#473989
Closest named color: Dark Slate Blue (#483D8B). oklch(40.5% 0.128 287.3), rgb(71, 57, 137).
Aa
White text reads best on this color (9.48:1).
About this color
#473989 is a dark, moderately saturated purple. In OKLCH its lightness is 40%, its chroma 0.128 and its hue 287°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.011 away. White text reads best on it, at 9.48:1.
| Hue family | Purples |
| Lightness | dark (40%) |
| Chroma | moderately saturated (0.128) |
| Temperature | cool |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.21:1 |
| White text | 9.48:1 |
Values
| HEX | #473989 |
| RGB | rgb(71, 57, 137) |
| HSL | hsl(251, 41%, 38%) |
| OKLCH | oklch(40.5% 0.128 287.3) |
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 #473989 | 9.48:1 | AAA | Lc -95.9 | Preferred for body text |
| Black text on #473989 | 2.21:1 | Fails | Lc 12.3 | Not readable |
| #473989 text on white | 9.48:1 | AAA | Lc 91.6 | Preferred for body text |
| #473989 text on black | 2.21:1 | Fails | Lc -10.7 | 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
#F5F5FC
oklch(97.2% 0.009 286.2)
-
Step 100
100
#E8E8F8
oklch(93.6% 0.022 286)
-
Step 200
200
#D7D6F4
oklch(88.6% 0.041 287.1)
-
Step 300
300
#BDBAEF
oklch(80.9% 0.074 287.2)
-
Step 400
400
#9C94E7
oklch(70.6% 0.12 287.3)
-
Step 500
500
#8577E0
oklch(63% 0.154 287.2)
-
Step 600
600
#705ECE
oklch(55.6% 0.167 287.1)
-
Step 700
700
#5E4DB2
oklch(49.1% 0.154 287)
-
Step 800
800 (this color)
#473989
oklch(40.5% 0.128 287.3)
-
Step 900
900
#3F3773
oklch(37.7% 0.099 286.7)
-
Step 950
950
#252143
oklch(27.1% 0.062 286.9)
#473989 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) | #05488C | 0.072 |
| Deuteranopia (no green cones) | #044487 | 0.071 |
| Tritanopia (no blue cones) | #314B5B | 0.107 |
| Achromatopsia (no color) | #464646 | 0.128 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #473989
#473989
oklch(40.5% 0.128 287.3)
- #4E4C00
#4E4C00
oklch(40.5% 0.087 108)
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 #473989, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.011
- Blueberry #464196 ΔE 0.028
- Cobalt #1E488F ΔE 0.060
- Rebecca Purple #663399 ΔE 0.063
- Twilight #4E518B ΔE 0.067
- Dusk Blue #26538D ΔE 0.076
- Twilight Blue #0A437A ΔE 0.076
- Sapphire #2138AB ΔE 0.077
Use #473989 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.