#423467
Closest named color: Dark Slate Blue (#483D8B). oklch(36.6% 0.086 294.4), rgb(66, 52, 103).
Aa
White text reads best on this color (10.94:1).
About this color
#423467 is a dark, moderately saturated purple. In OKLCH its lightness is 37%, its chroma 0.086 and its hue 294°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.064 away. White text reads best on it, at 10.94:1.
| Hue family | Purples |
| Lightness | dark (37%) |
| Chroma | moderately saturated (0.086) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 1.91:1 |
| White text | 10.94:1 |
Values
| HEX | #423467 |
| RGB | rgb(66, 52, 103) |
| HSL | hsl(256, 33%, 30%) |
| OKLCH | oklch(36.6% 0.086 294.4) |
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 #423467 | 10.94:1 | AAA | Lc -99.1 | Preferred for body text |
| Black text on #423467 | 1.91:1 | Fails | Lc 8.7 | Not readable |
| #423467 text on white | 10.94:1 | AAA | Lc 95.2 | Preferred for body text |
| #423467 text on black | 1.91:1 | Fails | Lc -7.4 | 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
#EAE8F5
oklch(93.6% 0.018 293.1)
-
Step 200
200
#DAD5EF
oklch(88.5% 0.036 294.5)
-
Step 300
300
#C3B9E7
oklch(80.9% 0.065 294.9)
-
Step 400
400
#A494DB
oklch(70.7% 0.103 293.9)
-
Step 500
500
#8F78D1
oklch(63.2% 0.132 294.2)
-
Step 600
600
#7A5FBE
oklch(55.7% 0.144 294.4)
-
Step 700
700
#674EA4
oklch(49.2% 0.134 294.4)
-
Step 800
800
#544085
oklch(42.7% 0.111 294.6)
-
Step 900
900 (this color)
#423467
oklch(36.6% 0.086 294.4)
-
Step 950
950
#28213E
oklch(27.1% 0.053 293.6)
#423467 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) | #233D69 | 0.050 |
| Deuteranopia (no green cones) | #253C66 | 0.048 |
| Tritanopia (no blue cones) | #393E48 | 0.071 |
| Achromatopsia (no color) | #3D3D3D | 0.086 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #423467
#423467
oklch(36.6% 0.086 294.4)
- #3E4300
#3E4300
oklch(36.6% 0.083 114.5)
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 #423467, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.064
- Prussian Blue #1D3557 ΔE 0.065
- Dark Grey Blue #29465B ΔE 0.071
- Marine Blue #01386A ΔE 0.074
- Twilight Blue #0A437A ΔE 0.074
- Dark Blue Grey #1F3B4D ΔE 0.076
- Space Cadet #2B2D42 ΔE 0.079
- Onyx #343A40 ΔE 0.080
Use #423467 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.