#4F4D91
Closest named color: Twilight (#4E518B). oklch(45.6% 0.109 282.5), rgb(79, 77, 145).
Aa
White text reads best on this color (7.49:1).
About this color
#4F4D91 is a medium-dark, moderately saturated purple. In OKLCH its lightness is 46%, its chroma 0.109 and its hue 283°. Its hue sits on the cool side of the wheel. The nearest named color is Twilight (#4E518B), ΔE 0.016 away. White text reads best on it, at 7.49:1.
| Hue family | Purples |
| Lightness | medium-dark (46%) |
| Chroma | moderately saturated (0.109) |
| Temperature | cool |
| Nearest name | Twilight (#4E518B) |
| Black text | 2.80:1 |
| White text | 7.49:1 |
Values
| HEX | #4F4D91 |
| RGB | rgb(79, 77, 145) |
| HSL | hsl(242, 31%, 44%) |
| OKLCH | oklch(45.6% 0.109 282.5) |
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 #4F4D91 | 7.49:1 | AAA | Lc -90.7 | Preferred for body text |
| Black text on #4F4D91 | 2.80:1 | Fails | Lc 18.1 | Dividers and decoration only |
| #4F4D91 text on white | 7.49:1 | AAA | Lc 85.9 | Fine for body text |
| #4F4D91 text on black | 2.80:1 | Fails | Lc -16.2 | Dividers and decoration only |
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 800.
-
Step 50
50
#F4F5FB
oklch(97.1% 0.008 278.6)
-
Step 100
100
#E8E9F6
oklch(93.7% 0.018 282.5)
-
Step 200
200
#D5D7F0
oklch(88.5% 0.034 282)
-
Step 300
300
#BABCE9
oklch(80.9% 0.063 282.9)
-
Step 400
400
#9798DE
oklch(70.6% 0.102 282.8)
-
Step 500
500
#7F7ED5
oklch(63.2% 0.129 282.6)
-
Step 600
600
#6965C2
oklch(55.5% 0.141 282.7)
-
Step 700
700
#5854A8
oklch(49.2% 0.131 282.6)
-
Step 800
800 (this color)
#4F4D91
oklch(45.6% 0.109 282.5)
-
Step 900
900
#3C3A6D
oklch(37.7% 0.086 283.3)
-
Step 950
950
#232340
oklch(27.2% 0.053 282.3)
#4F4D91 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) | #325794 | 0.043 |
| Deuteranopia (no green cones) | #2F528F | 0.043 |
| Tritanopia (no blue cones) | #3A5B68 | 0.093 |
| Achromatopsia (no color) | #555555 | 0.109 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4F4D91
#4F4D91
oklch(45.6% 0.109 282.5)
- #615800
#615800
oklch(45.5% 0.095 102.6)
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 #4F4D91, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight #4E518B ΔE 0.016
- Dusk #4E5481 ΔE 0.036
- Blueberry #464196 ΔE 0.038
- Denim Blue #3B5B92 ΔE 0.044
- Dark Slate Blue #483D8B ΔE 0.045
- Dusky Blue #475F94 ΔE 0.050
- Dusk Blue #26538D ΔE 0.052
- Light Navy Blue #2E5A88 ΔE 0.056
Use #4F4D91 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.