values
| HEX | #4F2989 |
| RGB | rgb(79, 41, 137) |
| HSL | hsl(264, 54%, 35%) |
| OKLCH | oklch(38.7% 0.151 296.9) |
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 #4F2989 | 10.44:1 | AAA | Lc -97.7 | Preferred for body text |
| Black text on #4F2989 | 2.01:1 | Fails | Lc 10.3 | Not readable |
| #4F2989 text on white | 10.44:1 | AAA | Lc 93.6 | Preferred for body text |
| #4F2989 text on black | 2.01:1 | Fails | Lc -8.9 | 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
#F6F4FF
oklch(97.2% 0.015 294.5)
-
Step 100
100
#ECE6FE
oklch(93.7% 0.033 297.2)
-
Step 200
200
#DDD1FF
oklch(88.5% 0.064 297)
-
Step 300
300
#C8B2FF
oklch(81% 0.109 297)
-
Step 400
400
#AD85FF
oklch(70.7% 0.175 296.8)
-
Step 500
500
#9B5EFF
oklch(63% 0.228 296.8)
-
Step 600
600
#8839F0
oklch(55.6% 0.251 296.8)
-
Step 700
700
#7428D1
oklch(49.1% 0.234 296.9)
-
Step 800
800
#5E25A9
oklch(42.7% 0.194 296.8)
-
Step 900
900 (this color)
#4F2989
oklch(38.7% 0.151 296.9)
-
Step 950
950
#2C184E
oklch(26.9% 0.095 296.5)
#4F2989 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) | #00408C | 0.099 |
| Deuteranopia (no green cones) | #003E87 | 0.099 |
| Tritanopia (no blue cones) | #404055 | 0.117 |
| Achromatopsia (no color) | #404040 | 0.152 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4F2989
#4F2989
oklch(38.7% 0.151 296.9)
- #414A00
#414A00
oklch(38.7% 0.09 117.4)
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 #4F2989, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.046
- Rebecca Purple #663399 ΔE 0.057
- Indigo #4B0082 ΔE 0.057
- Blueberry #464196 ΔE 0.058
- Imperial Purple #480CA8 ΔE 0.064
- Chrysanthemum #560BAD ΔE 0.066
- Royal Purple #4B006E ΔE 0.077
- Indigo Blue #3A18B1 ΔE 0.083
Use #4F2989 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.