#4F4F8F
Closest named color: Twilight (#4E518B). oklch(45.9% 0.103 281.6), rgb(79, 79, 143).
Aa
White text reads best on this color (7.37:1).
About this color
#4F4F8F is a medium-dark, moderately saturated purple. In OKLCH its lightness is 46%, its chroma 0.103 and its hue 282°. Its hue sits on the cool side of the wheel. The nearest named color is Twilight (#4E518B), ΔE 0.010 away. White text reads best on it, at 7.37:1.
| Hue family | Purples |
| Lightness | medium-dark (46%) |
| Chroma | moderately saturated (0.103) |
| Temperature | cool |
| Nearest name | Twilight (#4E518B) |
| Black text | 2.84:1 |
| White text | 7.37:1 |
Values
| HEX | #4F4F8F |
| RGB | rgb(79, 79, 143) |
| HSL | hsl(240, 29%, 44%) |
| OKLCH | oklch(45.9% 0.103 281.6) |
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 #4F4F8F | 7.37:1 | AAA | Lc -90.4 | Preferred for body text |
| Black text on #4F4F8F | 2.84:1 | Fails | Lc 18.5 | Dividers and decoration only |
| #4F4F8F text on white | 7.37:1 | AAA | Lc 85.5 | Fine for body text |
| #4F4F8F text on black | 2.84:1 | Fails | Lc -16.5 | 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
#E7E9F6
oklch(93.6% 0.018 279.1)
-
Step 200
200
#D5D7EF
oklch(88.5% 0.033 281.9)
-
Step 300
300
#B9BDE7
oklch(80.9% 0.059 280.7)
-
Step 400
400
#9699DB
oklch(70.6% 0.096 281.6)
-
Step 500
500
#7E7FD1
oklch(63.1% 0.122 281.8)
-
Step 600
600
#6867BE
oklch(55.6% 0.132 281.7)
-
Step 700
700
#5755A4
oklch(49.1% 0.124 282)
-
Step 800
800 (this color)
#4F4F8F
oklch(45.9% 0.103 281.6)
-
Step 900
900
#3B3B6B
oklch(37.7% 0.081 281.8)
-
Step 950
950
#22233E
oklch(26.9% 0.05 280.9)
#4F4F8F 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) | #375891 | 0.037 |
| Deuteranopia (no green cones) | #33538E | 0.037 |
| Tritanopia (no blue cones) | #3B5C68 | 0.088 |
| Achromatopsia (no color) | #565656 | 0.103 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4F4F8F
#4F4F8F
oklch(45.9% 0.103 281.6)
- #635900
#635900
oklch(45.9% 0.096 101.9)
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 #4F4F8F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight #4E518B ΔE 0.010
- Dusk #4E5481 ΔE 0.030
- Denim Blue #3B5B92 ΔE 0.039
- Dusky Blue #475F94 ΔE 0.044
- Blueberry #464196 ΔE 0.044
- Dusk Blue #26538D ΔE 0.050
- Dark Slate Blue #483D8B ΔE 0.051
- Light Navy Blue #2E5A88 ΔE 0.052
Use #4F4F8F 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.