#422B7E
Closest named color: Dark Slate Blue (#483D8B). oklch(36.6% 0.133 291.1), rgb(66, 43, 126).
Aa
White text reads best on this color (11.17:1).
About this color
#422B7E is a dark, moderately saturated purple. In OKLCH its lightness is 37%, its chroma 0.133 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 0.050 away. White text reads best on it, at 11.17:1.
| Hue family | Purples |
| Lightness | dark (37%) |
| Chroma | moderately saturated (0.133) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 1.87:1 |
| White text | 11.17:1 |
Values
| HEX | #422B7E |
| RGB | rgb(66, 43, 126) |
| HSL | hsl(257, 49%, 33%) |
| OKLCH | oklch(36.6% 0.133 291.1) |
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 #422B7E | 11.17:1 | AAA | Lc -99.2 | Preferred for body text |
| Black text on #422B7E | 1.87:1 | Fails | Lc 8.5 | Not readable |
| #422B7E text on white | 11.17:1 | AAA | Lc 95.4 | Preferred for body text |
| #422B7E text on black | 1.87:1 | Fails | Lc 0.0 | 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
#D9D3FC
oklch(88.5% 0.056 291.9)
-
Step 300
300
#C1B5FD
oklch(80.9% 0.101 291.6)
-
Step 400
400
#A28CFC
oklch(70.8% 0.16 290.8)
-
Step 500
500
#8E6AF9
oklch(63.1% 0.204 291)
-
Step 600
600
#7A4BE8
oklch(55.5% 0.223 291.1)
-
Step 700
700
#673BCA
oklch(49.1% 0.207 290.9)
-
Step 800
800
#5432A3
oklch(42.7% 0.171 291.2)
-
Step 900
900 (this color)
#422B7E
oklch(36.6% 0.133 291.1)
-
Step 950
950
#281C4C
oklch(27% 0.085 291.2)
#422B7E 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) | #003D81 | 0.078 |
| Deuteranopia (no green cones) | #00397C | 0.077 |
| Tritanopia (no blue cones) | #303F50 | 0.108 |
| Achromatopsia (no color) | #3B3B3B | 0.134 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #422B7E
#422B7E
oklch(36.6% 0.133 291.1)
- #414200
#414200
oklch(36.6% 0.08 110.7)
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 #422B7E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.050
- Indigo #4B0082 ΔE 0.061
- Blueberry #464196 ΔE 0.066
- Royal Purple #4B006E ΔE 0.073
- Imperial Purple #480CA8 ΔE 0.078
- Twilight Blue #0A437A ΔE 0.084
- Cobalt #1E488F ΔE 0.084
- Rebecca Purple #663399 ΔE 0.084
Use #422B7E 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.