#4F508E
Closest named color: Twilight (#4E518B). oklch(46% 0.1 281), rgb(79, 80, 142).
Aa
White text reads best on this color (7.31:1).
About this color
#4F508E is a medium-dark, moderately saturated purple. In OKLCH its lightness is 46%, its chroma 0.100 and its hue 281°. Its hue sits on the cool side of the wheel. The nearest named color is Twilight (#4E518B), ΔE 0.006 away. White text reads best on it, at 7.31:1.
| Hue family | Purples |
| Lightness | medium-dark (46%) |
| Chroma | moderately saturated (0.100) |
| Temperature | cool |
| Nearest name | Twilight (#4E518B) |
| Black text | 2.87:1 |
| White text | 7.31:1 |
Values
| HEX | #4F508E |
| RGB | rgb(79, 80, 142) |
| HSL | hsl(239, 29%, 43%) |
| OKLCH | oklch(46% 0.1 281) |
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 #4F508E | 7.31:1 | AAA | Lc -90.2 | Preferred for body text |
| Black text on #4F508E | 2.87:1 | Fails | Lc 18.7 | Dividers and decoration only |
| #4F508E text on white | 7.31:1 | AAA | Lc 85.3 | Fine for body text |
| #4F508E text on black | 2.87:1 | Fails | Lc -16.7 | 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 700.
-
Step 50
50
#F4F5FA
oklch(97.1% 0.007 277.2)
-
Step 100
100
#E8E9F3
oklch(93.6% 0.013 281.6)
-
Step 200
200
#D5D7EB
oklch(88.4% 0.027 281.3)
-
Step 300
300
#BABEE0
oklch(80.9% 0.048 280)
-
Step 400
400
#989BD0
oklch(70.6% 0.077 281.7)
-
Step 500
500
#7F82C4
oklch(63.1% 0.099 281.2)
-
Step 600
600
#696BB0
oklch(55.7% 0.106 281.1)
-
Step 700
700 (this color)
#4F508E
oklch(46% 0.1 281)
-
Step 800
800
#47497B
oklch(42.7% 0.082 280.6)
-
Step 900
900
#3C3D63
oklch(37.7% 0.065 281.7)
-
Step 950
950
#23243A
oklch(27% 0.041 281.3)
#4F508E 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) | #395990 | 0.036 |
| Deuteranopia (no green cones) | #35548D | 0.035 |
| Tritanopia (no blue cones) | #3B5D68 | 0.087 |
| Achromatopsia (no color) | #565656 | 0.100 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4F508E
#4F508E
oklch(46% 0.1 281)
- #645900
#645900
oklch(46% 0.096 101)
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 #4F508E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight #4E518B ΔE 0.006
- Dusk #4E5481 ΔE 0.027
- Denim Blue #3B5B92 ΔE 0.037
- Dusky Blue #475F94 ΔE 0.042
- Blueberry #464196 ΔE 0.048
- Light Navy Blue #2E5A88 ΔE 0.050
- Dusk Blue #26538D ΔE 0.050
- Dusty Grape #545775 ΔE 0.051
Use #4F508E 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.