#423483
Closest named color: Dark Slate Blue (#483D8B). oklch(38.6% 0.127 287), rgb(66, 52, 131).
Aa
White text reads best on this color (10.24:1).
About this color
#423483 is a dark, moderately saturated purple. In OKLCH its lightness is 39%, its chroma 0.127 and its hue 287°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.028 away. White text reads best on it, at 10.24:1.
| Hue family | Purples |
| Lightness | dark (39%) |
| Chroma | moderately saturated (0.127) |
| Temperature | cool |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.05:1 |
| White text | 10.24:1 |
Values
| HEX | #423483 |
| RGB | rgb(66, 52, 131) |
| HSL | hsl(251, 43%, 36%) |
| OKLCH | oklch(38.6% 0.127 287) |
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 #423483 | 10.24:1 | AAA | Lc -97.5 | Preferred for body text |
| Black text on #423483 | 2.05:1 | Fails | Lc 10.5 | Not readable |
| #423483 text on white | 10.24:1 | AAA | Lc 93.5 | Preferred for body text |
| #423483 text on black | 2.05:1 | Fails | Lc -9.0 | 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
#F4F4FE
oklch(97% 0.013 286.1)
-
Step 100
100
#E8E8FC
oklch(93.7% 0.027 285.9)
-
Step 200
200
#D6D5FB
oklch(88.6% 0.052 286.5)
-
Step 300
300
#BCB8FC
oklch(81% 0.095 286.8)
-
Step 400
400
#9B8FFA
oklch(70.6% 0.153 286.9)
-
Step 500
500
#866FF7
oklch(63.1% 0.195 287.2)
-
Step 600
600
#7152E6
oklch(55.5% 0.213 286.9)
-
Step 700
700
#5F41C8
oklch(49% 0.198 286.8)
-
Step 800
800
#4E37A2
oklch(42.8% 0.164 287.2)
-
Step 900
900 (this color)
#423483
oklch(38.6% 0.127 287)
-
Step 950
950
#251E4B
oklch(27% 0.08 286.9)
#423483 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) | #004386 | 0.071 |
| Deuteranopia (no green cones) | #003F81 | 0.070 |
| Tritanopia (no blue cones) | #2C4656 | 0.106 |
| Achromatopsia (no color) | #414141 | 0.128 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #423483
#423483
oklch(38.6% 0.127 287)
- #494600
#494600
oklch(38.5% 0.082 106.9)
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 #423483, 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 0.045
- Cobalt #1E488F ΔE 0.065
- Twilight Blue #0A437A ΔE 0.072
- Rebecca Purple #663399 ΔE 0.075
- Sapphire #2138AB ΔE 0.079
- Indigo #4B0082 ΔE 0.080
- Twilight #4E518B ΔE 0.082
Use #423483 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.