#4F4B99
Closest named color: Twilight (#4E518B). oklch(45.7% 0.123 282.7), rgb(79, 75, 153).
Aa
White text reads best on this color (7.50:1).
About this color
#4F4B99 is a medium-dark, moderately saturated purple. In OKLCH its lightness is 46%, its chroma 0.123 and its hue 283°. Its hue sits on the cool side of the wheel. The nearest named color is Twilight (#4E518B), ΔE 0.030 away. White text reads best on it, at 7.50:1.
| Hue family | Purples |
| Lightness | medium-dark (46%) |
| Chroma | moderately saturated (0.123) |
| Temperature | cool |
| Nearest name | Twilight (#4E518B) |
| Black text | 2.79:1 |
| White text | 7.50:1 |
Values
| HEX | #4F4B99 |
| RGB | rgb(79, 75, 153) |
| HSL | hsl(243, 34%, 45%) |
| OKLCH | oklch(45.7% 0.123 282.7) |
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 #4F4B99 | 7.50:1 | AAA | Lc -90.7 | Preferred for body text |
| Black text on #4F4B99 | 2.79:1 | Fails | Lc 18.1 | Dividers and decoration only |
| #4F4B99 text on white | 7.50:1 | AAA | Lc 85.9 | Fine for body text |
| #4F4B99 text on black | 2.79:1 | 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
#F4F5FC
oklch(97.1% 0.009 279.7)
-
Step 100
100
#E7E8F8
oklch(93.5% 0.022 283.1)
-
Step 200
200
#D5D6F4
oklch(88.5% 0.041 284)
-
Step 300
300
#B9BBEF
oklch(80.8% 0.073 282.9)
-
Step 400
400
#9697E6
oklch(70.7% 0.115 282.5)
-
Step 500
500
#7E7BDF
oklch(63.1% 0.147 282.7)
-
Step 600
600
#6862CD
oklch(55.6% 0.16 282.4)
-
Step 700
700
#5750B1
oklch(49% 0.149 282.6)
-
Step 800
800 (this color)
#4F4B99
oklch(45.7% 0.123 282.7)
-
Step 900
900
#3B3972
oklch(37.7% 0.095 282.4)
-
Step 950
950
#232243
oklch(27.1% 0.06 283)
#4F4B99 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) | #27579C | 0.053 |
| Deuteranopia (no green cones) | #235297 | 0.054 |
| Tritanopia (no blue cones) | #355C6B | 0.106 |
| Achromatopsia (no color) | #555555 | 0.124 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4F4B99
#4F4B99
oklch(45.7% 0.123 282.7)
- #625900
#625900
oklch(45.8% 0.096 102.7)
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 #4F4B99, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight #4E518B ΔE 0.030
- Blueberry #464196 ΔE 0.031
- Dark Slate Blue #483D8B ΔE 0.044
- Dusk #4E5481 ΔE 0.051
- Denim Blue #3B5B92 ΔE 0.052
- Dusky Blue #475F94 ΔE 0.057
- Dusk Blue #26538D ΔE 0.058
- Rebecca Purple #663399 ΔE 0.065
Use #4F4B99 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.