#4C3975
Closest named color: Dark Slate Blue (#483D8B). oklch(39.5% 0.099 296.2), rgb(76, 57, 117).
Aa
White text reads best on this color (9.77:1).
About this color
#4C3975 is a dark, moderately saturated purple. In OKLCH its lightness is 40%, its chroma 0.099 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 0.037 away. White text reads best on it, at 9.77:1.
| Hue family | Purples |
| Lightness | dark (40%) |
| Chroma | moderately saturated (0.099) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.14:1 |
| White text | 9.77:1 |
Values
| HEX | #4C3975 |
| RGB | rgb(76, 57, 117) |
| HSL | hsl(259, 34%, 34%) |
| OKLCH | oklch(39.5% 0.099 296.2) |
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 #4C3975 | 9.77:1 | AAA | Lc -96.7 | Preferred for body text |
| Black text on #4C3975 | 2.14:1 | Fails | Lc 11.5 | Not readable |
| #4C3975 text on white | 9.77:1 | AAA | Lc 92.5 | Preferred for body text |
| #4C3975 text on black | 2.14:1 | 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
#EBE7F7
oklch(93.6% 0.022 297.4)
-
Step 200
200
#DBD4F2
oklch(88.5% 0.041 296.2)
-
Step 300
300
#C4B7EC
oklch(80.8% 0.075 295.9)
-
Step 400
400
#A790E2
oklch(70.6% 0.119 296.1)
-
Step 500
500
#9373DA
oklch(63.1% 0.152 296.1)
-
Step 600
600
#7E59C7
oklch(55.6% 0.165 296.1)
-
Step 700
700
#6B48AC
oklch(49.1% 0.154 296.4)
-
Step 800
800
#573C8C
oklch(42.8% 0.128 296.1)
-
Step 900
900 (this color)
#4C3975
oklch(39.5% 0.099 296.2)
-
Step 950
950
#2A1F41
oklch(27% 0.062 297)
#4C3975 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) | #244477 | 0.062 |
| Deuteranopia (no green cones) | #284374 | 0.058 |
| Tritanopia (no blue cones) | #434551 | 0.080 |
| Achromatopsia (no color) | #444444 | 0.100 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4C3975
#4C3975
oklch(39.5% 0.099 296.2)
- #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 #4C3975, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.037
- Blueberry #464196 ΔE 0.057
- Twilight #4E518B ΔE 0.070
- Dusk #4E5481 ΔE 0.076
- Cobalt #1E488F ΔE 0.077
- Rebecca Purple #663399 ΔE 0.077
- Twilight Blue #0A437A ΔE 0.079
- Dark Grey Blue #29465B ΔE 0.083
Use #4C3975 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.