#4C3877
Closest named color: Dark Slate Blue (#483D8B). oklch(39.5% 0.104 295.9), rgb(76, 56, 119).
Aa
White text reads best on this color (9.81:1).
About this color
#4C3877 is a dark, moderately saturated purple. In OKLCH its lightness is 39%, its chroma 0.104 and its hue 296°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.035 away. White text reads best on it, at 9.81:1.
| Hue family | Purples |
| Lightness | dark (39%) |
| Chroma | moderately saturated (0.104) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.13:1 |
| White text | 9.81:1 |
Values
| HEX | #4C3877 |
| RGB | rgb(76, 56, 119) |
| HSL | hsl(259, 36%, 34%) |
| OKLCH | oklch(39.5% 0.104 295.9) |
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 #4C3877 | 9.81:1 | AAA | Lc -96.8 | Preferred for body text |
| Black text on #4C3877 | 2.13:1 | Fails | Lc 11.4 | Not readable |
| #4C3877 text on white | 9.81:1 | AAA | Lc 92.6 | Preferred for body text |
| #4C3877 text on black | 2.13:1 | Fails | Lc -9.9 | 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
#EBE7F8
oklch(93.6% 0.023 296.7)
-
Step 200
200
#DBD4F3
oklch(88.5% 0.043 295.9)
-
Step 300
300
#C4B7EE
oklch(80.9% 0.078 295.4)
-
Step 400
400
#A890E5
oklch(70.8% 0.124 296.1)
-
Step 500
500
#9371DE
oklch(63% 0.16 295.8)
-
Step 600
600
#7E57CB
oklch(55.5% 0.173 295.8)
-
Step 700
700
#6B46B0
oklch(49.1% 0.162 296)
-
Step 800
800
#573A8E
oklch(42.6% 0.134 296.2)
-
Step 900
900 (this color)
#4C3877
oklch(39.5% 0.104 295.9)
-
Step 950
950
#2A1E43
oklch(27% 0.067 296.6)
#4C3877 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) | #214479 | 0.065 |
| Deuteranopia (no green cones) | #254376 | 0.062 |
| Tritanopia (no blue cones) | #424452 | 0.082 |
| Achromatopsia (no color) | #444444 | 0.104 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4C3877
#4C3877
oklch(39.5% 0.104 295.9)
- #444C00
#444C00
oklch(39.6% 0.091 116.4)
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 #4C3877, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.035
- Blueberry #464196 ΔE 0.054
- Twilight #4E518B ΔE 0.071
- Rebecca Purple #663399 ΔE 0.074
- Cobalt #1E488F ΔE 0.076
- Dusk #4E5481 ΔE 0.078
- Twilight Blue #0A437A ΔE 0.079
- Dusk Blue #26538D ΔE 0.086
Use #4C3877 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.