#473F70
Closest named color: Dark Slate Blue (#483D8B). oklch(39.9% 0.081 289.7), rgb(71, 63, 112).
Aa
White text reads best on this color (9.48:1).
About this color
#473F70 is a dark, moderately saturated purple. In OKLCH its lightness is 40%, its chroma 0.081 and its hue 290°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.047 away. White text reads best on it, at 9.48:1.
| Hue family | Purples |
| Lightness | dark (40%) |
| Chroma | moderately saturated (0.081) |
| Temperature | cool |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.21:1 |
| White text | 9.48:1 |
Values
| HEX | #473F70 |
| RGB | rgb(71, 63, 112) |
| HSL | hsl(250, 28%, 34%) |
| OKLCH | oklch(39.9% 0.081 289.7) |
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 #473F70 | 9.48:1 | AAA | Lc -96.1 | Preferred for body text |
| Black text on #473F70 | 2.21:1 | Fails | Lc 12.1 | Not readable |
| #473F70 text on white | 9.48:1 | AAA | Lc 91.9 | Preferred for body text |
| #473F70 text on black | 2.21:1 | 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
#F5F5FB
oklch(97.2% 0.008 286.3)
-
Step 100
100
#E9E8F5
oklch(93.6% 0.017 289.6)
-
Step 200
200
#D8D6EF
oklch(88.5% 0.034 289.4)
-
Step 300
300
#BFBBE6
oklch(81% 0.06 289.2)
-
Step 400
400
#9F96DA
oklch(70.7% 0.099 289.7)
-
Step 500
500
#897BCF
oklch(63.1% 0.124 290)
-
Step 600
600
#7363BC
oklch(55.6% 0.135 289.6)
-
Step 700
700
#6151A2
oklch(49% 0.126 290)
-
Step 800
800
#4F4384
oklch(42.8% 0.105 289.7)
-
Step 900
900 (this color)
#473F70
oklch(39.9% 0.081 289.7)
-
Step 950
950
#26223E
oklch(27.1% 0.051 289.1)
#473F70 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) | #2F4772 | 0.039 |
| Deuteranopia (no green cones) | #2F456F | 0.038 |
| Tritanopia (no blue cones) | #3D4852 | 0.067 |
| Achromatopsia (no color) | #464646 | 0.081 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #473F70
#473F70
oklch(39.9% 0.081 289.7)
- #4B4B0A
#4B4B0A
oklch(40% 0.082 109.6)
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 #473F70, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.047
- Blueberry #464196 ΔE 0.063
- Dark Grey Blue #29465B ΔE 0.064
- Twilight #4E518B ΔE 0.064
- Dusk #4E5481 ΔE 0.064
- Twilight Blue #0A437A ΔE 0.068
- Cobalt #1E488F ΔE 0.070
- Light Navy #155084 ΔE 0.071
Use #473F70 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.