#422D7D
Closest named color: Dark Slate Blue (#483D8B). oklch(36.9% 0.129 290.8), rgb(66, 45, 125).
Aa
White text reads best on this color (11.03:1).
About this color
#422D7D is a dark, moderately saturated purple. In OKLCH its lightness is 37%, its chroma 0.129 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 0.047 away. White text reads best on it, at 11.03:1.
| Hue family | Purples |
| Lightness | dark (37%) |
| Chroma | moderately saturated (0.129) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 1.90:1 |
| White text | 11.03:1 |
Values
| HEX | #422D7D |
| RGB | rgb(66, 45, 125) |
| HSL | hsl(256, 47%, 33%) |
| OKLCH | oklch(36.9% 0.129 290.8) |
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 #422D7D | 11.03:1 | AAA | Lc -99.0 | Preferred for body text |
| Black text on #422D7D | 1.90:1 | Fails | Lc 8.8 | Not readable |
| #422D7D text on white | 11.03:1 | AAA | Lc 95.1 | Preferred for body text |
| #422D7D text on black | 1.90:1 | Fails | Lc -7.5 | 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
#F5F4FE
oklch(97.1% 0.013 290.8)
-
Step 100
100
#E9E7FC
oklch(93.6% 0.028 290.2)
-
Step 200
200
#D8D4FB
oklch(88.5% 0.053 290)
-
Step 300
300
#C0B6FB
oklch(80.9% 0.097 290.7)
-
Step 400
400
#A28DF9
oklch(70.8% 0.155 290.8)
-
Step 500
500
#8D6CF6
oklch(63.2% 0.198 290.6)
-
Step 600
600
#794EE5
oklch(55.6% 0.216 290.7)
-
Step 700
700
#663DC7
oklch(49% 0.201 290.7)
-
Step 800
800
#5334A1
oklch(42.7% 0.167 290.7)
-
Step 900
900 (this color)
#422D7D
oklch(36.9% 0.129 290.8)
-
Step 950
950
#281D4B
oklch(27.2% 0.082 291)
#422D7D 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) | #003D80 | 0.076 |
| Deuteranopia (no green cones) | #003A7B | 0.076 |
| Tritanopia (no blue cones) | #303F50 | 0.104 |
| Achromatopsia (no color) | #3C3C3C | 0.130 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #422D7D
#422D7D
oklch(36.9% 0.129 290.8)
- #424300
#424300
oklch(37% 0.081 110.7)
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 #422D7D, 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
- Indigo #4B0082 ΔE 0.065
- Royal Purple #4B006E ΔE 0.076
- Twilight Blue #0A437A ΔE 0.081
- Cobalt #1E488F ΔE 0.081
- Imperial Purple #480CA8 ΔE 0.082
- Rebecca Purple #663399 ΔE 0.084
Use #422D7D 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.