#423063
Closest named color: Prussian Blue (#1D3557). oklch(35.5% 0.087 298.1), rgb(66, 48, 99).
Aa
White text reads best on this color (11.44:1).
About this color
#423063 is a dark, moderately saturated purple. In OKLCH its lightness is 36%, its chroma 0.087 and its hue 298°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Prussian Blue (#1D3557), ΔE 0.063 away. White text reads best on it, at 11.44:1.
| Hue family | Purples |
| Lightness | dark (36%) |
| Chroma | moderately saturated (0.087) |
| Temperature | in between |
| Nearest name | Prussian Blue (#1D3557) |
| Black text | 1.83:1 |
| White text | 11.44:1 |
Values
| HEX | #423063 |
| RGB | rgb(66, 48, 99) |
| HSL | hsl(261, 35%, 29%) |
| OKLCH | oklch(35.5% 0.087 298.1) |
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 #423063 | 11.44:1 | AAA | Lc -100.0 | Preferred for body text |
| Black text on #423063 | 1.83:1 | Fails | Lc 7.7 | Not readable |
| #423063 text on white | 11.44:1 | AAA | Lc 96.2 | Preferred for body text |
| #423063 text on black | 1.83:1 | 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
#F6F4FB
oklch(97.1% 0.009 299.2)
-
Step 100
100
#EBE7F5
oklch(93.5% 0.019 299.1)
-
Step 200
200
#DCD4EF
oklch(88.5% 0.038 299.2)
-
Step 300
300
#C5B8E6
oklch(80.9% 0.065 297.9)
-
Step 400
400
#A992D9
oklch(70.7% 0.104 298.6)
-
Step 500
500
#9476CF
oklch(63.2% 0.133 298)
-
Step 600
600
#7F5DBC
oklch(55.7% 0.145 298.1)
-
Step 700
700
#6B4CA2
oklch(49.1% 0.135 297.9)
-
Step 800
800
#573F83
oklch(42.7% 0.111 297.8)
-
Step 900
900 (this color)
#423063
oklch(35.5% 0.087 298.1)
-
Step 950
950
#2A203E
oklch(27.1% 0.055 298)
#423063 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) | #1F3A65 | 0.057 |
| Deuteranopia (no green cones) | #233962 | 0.053 |
| Tritanopia (no blue cones) | #3B3A44 | 0.070 |
| Achromatopsia (no color) | #3A3A3A | 0.088 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #423063
#423063
oklch(35.5% 0.087 298.1)
- #384100
#384100
oklch(35.5% 0.083 118.2)
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 #423063, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Prussian Blue #1D3557 ΔE 0.063
- Space Cadet #2B2D42 ΔE 0.073
- Dark Slate Blue #483D8B ΔE 0.073
- Marine Blue #01386A ΔE 0.076
- Dark Blue Grey #1F3B4D ΔE 0.077
- Gunmetal #293241 ΔE 0.077
- Dark Grey Blue #29465B ΔE 0.077
- Grape Purple #5D1451 ΔE 0.079
Use #423063 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.