#423A52
Closest named color: Onyx (#343A40). oklch(36.7% 0.042 299.6), rgb(66, 58, 82).
Aa
White text reads best on this color (10.72:1).
About this color
#423A52 is a dark, muted purple. In OKLCH its lightness is 37%, its chroma 0.042 and its hue 300°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Onyx (#343A40), ΔE 0.041 away. White text reads best on it, at 10.72:1.
| Hue family | Purples |
| Lightness | dark (37%) |
| Chroma | muted (0.042) |
| Temperature | in between |
| Nearest name | Onyx (#343A40) |
| Black text | 1.95:1 |
| White text | 10.72:1 |
Values
| HEX | #423A52 |
| RGB | rgb(66, 58, 82) |
| HSL | hsl(260, 17%, 27%) |
| OKLCH | oklch(36.7% 0.042 299.6) |
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 #423A52 | 10.72:1 | AAA | Lc -98.8 | Preferred for body text |
| Black text on #423A52 | 1.95:1 | Fails | Lc 9.1 | Not readable |
| #423A52 text on white | 10.72:1 | AAA | Lc 94.8 | Preferred for body text |
| #423A52 text on black | 1.95:1 | Fails | Lc -7.8 | 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
#F6F5F8
oklch(97.2% 0.004 301.4)
-
Step 100
100
#EAE9EF
oklch(93.7% 0.008 293.9)
-
Step 200
200
#DAD7E3
oklch(88.5% 0.017 297.5)
-
Step 300
300
#C3BCD2
oklch(80.8% 0.031 300.2)
-
Step 400
400
#A59ABC
oklch(70.7% 0.05 299.9)
-
Step 500
500
#8F81AB
oklch(63.1% 0.064 299.8)
-
Step 600
600
#796A97
oklch(55.6% 0.071 299.4)
-
Step 700
700
#665880
oklch(49% 0.065 300.1)
-
Step 800
800
#534868
oklch(42.6% 0.054 299.9)
-
Step 900
900 (this color)
#423A52
oklch(36.7% 0.042 299.6)
-
Step 950
950
#282432
oklch(27.1% 0.026 297.7)
#423A52 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) | #353E53 | 0.023 |
| Deuteranopia (no green cones) | #363E51 | 0.023 |
| Tritanopia (no blue cones) | #3F3E42 | 0.035 |
| Achromatopsia (no color) | #3E3E3E | 0.042 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #423A52
#423A52
oklch(36.7% 0.042 299.6)
- #3C4229
#3C4229
oklch(36.6% 0.041 119.5)
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 #423A52, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Onyx #343A40 ΔE 0.041
- Charcoal Grey #3C4142 ΔE 0.042
- Dark Grey Blue #29465B ΔE 0.048
- Charcoal #264653 ΔE 0.052
- Dark Blue Grey #1F3B4D ΔE 0.053
- Gunmetal #293241 ΔE 0.058
- Prussian Blue #1D3557 ΔE 0.061
- Space Cadet #2B2D42 ΔE 0.064
Use #423A52 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.