#47377D
Closest named color: Dark Slate Blue (#483D8B). oklch(39.2% 0.114 290.7), rgb(71, 55, 125).
Aa
White text reads best on this color (9.95:1).
About this color
#47377D is a dark, moderately saturated purple. In OKLCH its lightness is 39%, its chroma 0.114 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 0.027 away. White text reads best on it, at 9.95:1.
| Hue family | Purples |
| Lightness | dark (39%) |
| Chroma | moderately saturated (0.114) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.11:1 |
| White text | 9.95:1 |
Values
| HEX | #47377D |
| RGB | rgb(71, 55, 125) |
| HSL | hsl(254, 39%, 35%) |
| OKLCH | oklch(39.2% 0.114 290.7) |
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 #47377D | 9.95:1 | AAA | Lc -97.0 | Preferred for body text |
| Black text on #47377D | 2.11:1 | Fails | Lc 11.1 | Not readable |
| #47377D text on white | 9.95:1 | AAA | Lc 92.9 | Preferred for body text |
| #47377D text on black | 2.11:1 | Fails | Lc -9.6 | 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
#F5F4FD
oklch(97% 0.012 291.3)
-
Step 100
100
#E9E7FA
oklch(93.5% 0.026 290.7)
-
Step 200
200
#D8D4F7
oklch(88.4% 0.048 290.6)
-
Step 300
300
#C0B7F4
oklch(80.8% 0.086 291.1)
-
Step 400
400
#A190EF
oklch(70.7% 0.137 290.7)
-
Step 500
500
#8C71E9
oklch(63.1% 0.174 290.9)
-
Step 600
600
#7756D8
oklch(55.6% 0.19 290.6)
-
Step 700
700
#6545BB
oklch(49.1% 0.177 290.9)
-
Step 800
800
#523A97
oklch(42.8% 0.145 290.8)
-
Step 900
900 (this color)
#47377D
oklch(39.2% 0.114 290.7)
-
Step 950
950
#271E47
oklch(26.9% 0.074 290.7)
#47377D 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) | #16447F | 0.066 |
| Deuteranopia (no green cones) | #18417B | 0.064 |
| Tritanopia (no blue cones) | #384654 | 0.094 |
| Achromatopsia (no color) | #434343 | 0.114 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #47377D
#47377D
oklch(39.2% 0.114 290.7)
- #484900
#484900
oklch(39.1% 0.086 110.7)
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 #47377D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.027
- Blueberry #464196 ΔE 0.046
- Cobalt #1E488F ΔE 0.068
- Rebecca Purple #663399 ΔE 0.073
- Twilight Blue #0A437A ΔE 0.073
- Twilight #4E518B ΔE 0.074
- Dusk #4E5481 ΔE 0.083
- Light Navy #155084 ΔE 0.083
Use #47377D 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.