#423662
Closest named color: Prussian Blue (#1D3557). oklch(36.7% 0.075 295), rgb(66, 54, 98).
Aa
White text reads best on this color (10.84:1).
About this color
#423662 is a dark, moderately saturated purple. In OKLCH its lightness is 37%, its chroma 0.075 and its hue 295°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Prussian Blue (#1D3557), ΔE 0.061 away. White text reads best on it, at 10.84:1.
| Hue family | Purples |
| Lightness | dark (37%) |
| Chroma | moderately saturated (0.075) |
| Temperature | in between |
| Nearest name | Prussian Blue (#1D3557) |
| Black text | 1.93:1 |
| White text | 10.84:1 |
Values
| HEX | #423662 |
| RGB | rgb(66, 54, 98) |
| HSL | hsl(256, 29%, 30%) |
| OKLCH | oklch(36.7% 0.075 295) |
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 #423662 | 10.84:1 | AAA | Lc -98.9 | Preferred for body text |
| Black text on #423662 | 1.93:1 | Fails | Lc 8.9 | Not readable |
| #423662 text on white | 10.84:1 | AAA | Lc 95.0 | Preferred for body text |
| #423662 text on black | 1.93:1 | Fails | Lc -7.6 | 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
#F6F4FA
oklch(97% 0.008 301.4)
-
Step 100
100
#EAE8F4
oklch(93.6% 0.016 293.7)
-
Step 200
200
#DAD5EC
oklch(88.4% 0.032 295.7)
-
Step 300
300
#C3BAE2
oklch(80.9% 0.057 295.4)
-
Step 400
400
#A496D3
oklch(70.8% 0.089 294.6)
-
Step 500
500
#8F7AC7
oklch(63% 0.115 295.5)
-
Step 600
600
#7962B4
oklch(55.5% 0.125 294.9)
-
Step 700
700
#66519B
oklch(49.1% 0.116 294.8)
-
Step 800
800
#53437E
oklch(42.8% 0.096 294.5)
-
Step 900
900 (this color)
#423662
oklch(36.7% 0.075 295)
-
Step 950
950
#28213B
oklch(26.9% 0.048 295.4)
#423662 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) | #293D64 | 0.041 |
| Deuteranopia (no green cones) | #2B3C61 | 0.039 |
| Tritanopia (no blue cones) | #3B3E47 | 0.061 |
| Achromatopsia (no color) | #3D3D3D | 0.075 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #423662
#423662
oklch(36.7% 0.075 295)
- #3E430C
#3E430C
oklch(36.6% 0.075 114.7)
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 #423662, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Prussian Blue #1D3557 ΔE 0.061
- Dark Grey Blue #29465B ΔE 0.062
- Dark Blue Grey #1F3B4D ΔE 0.069
- Onyx #343A40 ΔE 0.070
- Dark Slate Blue #483D8B ΔE 0.071
- Charcoal #264653 ΔE 0.072
- Space Cadet #2B2D42 ΔE 0.074
- Gunmetal #293241 ΔE 0.074
Use #423662 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.