#493C78
Closest named color: Dark Slate Blue (#483D8B). oklch(40% 0.098 291.3), rgb(73, 60, 120).
Aa
White text reads best on this color (9.54:1).
About this color
#493C78 is a dark, moderately saturated purple. In OKLCH its lightness is 40%, its chroma 0.098 and its hue 291°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.032 away. White text reads best on it, at 9.54:1.
| Hue family | Purples |
| Lightness | dark (40%) |
| Chroma | moderately saturated (0.098) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.20:1 |
| White text | 9.54:1 |
Values
| HEX | #493C78 |
| RGB | rgb(73, 60, 120) |
| HSL | hsl(253, 33%, 35%) |
| OKLCH | oklch(40% 0.098 291.3) |
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 #493C78 | 9.54:1 | AAA | Lc -96.2 | Preferred for body text |
| Black text on #493C78 | 2.20:1 | Fails | Lc 12.0 | Not readable |
| #493C78 text on white | 9.54:1 | AAA | Lc 91.9 | Preferred for body text |
| #493C78 text on black | 2.20:1 | Fails | Lc -10.5 | 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
#F5F4FC
oklch(97% 0.011 292)
-
Step 100
100
#E9E8F8
oklch(93.6% 0.021 288.9)
-
Step 200
200
#D9D5F3
oklch(88.5% 0.041 291.7)
-
Step 300
300
#C0B9ED
oklch(80.9% 0.073 290.8)
-
Step 400
400
#A193E4
oklch(70.7% 0.117 291)
-
Step 500
500
#8C76DD
oklch(63.2% 0.151 291.3)
-
Step 600
600
#775CCA
oklch(55.6% 0.164 291.5)
-
Step 700
700
#644BAF
oklch(49.1% 0.153 291.3)
-
Step 800
800
#513E8E
oklch(42.7% 0.127 291)
-
Step 900
900 (this color)
#493C78
oklch(40% 0.098 291.3)
-
Step 950
950
#272042
oklch(27% 0.062 291.2)
#493C78 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) | #26467A | 0.053 |
| Deuteranopia (no green cones) | #274477 | 0.051 |
| Tritanopia (no blue cones) | #3D4854 | 0.081 |
| Achromatopsia (no color) | #454545 | 0.099 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #493C78
#493C78
oklch(40% 0.098 291.3)
- #4A4C00
#4A4C00
oklch(40.1% 0.088 111.5)
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 #493C78, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.032
- Blueberry #464196 ΔE 0.050
- Twilight #4E518B ΔE 0.063
- Cobalt #1E488F ΔE 0.068
- Dusk #4E5481 ΔE 0.069
- Twilight Blue #0A437A ΔE 0.071
- Dusk Blue #26538D ΔE 0.076
- Light Navy #155084 ΔE 0.076
Use #493C78 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.