#493991
Closest named color: Dark Slate Blue (#483D8B). oklch(41.3% 0.139 287), rgb(73, 57, 145).
Aa
White text reads best on this color (9.22:1).
About this color
#493991 is a dark, moderately saturated purple. In OKLCH its lightness is 41%, its chroma 0.139 and its hue 287°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.015 away. White text reads best on it, at 9.22:1.
| Hue family | Purples |
| Lightness | dark (41%) |
| Chroma | moderately saturated (0.139) |
| Temperature | cool |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.27:1 |
| White text | 9.22:1 |
Values
| HEX | #493991 |
| RGB | rgb(73, 57, 145) |
| HSL | hsl(251, 44%, 40%) |
| OKLCH | oklch(41.3% 0.139 287) |
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 #493991 | 9.22:1 | AAA | Lc -95.3 | Preferred for body text |
| Black text on #493991 | 2.27:1 | Fails | Lc 13.1 | Not readable |
| #493991 text on white | 9.22:1 | AAA | Lc 90.9 | Preferred for body text |
| #493991 text on black | 2.27:1 | Fails | Lc -11.4 | 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 800.
-
Step 50
50
#F5F4FD
oklch(97% 0.012 291.3)
-
Step 100
100
#E8E8F9
oklch(93.6% 0.023 286)
-
Step 200
200
#D6D5F6
oklch(88.4% 0.045 286.8)
-
Step 300
300
#BCB9F3
oklch(80.8% 0.081 286.8)
-
Step 400
400
#9C93ED
oklch(70.8% 0.13 287.2)
-
Step 500
500
#8575E7
oklch(63% 0.166 287.1)
-
Step 600
600
#705BD5
oklch(55.6% 0.18 286.9)
-
Step 700
700
#5E4AB9
oklch(49.1% 0.168 286.8)
-
Step 800
800 (this color)
#493991
oklch(41.3% 0.139 287)
-
Step 900
900
#3F3577
oklch(37.6% 0.109 286.9)
-
Step 950
950
#252046
oklch(27.1% 0.069 286.9)
#493991 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) | #004A94 | 0.076 |
| Deuteranopia (no green cones) | #00458F | 0.075 |
| Tritanopia (no blue cones) | #304D5F | 0.115 |
| Achromatopsia (no color) | #474747 | 0.140 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #493991
#493991
oklch(41.3% 0.139 287)
- #514E00
#514E00
oklch(41.3% 0.089 107.2)
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 #493991, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.015
- Blueberry #464196 ΔE 0.021
- Rebecca Purple #663399 ΔE 0.055
- Cobalt #1E488F ΔE 0.063
- Twilight #4E518B ΔE 0.067
- Sapphire #2138AB ΔE 0.070
- Imperial Purple #480CA8 ΔE 0.077
- Dusk Blue #26538D ΔE 0.078
Use #493991 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.