#43427E
Closest named color: Dark Slate Blue (#483D8B). oklch(41.1% 0.098 281.9), rgb(67, 66, 126).
Aa
White text reads best on this color (9.05:1).
About this color
#43427E is a dark, moderately saturated purple. In OKLCH its lightness is 41%, its chroma 0.098 and its hue 282°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.028 away. White text reads best on it, at 9.05:1.
| Hue family | Purples |
| Lightness | dark (41%) |
| Chroma | moderately saturated (0.098) |
| Temperature | cool |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.31:1 |
| White text | 9.05:1 |
Values
| HEX | #43427E |
| RGB | rgb(67, 66, 126) |
| HSL | hsl(241, 31%, 38%) |
| OKLCH | oklch(41.1% 0.098 281.9) |
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 #43427E | 9.05:1 | AAA | Lc -95.1 | Preferred for body text |
| Black text on #43427E | 2.31:1 | Fails | Lc 13.3 | Not readable |
| #43427E text on white | 9.05:1 | AAA | Lc 90.7 | Preferred for body text |
| #43427E text on black | 2.31:1 | Fails | Lc -11.6 | 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 800.
-
Step 50
50
#F4F5FB
oklch(97.1% 0.008 278.6)
-
Step 100
100
#E8E9F5
oklch(93.7% 0.016 282.3)
-
Step 200
200
#D5D7EE
oklch(88.5% 0.032 281.8)
-
Step 300
300
#BABDE6
oklch(81% 0.058 281.7)
-
Step 400
400
#979AD9
oklch(70.8% 0.092 281.7)
-
Step 500
500
#7E80CF
oklch(63.2% 0.118 281.4)
-
Step 600
600
#6968BB
oklch(55.7% 0.127 282)
-
Step 700
700
#5756A2
oklch(49.2% 0.119 281.7)
-
Step 800
800 (this color)
#43427E
oklch(41.1% 0.098 281.9)
-
Step 900
900
#3B3C69
oklch(37.8% 0.076 281.1)
-
Step 950
950
#23233D
oklch(27% 0.048 282.7)
#43427E 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) | #2A4B80 | 0.038 |
| Deuteranopia (no green cones) | #27477D | 0.038 |
| Tritanopia (no blue cones) | #304E5A | 0.083 |
| Achromatopsia (no color) | #494949 | 0.099 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #43427E
#43427E
oklch(41.1% 0.098 281.9)
- #544C00
#544C00
oklch(41.2% 0.086 102.5)
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 #43427E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.028
- Blueberry #464196 ΔE 0.041
- Twilight #4E518B ΔE 0.049
- Cobalt #1E488F ΔE 0.051
- Dusk #4E5481 ΔE 0.056
- Dusk Blue #26538D ΔE 0.056
- Light Navy #155084 ΔE 0.058
- Twilight Blue #0A437A ΔE 0.061
Use #43427E 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.