#422F7D
Closest named color: Dark Slate Blue (#483D8B). oklch(37.2% 0.126 290.1), rgb(66, 47, 125).
Aa
White text reads best on this color (10.85:1).
About this color
#422F7D is a dark, moderately saturated purple. In OKLCH its lightness is 37%, its chroma 0.126 and its hue 290°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.043 away. White text reads best on it, at 10.85:1.
| Hue family | Purples |
| Lightness | dark (37%) |
| Chroma | moderately saturated (0.126) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 1.93:1 |
| White text | 10.85:1 |
Values
| HEX | #422F7D |
| RGB | rgb(66, 47, 125) |
| HSL | hsl(255, 45%, 34%) |
| OKLCH | oklch(37.2% 0.126 290.1) |
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 #422F7D | 10.85:1 | AAA | Lc -98.7 | Preferred for body text |
| Black text on #422F7D | 1.93:1 | Fails | Lc 9.1 | Not readable |
| #422F7D text on white | 10.85:1 | AAA | Lc 94.8 | Preferred for body text |
| #422F7D text on black | 1.93:1 | Fails | Lc -7.8 | 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
#D8D4FA
oklch(88.5% 0.052 290.1)
-
Step 300
300
#BFB6FA
oklch(80.8% 0.095 290.2)
-
Step 400
400
#A18EF8
oklch(70.8% 0.152 290.2)
-
Step 500
500
#8C6DF4
oklch(63.1% 0.194 290.3)
-
Step 600
600
#7750E3
oklch(55.6% 0.211 290)
-
Step 700
700
#6540C5
oklch(49.2% 0.195 290.1)
-
Step 800
800
#52369F
oklch(42.7% 0.161 290.1)
-
Step 900
900 (this color)
#422F7D
oklch(37.2% 0.126 290.1)
-
Step 950
950
#271D4A
oklch(27% 0.08 290.2)
#422F7D 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) | #003F80 | 0.075 |
| Deuteranopia (no green cones) | #003B7B | 0.074 |
| Tritanopia (no blue cones) | #304151 | 0.103 |
| Achromatopsia (no color) | #3D3D3D | 0.127 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #422F7D
#422F7D
oklch(37.2% 0.126 290.1)
- #434400
#434400
oklch(37.3% 0.082 110.7)
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 #422F7D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.043
- Blueberry #464196 ΔE 0.060
- Indigo #4B0082 ΔE 0.070
- Cobalt #1E488F ΔE 0.077
- Twilight Blue #0A437A ΔE 0.077
- Royal Purple #4B006E ΔE 0.080
- Rebecca Purple #663399 ΔE 0.083
- Imperial Purple #480CA8 ΔE 0.084
Use #422F7D 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.