#4F387C
Closest named color: Dark Slate Blue (#483D8B). oklch(40.1% 0.111 296.7), rgb(79, 56, 124).
Aa
White text reads best on this color (9.59:1).
About this color
#4F387C is a dark, moderately saturated purple. In OKLCH its lightness is 40%, its chroma 0.111 and its hue 297°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.029 away. White text reads best on it, at 9.59:1.
| Hue family | Purples |
| Lightness | dark (40%) |
| Chroma | moderately saturated (0.111) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.18:1 |
| White text | 9.59:1 |
Values
| HEX | #4F387C |
| RGB | rgb(79, 56, 124) |
| HSL | hsl(260, 38%, 35%) |
| OKLCH | oklch(40.1% 0.111 296.7) |
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 #4F387C | 9.59:1 | AAA | Lc -96.3 | Preferred for body text |
| Black text on #4F387C | 2.18:1 | Fails | Lc 12.0 | Not readable |
| #4F387C text on white | 9.59:1 | AAA | Lc 92.0 | Preferred for body text |
| #4F387C text on black | 2.18:1 | Fails | Lc -10.4 | 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 900.
-
Step 50
50
#F6F4FC
oklch(97.1% 0.011 297.6)
-
Step 100
100
#EBE7F9
oklch(93.6% 0.024 296.1)
-
Step 200
200
#DCD3F5
oklch(88.5% 0.047 297.5)
-
Step 300
300
#C5B6F1
oklch(80.9% 0.084 296.1)
-
Step 400
400
#A98EEA
oklch(70.8% 0.134 296.3)
-
Step 500
500
#956EE3
oklch(63% 0.172 296.5)
-
Step 600
600
#8153D1
oklch(55.6% 0.186 296.7)
-
Step 700
700
#6D43B5
oklch(49.2% 0.172 296.5)
-
Step 800
800
#593892
oklch(42.8% 0.142 296.8)
-
Step 900
900 (this color)
#4F387C
oklch(40.1% 0.111 296.7)
-
Step 950
950
#2A1D44
oklch(26.8% 0.071 296.7)
#4F387C 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) | #1D457E | 0.073 |
| Deuteranopia (no green cones) | #23447A | 0.068 |
| Tritanopia (no blue cones) | #454654 | 0.089 |
| Achromatopsia (no color) | #454545 | 0.112 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4F387C
#4F387C
oklch(40.1% 0.111 296.7)
- #454E00
#454E00
oklch(40.2% 0.093 117.1)
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 #4F387C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.029
- Blueberry #464196 ΔE 0.048
- Rebecca Purple #663399 ΔE 0.064
- Twilight #4E518B ΔE 0.068
- Dusk #4E5481 ΔE 0.077
- Cobalt #1E488F ΔE 0.077
- Twilight Blue #0A437A ΔE 0.085
- Dusk Blue #26538D ΔE 0.086
Use #4F387C 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.