#422F8A
Closest named color: Dark Slate Blue (#483D8B). oklch(38.3% 0.144 287.1), rgb(66, 47, 138).
Aa
White text reads best on this color (10.47:1).
About this color
#422F8A is a dark, vivid purple. In OKLCH its lightness is 38%, its chroma 0.144 and its hue 287°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.037 away. White text reads best on it, at 10.47:1.
| Hue family | Purples |
| Lightness | dark (38%) |
| Chroma | vivid (0.144) |
| Temperature | cool |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.00:1 |
| White text | 10.47:1 |
Values
| HEX | #422F8A |
| RGB | rgb(66, 47, 138) |
| HSL | hsl(253, 49%, 36%) |
| OKLCH | oklch(38.3% 0.144 287.1) |
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 #422F8A | 10.47:1 | AAA | Lc -97.9 | Preferred for body text |
| Black text on #422F8A | 2.00:1 | Fails | Lc 10.1 | Not readable |
| #422F8A text on white | 10.47:1 | AAA | Lc 93.8 | Preferred for body text |
| #422F8A text on black | 2.00:1 | Fails | Lc -8.7 | 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
#F4F4FF
oklch(97% 0.015 286.1)
-
Step 100
100
#E8E7FE
oklch(93.6% 0.031 287.8)
-
Step 200
200
#D6D4FF
oklch(88.5% 0.059 287.3)
-
Step 300
300
#BCB7FF
oklch(80.9% 0.101 287.1)
-
Step 400
400
#9C8EFF
oklch(70.8% 0.161 287.2)
-
Step 500
500
#866BFF
oklch(63% 0.211 287.1)
-
Step 600
600
#7349F4
oklch(55.6% 0.239 287.1)
-
Step 700
700
#6138D5
oklch(49.2% 0.223 287)
-
Step 800
800
#4F30AC
oklch(42.7% 0.185 287.2)
-
Step 900
900 (this color)
#422F8A
oklch(38.3% 0.144 287.1)
-
Step 950
950
#251C50
oklch(27.1% 0.091 286.5)
#422F8A 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) | #00428D | 0.074 |
| Deuteranopia (no green cones) | #003D88 | 0.072 |
| Tritanopia (no blue cones) | #284558 | 0.118 |
| Achromatopsia (no color) | #3F3F3F | 0.145 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #422F8A
#422F8A
oklch(38.3% 0.144 287.1)
- #484600
#484600
oklch(38.4% 0.083 107.9)
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 #422F8A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.037
- Blueberry #464196 ΔE 0.048
- Imperial Purple #480CA8 ΔE 0.066
- Indigo #4B0082 ΔE 0.070
- Cobalt #1E488F ΔE 0.072
- Sapphire #2138AB ΔE 0.072
- Rebecca Purple #663399 ΔE 0.073
- Indigo Blue #3A18B1 ΔE 0.074
Use #422F8A 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.