#4F487B
Closest named color: Twilight (#4E518B). oklch(43.2% 0.083 288.7), rgb(79, 72, 123).
Aa
White text reads best on this color (8.25:1).
About this color
#4F487B is a dark, moderately saturated purple. In OKLCH its lightness is 43%, its chroma 0.083 and its hue 289°. Its hue sits on the cool side of the wheel. The nearest named color is Twilight (#4E518B), ΔE 0.033 away. White text reads best on it, at 8.25:1.
| Hue family | Purples |
| Lightness | dark (43%) |
| Chroma | moderately saturated (0.083) |
| Temperature | cool |
| Nearest name | Twilight (#4E518B) |
| Black text | 2.54:1 |
| White text | 8.25:1 |
Values
| HEX | #4F487B |
| RGB | rgb(79, 72, 123) |
| HSL | hsl(248, 26%, 38%) |
| OKLCH | oklch(43.2% 0.083 288.7) |
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 #4F487B | 8.25:1 | AAA | Lc -93.0 | Preferred for body text |
| Black text on #4F487B | 2.54:1 | Fails | Lc 15.6 | Dividers and decoration only |
| #4F487B text on white | 8.25:1 | AAA | Lc 88.4 | Fine for body text |
| #4F487B text on black | 2.54:1 | Fails | Lc -13.7 | 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 800.
-
Step 50
50
#F5F5FA
oklch(97.2% 0.007 286.3)
-
Step 100
100
#E9E9F3
oklch(93.7% 0.013 286.1)
-
Step 200
200
#D8D7EA
oklch(88.6% 0.026 288.3)
-
Step 300
300
#BFBCDF
oklch(80.9% 0.049 289.2)
-
Step 400
400
#9E99CF
oklch(70.7% 0.078 288.5)
-
Step 500
500
#877FC2
oklch(63% 0.1 288.7)
-
Step 600
600
#7168AE
oklch(55.6% 0.107 288.3)
-
Step 700
700
#5F5696
oklch(49.1% 0.101 288.6)
-
Step 800
800 (this color)
#4F487B
oklch(43.2% 0.083 288.7)
-
Step 900
900
#403C62
oklch(37.8% 0.064 287.7)
-
Step 950
950
#262339
oklch(27% 0.04 289.7)
#4F487B 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) | #38507D | 0.038 |
| Deuteranopia (no green cones) | #384D7A | 0.035 |
| Tritanopia (no blue cones) | #44525B | 0.071 |
| Achromatopsia (no color) | #4F4F4F | 0.083 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4F487B
#4F487B
oklch(43.2% 0.083 288.7)
- #545414
#545414
oklch(43.3% 0.083 109.4)
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 #4F487B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight #4E518B ΔE 0.033
- Dusk #4E5481 ΔE 0.034
- Dark Slate Blue #483D8B ΔE 0.046
- Dusty Grape #545775 ΔE 0.049
- Blueberry #464196 ΔE 0.054
- YInMn Blue #415A77 ΔE 0.057
- Dusk Blue #26538D ΔE 0.060
- Denim Blue #3B5B92 ΔE 0.062
Use #4F487B 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.