#423A60
Closest named color: Dark Grey Blue (#29465B). oklch(37.4% 0.064 292.7), rgb(66, 58, 96).
Aa
White text reads best on this color (10.46:1).
About this color
#423A60 is a dark, muted purple. In OKLCH its lightness is 37%, its chroma 0.064 and its hue 293°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Grey Blue (#29465B), ΔE 0.052 away. White text reads best on it, at 10.46:1.
| Hue family | Purples |
| Lightness | dark (37%) |
| Chroma | muted (0.064) |
| Temperature | in between |
| Nearest name | Dark Grey Blue (#29465B) |
| Black text | 2.00:1 |
| White text | 10.46:1 |
Values
| HEX | #423A60 |
| RGB | rgb(66, 58, 96) |
| HSL | hsl(253, 25%, 30%) |
| OKLCH | oklch(37.4% 0.064 292.7) |
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 #423A60 | 10.46:1 | AAA | Lc -98.2 | Preferred for body text |
| Black text on #423A60 | 2.00:1 | Fails | Lc 9.7 | Not readable |
| #423A60 text on white | 10.46:1 | AAA | Lc 94.2 | Preferred for body text |
| #423A60 text on black | 2.00:1 | Fails | Lc -8.3 | 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
#F5F5F9
oklch(97.1% 0.005 286.3)
-
Step 100
100
#EAE8F3
oklch(93.6% 0.015 294.5)
-
Step 200
200
#D9D6EA
oklch(88.4% 0.027 292.7)
-
Step 300
300
#C1BBDE
oklch(80.8% 0.049 293.1)
-
Step 400
400
#A298CD
oklch(70.7% 0.077 293)
-
Step 500
500
#8B7EC0
oklch(63.1% 0.098 292.4)
-
Step 600
600
#7666AC
oklch(55.5% 0.107 293.1)
-
Step 700
700
#635594
oklch(49.2% 0.099 292.6)
-
Step 800
800
#514678
oklch(42.8% 0.082 292.7)
-
Step 900
900 (this color)
#423A60
oklch(37.4% 0.064 292.7)
-
Step 950
950
#272339
oklch(27.1% 0.041 291.8)
#423A60 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) | #2F4061 | 0.032 |
| Deuteranopia (no green cones) | #303F5F | 0.031 |
| Tritanopia (no blue cones) | #3B4148 | 0.054 |
| Achromatopsia (no color) | #3F3F3F | 0.065 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #423A60
#423A60
oklch(37.4% 0.064 292.7)
- #414418
#414418
oklch(37.3% 0.064 112.7)
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 #423A60, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Grey Blue #29465B ΔE 0.052
- Prussian Blue #1D3557 ΔE 0.062
- Charcoal #264653 ΔE 0.062
- Onyx #343A40 ΔE 0.063
- Dark Blue Grey #1F3B4D ΔE 0.064
- Charcoal Grey #3C4142 ΔE 0.064
- Twilight Blue #0A437A ΔE 0.072
- Gunmetal #293241 ΔE 0.073
Use #423A60 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.